Internet A. Lindem
Internet-Draft LabN Consulting, LLC
Intended status: Standards Track Y. Qu
Expires: 2 September 2025 Futurewei Technologies
1 March 2025
OSPF YANG Model Augmentations for Additional Features - Version 1
draft-ietf-lsr-ospf-yang-augmentation-v1-16
Abstract
This document defines YANG data modules that augment the IETF OSPF
YANG model to support various OSPF extensions and features, including
Traffic Engineering Extensions to OSPF Version 3 as defined in RFC
5329, OSPF Two-Part Metric as defined in RFC 8042, OSPF Graceful Link
Shutdown as defined in RFC 8379, OSPF Link-Local Signaling (LLS)
Extensions for Local Interface ID Advertisement as defined in RFC
8510, OSPF MSD as defined in RFC 8476, OSPF Application-Specific Link
Attributes as defined in RFC 9492, and OSPF Flexible Algorithm as
defined in RFC 9350.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 2 September 2025.
Copyright Notice
Copyright (c) 2025 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
Lindem & Qu Expires 2 September 2025 [Page 1]
Internet-Draft OSPF YANG Augments V1 March 2025
and restrictions with respect to this document. Code Components
extracted from this document must include Revised BSD License text as
described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Revised BSD License.
Table of Contents
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. YANG Module for Traffic Engineering Extensions to OSPF . . . 3
3. YANG Module for OSPF Extensions in Support of Inter-Autonomous
System (AS) MPLS and GMPLS Traffic Engineering . . . . . 10
4. YANG Module for OSPF Two-Part Metric . . . . . . . . . . . . 21
5. YANG Module for OSPF Graceful Link Shutdown . . . . . . . . . 26
6. YANG Module for OSPF LLS Extenstion for Local Interface ID
Advertisement . . . . . . . . . . . . . . . . . . . . . . 31
7. YANG Module for OSPF Maximum SID Depth (MSD) . . . . . . . . 33
8. YANG Module for OSPF Application-Specific Link Attributes . . 39
9. YANG Module for Advertising Layer 2 Bundle Member Link
Attributes in OSPF . . . . . . . . . . . . . . . . . . . 45
10. YANG Module for OSPF Flexible Algorithm . . . . . . . . . . . 54
11. YANG Module for OSPF Flexible Algorithms: Bandwidth, Delay,
Metrics and Constraints . . . . . . . . . . . . . . . . . 74
12. Security Considerations . . . . . . . . . . . . . . . . . . . 96
13. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 96
14. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 98
15. Normative References . . . . . . . . . . . . . . . . . . . . 98
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 101
1. Overview
YANG [RFC7950] is a data definition language used to define the
contents of a conceptual data store that allows networked devices to
be managed using NETCONF [RFC6241]. YANG is proving relevant beyond
its initial confines, as bindings to other interfaces (e.g., ReST)
and encodings other than XML (e.g., JSON) are being defined.
Furthermore, YANG data models can be used as the basis for
implementation of other interfaces, such as CLI and programmatic
APIs.
This document defines YANG data modules augmenting the IETF OSPF YANG
model [RFC9129], which itself augments [RFC8349], to provide support
for configuration and operational state for the following OSPF
features:
RFC5329: Traffic Engineering Extensions to OSPF Version 3 [RFC5329].
RFC5392: OSPF Extensions in Support of Inter-Autonomous System (AS)
Lindem & Qu Expires 2 September 2025 [Page 2]
Internet-Draft OSPF YANG Augments V1 March 2025
MPLS and GMPLS Traffic Engineering [RFC5392].
RFC8042: OSPF Two-Part Metric [RFC8042].
RFC8379: OSPF Graceful Link Shutdown [RFC8379].
RFC8476: Signaling Maximum SID Depth (MSD) Using OSPF[RFC8476].
RFC8510: OSPF Link-Local Signaling (LLS) Extensions for Local
Interface ID Advertisement [RFC8510].
RFC9356: Advertising Layer 2 Bundle Member Link Attributes in OSPF
[RFC9356].
RFC9492: OSPF Application-Specific Link Attributes [RFC9492].
RFC9350: IGP Flexible Algorithm [RFC9350].
I-D:ietf-lsr-flex-algo-bw-con: IGP Flexible Algorithms: Bandwidth,
Delay, Metrics and Constraints [I-D.ietf-lsr-flex-algo-bw-con].
The augmentations defined in this document requires support for the
OSPF base model[RFC9129] which defines basic OSPF configuration and
state. The OSPF YANG model augments the ietf-routing YANG model
defined in [RFC8349].
1.1. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
2. YANG Module for Traffic Engineering Extensions to OSPF
This document defines a YANG module for Traffic Engineering
Extensions to OSPF as defined in [RFC3630] and [RFC5329]. It is an
augmentation of the OSPF base model.
Lindem & Qu Expires 2 September 2025 [Page 3]
Internet-Draft OSPF YANG Augments V1 March 2025
module: ietf-ospfv3-te
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:mpls:
+--rw traffic-eng
+--rw enable? boolean
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:interfaces/ospf:interface:
+--rw traffic-eng
+--rw enable? boolean
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body:
+--ro ospfv3-intra-area-te
+--ro router-address-tlv
| +--ro router-address? inet:ipv6-address
+--ro link-tlv
+--ro link-type ospf:router-link-type
+--ro local-if-ipv6-addrs
| +--ro local-if-ipv6-addr* inet:ipv6-address
+--ro remote-if-ipv6-addrs
| +--ro remote-if-ipv6-addr* inet:ipv6-address
+--ro te-metric? uint32
+--ro max-bandwidth?
| rt-types:bandwidth-ieee-float32
+--ro max-reservable-bandwidth?
| rt-types:bandwidth-ieee-float32
+--ro unreserved-bandwidths
| +--ro unreserved-bandwidth*
| +--ro priority? uint8
| +--ro unreserved-bandwidth?
| rt-types:bandwidth-ieee-float32
+--ro admin-group? uint32
+--ro neighbor-id
| +--ro nbr-interface-id uint32
| +--ro nbr-router-id rt-types:router-id
+--ro unknown-tlvs
+--ro unknown-tlv*
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
Lindem & Qu Expires 2 September 2025 [Page 4]
Internet-Draft OSPF YANG Augments V1 March 2025
<CODE BEGINS> file "ietf-ospf-te@2025-02-27.yang"
module ietf-ospf-te {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-te";
prefix ospf-te;
import ietf-inet-types {
prefix inet;
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-routing-types {
prefix rt-types;
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
import ietf-routing {
prefix rt;
reference
"RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix ospf;
reference
"RFC 9129: YANG Data Model for the OSPF Protocol";
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yqu@futurewei.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for Traffic Engineering (TE) Extensions to OSPF Version 2
as defined in RFC 3630 and OSPFv3 extensions to support
Lindem & Qu Expires 2 September 2025 [Page 5]
Internet-Draft OSPF YANG Augments V1 March 2025
intra-area Traffic Engineering (TE) as defined in RFC 5329.
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2025-02-27 {
description
"Initial version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1";
}
identity ospfv3-intra-area-te-lsa {
base ospf:ospfv3-lsa-type;
description
"OSPFv3 Intrea-area TE LSA.";
}
grouping ospfv3-intra-area-te {
description
"Grouping for OSPFv3 intra-area-te-lsa.";
container ospfv3-intra-area-te {
container router-address-tlv {
description
"The router IPv6 address tlv advertises a
reachable IPv6 address.";
leaf router-address {
type inet:ipv6-address;
description
"Router IPv6 address.";
}
}
container link-tlv {
description
Lindem & Qu Expires 2 September 2025 [Page 6]
Internet-Draft OSPF YANG Augments V1 March 2025
"Describes a single link, and it is constructed
of a set of Sub-TLVs.";
leaf link-type {
type ospf:router-link-type;
mandatory true;
description
"Link type.";
}
container local-if-ipv6-addrs {
description
"All local interface IPv6 addresses.";
leaf-list local-if-ipv6-addr {
type inet:ipv6-address;
description
"List of local interface IPv6 addresses.";
}
}
container remote-if-ipv6-addrs {
description
"All remote interface IPv6 addresses.";
leaf-list remote-if-ipv6-addr {
type inet:ipv6-address;
description
"List of remote interface IPv6 addresses.";
}
}
leaf te-metric {
type uint32;
description
"TE metric.";
}
leaf max-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Maximum bandwidth.";
}
leaf max-reservable-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Maximum reservable bandwidth.";
}
container unreserved-bandwidths {
Lindem & Qu Expires 2 September 2025 [Page 7]
Internet-Draft OSPF YANG Augments V1 March 2025
description
"All unreserved bandwidths.";
list unreserved-bandwidth {
leaf priority {
type uint8 {
range "0 .. 7";
}
description
"Priority from 0 to 7.";
}
leaf unreserved-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Unreserved bandwidth.";
}
description
"List of unreserved bandwidths for different
priorities.";
}
}
leaf admin-group {
type uint32;
description
"Administrative group/Resource Class/Color.";
}
container neighbor-id {
description
"Neighbor link identification.";
leaf nbr-interface-id {
type uint32;
mandatory true;
description
"The neighbor's interface ID.";
}
leaf nbr-router-id {
type rt-types:router-id;
mandatory true;
description
"The neighbor's router ID.";
}
}
uses ospf:unknown-tlvs;
}
description
Lindem & Qu Expires 2 September 2025 [Page 8]
Internet-Draft OSPF YANG Augments V1 March 2025
"OSPFv3 Intra-Area-TE-LSA.";
reference
"RFC 5329: Traffic Engineering Extensions to OSPF Version 3";
}
}
/* Configuration */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol"
+ "/ospf:ospf/ospf:mpls" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospf')" {
description
"This augments the OSPF routing protocol when used.";
}
description
"This augments OSPF protocol configuration
with MPLS TE configuration.";
container traffic-eng {
description
"OSPF MPLS TE configuration.";
leaf enable {
type boolean;
default "false";
description
"Enables traffic engineering advertisement in OSPF.";
}
reference
"RFC 3630: Traffic Engineering (TE) Extensions to OSPF
Version 2
RFC 5329: Traffic Engineering Extensions to OSPF Version 3";
}
}
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/ospf:ospf/"
+ "ospf:areas/ospf:area/ospf:interfaces/ospf:interface" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospf')" {
description
"This augments the OSPF routing protocol interface
configuration.";
}
description
"This augments OSPF interface with MPLS TE configuration.";
container traffic-eng {
description
"OSPF interface MPLS TE configuration.";
Lindem & Qu Expires 2 September 2025 [Page 9]
Internet-Draft OSPF YANG Augments V1 March 2025
leaf enable {
type boolean;
default "false";
description
"Enables OSPF MPLS traffic engineering functionality on
the interface.";
}
}
}
/* Database */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body" {
when "../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"OSPFv3 Intra-Area-TE-LSA.";
uses ospfv3-intra-area-te;
}
}
<CODE ENDS>
3. YANG Module for OSPF Extensions in Support of Inter-Autonomous
System (AS) MPLS and GMPLS Traffic Engineering
This document defines a YANG module for OSPF Extensions in Support of
Inter-Autonomous System (AS) MPLS and GMPLS Traffic Engineering as
defined in [RFC5392].
module: ietf-ospf-inter-as-te
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf
/ospf:mpls/ospf-te:traffic-eng:
+--rw inter-as-te!
+--rw flood-as-wide? boolean
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
Lindem & Qu Expires 2 September 2025 [Page 10]
Internet-Draft OSPF YANG Augments V1 March 2025
/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque:
+--ro inter-as-te-v2
+--ro link-tlv
+--ro link-type ospf:router-link-type
+--ro local-if-ipv4-addrs
| +--ro local-if-ipv4-addr* inet:ipv4-address
+--ro remote-if-ipv4-addrs
| +--ro remote-if-ipv4-addr* inet:ipv4-address
+--ro te-metric? uint32
+--ro max-bandwidth? rt-types:bandwidth-ieee-float32
+--ro max-reservable-bandwidth? rt-types:bandwidth-ieee-float32
+--ro unreserved-bandwidths
| +--ro unreserved-bandwidth* []
| +--ro priority? uint8
| +--ro unreserved-bandwidth? rt-types:bandwidth-ieee-float32
+--ro admin-group? uint32
+--ro remote-as-number uint32
+--ro ipv4-remote-asbr-id? inet:ipv4-address
+--ro ipv6-remote-asbr-id? inet:ipv6-address
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas
/ospf:as-scope-lsa/ospf:version/ospf:ospfv2
/ospf:ospfv2/ospf:body/ospf:opaque:
+--ro inter-as-te-v2
+--ro link-tlv
+--ro link-type ospf:router-link-type
+--ro local-if-ipv4-addrs
| +--ro local-if-ipv4-addr* inet:ipv4-address
+--ro remote-if-ipv4-addrs
| +--ro remote-if-ipv4-addr* inet:ipv4-address
+--ro te-metric? uint32
+--ro max-bandwidth? rt-types:bandwidth-ieee-float32
+--ro max-reservable-bandwidth? rt-types:bandwidth-ieee-float32
+--ro unreserved-bandwidths
| +--ro unreserved-bandwidth* []
| +--ro priority? uint8
| +--ro unreserved-bandwidth? rt-types:bandwidth-ieee-float32
+--ro admin-group? uint32
+--ro remote-as-number uint32
+--ro ipv4-remote-asbr-id? inet:ipv4-address
+--ro ipv6-remote-asbr-id? inet:ipv6-address
+--ro unknown-tlvs
Lindem & Qu Expires 2 September 2025 [Page 11]
Internet-Draft OSPF YANG Augments V1 March 2025
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body:
+--ro inter-as-te-v3
+--ro link-tlv
+--ro link-type ospf:router-link-type
+--ro local-if-ipv6-addrs
| +--ro local-if-ipv6-addr* inet:ipv6-address
+--ro remote-if-ipv6-addrs
| +--ro remote-if-ipv6-addr* inet:ipv6-address
+--ro te-metric? uint32
+--ro max-bandwidth? rt-types:bandwidth-ieee-float32
+--ro max-reservable-bandwidth? rt-types:bandwidth-ieee-float32
+--ro unreserved-bandwidths
| +--ro unreserved-bandwidth* []
| +--ro priority? uint8
| +--ro unreserved-bandwidth? rt-types:bandwidth-ieee-float32
+--ro admin-group? uint32
+--ro remote-as-number uint32
+--ro ipv4-remote-asbr-id? inet:ipv4-address
+--ro ipv6-remote-asbr-id? inet:ipv6-address
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas
/ospf:as-scope-lsa/ospf:version/ospf:ospfv3
/ospf:ospfv3/ospf:body:
+--ro inter-as-te-v3
+--ro link-tlv
+--ro link-type ospf:router-link-type
+--ro local-if-ipv6-addrs
| +--ro local-if-ipv6-addr* inet:ipv6-address
+--ro remote-if-ipv6-addrs
| +--ro remote-if-ipv6-addr* inet:ipv6-address
+--ro te-metric? uint32
+--ro max-bandwidth? rt-types:bandwidth-ieee-float32
+--ro max-reservable-bandwidth? rt-types:bandwidth-ieee-float32
+--ro unreserved-bandwidths
Lindem & Qu Expires 2 September 2025 [Page 12]
Internet-Draft OSPF YANG Augments V1 March 2025
| +--ro unreserved-bandwidth* []
| +--ro priority? uint8
| +--ro unreserved-bandwidth? rt-types:bandwidth-ieee-float32
+--ro admin-group? uint32
+--ro remote-as-number uint32
+--ro ipv4-remote-asbr-id? inet:ipv4-address
+--ro ipv6-remote-asbr-id? inet:ipv6-address
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
<CODE BEGINS> file "ietf-ospf-inter-as-te@2025-02-27.yang"
module ietf-ospf-inter-as-te {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-inter-as-te";
prefix ospf-inter-as-te;
import ietf-inet-types {
prefix inet;
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-routing-types {
prefix rt-types;
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
import ietf-routing {
prefix rt;
reference
"RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix ospf;
reference
"RFC 9129: YANG Data Model for the OSPF Protocol";
}
import ietf-ospf-te {
prefix ospf-te;
reference
Lindem & Qu Expires 2 September 2025 [Page 13]
Internet-Draft OSPF YANG Augments V1 March 2025
"RFC 3630: Traffic Engineering (TE) Extensions to OSPF Version 2
RFC 5329: Traffic Engineering Extensions to OSPF Version 3";
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yqu@futurewei.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for OSPF Extensions in Support of Inter-Autonomous
System (AS) MPLS and GMPLS Traffic Engineering as defined
in RFC 5392.
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2025-02-27 {
description
"Initial version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1";
}
identity ospfv3-intra-area-te-lsa {
base ospf:ospfv3-lsa-type;
description
Lindem & Qu Expires 2 September 2025 [Page 14]
Internet-Draft OSPF YANG Augments V1 March 2025
"OSPFv3 Intrea-area TE LSA.";
}
grouping inter-as-te-v2-lsa {
description
"Grouping for OSPF Inter-AS-TE-2 LSA.";
container inter-as-te-v2 {
description
"The Inter-AS-TE-v2 LSA.";
container link-tlv {
description
"Describes a single link. It is constructed
from a set of sub-TLVs.";
leaf link-type {
type ospf:router-link-type;
mandatory true;
description
"Link type.";
}
container local-if-ipv4-addrs {
description
"All local interface IPv4 addresses.";
leaf-list local-if-ipv4-addr {
type inet:ipv4-address;
description
"List of local interface IPv4 addresses.";
}
}
container remote-if-ipv4-addrs {
description
"All remote interface IPv4 addresses.";
leaf-list remote-if-ipv4-addr {
type inet:ipv4-address;
description
"List of remote interface IPv4 addresses.";
}
}
leaf te-metric {
type uint32;
description
"TE metric.";
}
leaf max-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Maximum bandwidth.";
}
Lindem & Qu Expires 2 September 2025 [Page 15]
Internet-Draft OSPF YANG Augments V1 March 2025
leaf max-reservable-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Maximum reservable bandwidth.";
}
container unreserved-bandwidths {
description
"All unreserved bandwidths.";
list unreserved-bandwidth {
leaf priority {
type uint8 {
range "0 .. 7";
}
description
"Priority from 0 to 7.";
}
leaf unreserved-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Unreserved bandwidth.";
}
description
"List of unreserved bandwidths for different
priorities.";
}
}
leaf admin-group {
type uint32;
description
"Administrative Group / Resource Class/Color.";
}
leaf remote-as-number {
type uint32;
mandatory true;
description
"Remote AS number.";
}
leaf ipv4-remote-asbr-id {
type inet:ipv4-address;
description
"The neighboring ASBR IPv4 address.";
}
leaf ipv6-remote-asbr-id {
type inet:ipv6-address;
description
"The neighboring ASBR IPv6 address.";
}
uses ospf:unknown-tlvs;
Lindem & Qu Expires 2 September 2025 [Page 16]
Internet-Draft OSPF YANG Augments V1 March 2025
}
}
}
grouping inter-as-te-v3 {
description
"Grouping for OSPFv3 inter-as-te-v3 lsa.";
container inter-as-te-v3 {
container link-tlv {
description
"Describes a single link, and it is constructed
of a set of Sub-TLVs.";
leaf link-type {
type ospf:router-link-type;
mandatory true;
description
"Link type.";
}
container local-if-ipv6-addrs {
description
"All local interface IPv6 addresses.";
leaf-list local-if-ipv6-addr {
type inet:ipv6-address;
description
"List of local interface IPv6 addresses.";
}
}
container remote-if-ipv6-addrs {
description
"All remote interface IPv6 addresses.";
leaf-list remote-if-ipv6-addr {
type inet:ipv6-address;
description
"List of remote interface IPv6 addresses.";
}
}
leaf te-metric {
type uint32;
description
"TE metric.";
}
leaf max-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Maximum bandwidth.";
Lindem & Qu Expires 2 September 2025 [Page 17]
Internet-Draft OSPF YANG Augments V1 March 2025
}
leaf max-reservable-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Maximum reservable bandwidth.";
}
container unreserved-bandwidths {
description
"All unreserved bandwidths.";
list unreserved-bandwidth {
leaf priority {
type uint8 {
range "0 .. 7";
}
description
"Priority from 0 to 7.";
}
leaf unreserved-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"Unreserved bandwidth.";
}
description
"List of unreserved bandwidths for different
priorities.";
}
}
leaf admin-group {
type uint32;
description
"Administrative group/Resource Class/Color.";
}
leaf remote-as-number {
type uint32;
mandatory true;
description
"Remote AS number.";
}
leaf ipv4-remote-asbr-id {
type inet:ipv4-address;
description
"The neighboring ASBR IPv4 address.";
}
leaf ipv6-remote-asbr-id {
Lindem & Qu Expires 2 September 2025 [Page 18]
Internet-Draft OSPF YANG Augments V1 March 2025
type inet:ipv6-address;
description
"The neighboring ASBR IPv6 address.";
}
uses ospf:unknown-tlvs;
}
description
"OSPFv3 Inter-AS-TE-v3 LSA.";
reference
"RFC 5392: TOSPF Extensions in Support of Inter-Autonomous
System (AS) MPLS and GMPLS Traffic Engineering";
}
}
/* Configuration */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:mpls/ospf-te:traffic-eng" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospf')" {
description
"This augment OSPF routing protocol when used";
}
description
"This augments OSPF protocol traffic engineering configuration
with Inter-AS-TE configuration.";
container inter-as-te {
presence "Enable Inter-AS-TE";
description
"OSPFv3 MPLS TE configuration.";
leaf flood-as-wide {
type boolean;
default "false";
description
"Enables as-scoped traffic engineering advertisement. By
default, the inter-as TE link advertisement is limited to
within the single area.";
}
reference
"RFC 5392: OSPF Extensions in Support of Inter-Autonomous
System (AS) MPLS and GMPLS Traffic Engineering";
}
}
/* Database */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
Lindem & Qu Expires 2 September 2025 [Page 19]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augments OSPFv2 routing protocol when used";
}
description
"OSPFv2 type 10 Opaque LSA.";
uses inter-as-te-v2-lsa;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augments OSPFv2 routing protocol when used";
}
description
"OSPFv2 type 11 Opaque LSA.";
uses inter-as-te-v2-lsa;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"OSPFv3 Intra-Area-TE-LSA.";
uses inter-as-te-v3;
}
Lindem & Qu Expires 2 September 2025 [Page 20]
Internet-Draft OSPF YANG Augments V1 March 2025
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"OSPFv3 Intra-Area-TE-LSA.";
uses inter-as-te-v3;
}
}
4. YANG Module for OSPF Two-Part Metric
This document defines a YANG module for OSPF Two-Part Metric feature
as defined in [RFC8042]. It is an augmentation of the OSPF base
model.
Lindem & Qu Expires 2 September 2025 [Page 21]
Internet-Draft OSPF YANG Augments V1 March 2025
module: ietf-ospf-two-part-metric
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:interfaces/ospf:interface:
+--rw two-part-metric
+--rw enable? boolean
+--rw int-input-cost? ospf:ospf-link-metric
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:extended-link-opaque
/ospf:extended-link-tlv:
+--ro network-to-router-metric-sub-tlvs
+--ro net-to-rtr-sub-tlv*
+--ro mt-id? uint8
+--ro mt-metric? uint16
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:te-opaque/ospf:link-tlv:
+--ro network-to-router-te-metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospfv3-te:ospfv3-intra-area-te/ospfv3-te:link-tlv:
+--ro network-to-router-te-metric? uint32
<CODE BEGINS> file "ietf-ospf-two-part-metric@2023-06-27.yang"
module ietf-ospf-two-part-metric {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-two-part-metric";
prefix ospf-two-metric;
import ietf-routing {
prefix "rt";
reference "RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix "ospf";
reference "RFC 9129 - YANG Data Model for the OSPF
Protocol";
}
Lindem & Qu Expires 2 September 2025 [Page 22]
Internet-Draft OSPF YANG Augments V1 March 2025
import ietf-ospfv3-te {
prefix "ospfv3-te";
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yqu@futurewei.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for OSPF Two-Part Metric feature as defined in RFC 8042.
Copyright (c) 2023 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2023-06-27 {
description
"Initial version";
reference
"RFC XXXX: A YANG Data Model for OSPF Two-Part Metric.";
}
identity two-part-metric {
base ospf:informational-capability;
description
"When set, the router is capable of supporting OSPF
two-part metrics.";
reference
Lindem & Qu Expires 2 September 2025 [Page 23]
Internet-Draft OSPF YANG Augments V1 March 2025
"RFC 8042: OSPF Two-Part Metric";
}
/* RFC 8042 */
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/ospf:ospf/"
+ "ospf:areas/ospf:area/ospf:interfaces/ospf:interface" {
when "../../../../../rt:type = 'ospf:ospfv2' or "
+ "../../../../../rt:type = 'ospf:ospfv3'" {
description
"This augments the OSPF interface configuration
when used.";
}
description
"This augments the OSPF protocol interface
configuration with two-part metric.";
container two-part-metric {
when "enum-value(../ospf:interface-type) = 2" {
description
"Two-part metric when link type is multi-access.";
}
leaf enable {
type boolean;
default false;
description
"Enable two-part metric.";
}
leaf int-input-cost {
type ospf:ospf-link-metric;
description
"Link state metric from the two-part-metric network
to this router.";
}
description
"Interface two part metric configuration.";
}
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv" {
when "../../../../../../../../../../../../"
Lindem & Qu Expires 2 September 2025 [Page 24]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Network-to-Router metric sub tlv for OSPFv2 extended link TLV
in type 10 opaque LSA.";
container network-to-router-metric-sub-tlvs {
description "Network-to-Router metric sub TLV.";
list net-to-rtr-sub-tlv {
leaf mt-id {
type uint8;
description "Multi-Topology Identifier (MT-ID).";
}
leaf mt-metric {
type uint16;
description "Network-to-router metric.";
}
description
"Network-to-Router metric sub-TLV.";
}
}
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:te-opaque/"
+ "ospf:link-tlv" {
when "../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Traffic Engineering Network-to-Router Sub-TLV.";
leaf network-to-router-te-metric {
type uint32;
description "Network to Router TE metric.";
reference
"RFC 8042 - OSPF Two-Part Metric";
}
}
Lindem & Qu Expires 2 September 2025 [Page 25]
Internet-Draft OSPF YANG Augments V1 March 2025
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-te:ospfv3-intra-area-te/"
+ "ospfv3-te:link-tlv" {
when "../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Traffic Engineering Network-to-Router Sub-TLV.";
leaf network-to-router-te-metric {
type uint32;
description "Network to Router TE metric.";
reference
"RFC 8042 - OSPF Two-Part Metric";
}
}
}
<CODE ENDS>
5. YANG Module for OSPF Graceful Link Shutdown
This document defines a YANG module for OSPF Graceful Link Shutdown
feature as defined in [RFC8379]. It is an augmentation of the OSPF
base model.
Lindem & Qu Expires 2 September 2025 [Page 26]
Internet-Draft OSPF YANG Augments V1 March 2025
module: ietf-ospf-graceful-link-shutdown
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:interfaces/ospf:interface:
+--rw graceful-link-shutdown
+--rw enable? boolean
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:extended-link-opaque
/ospf:extended-link-tlv:
+--ro graceful-link-shutdown-sub-tlv!
+--ro remote-address-sub-tlv
| +--ro remote-address? inet:ipv4-address
+--ro local-remote-int-id-sub-tlv
+--ro local-int-id? uint32
+--ro remote-int-id? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospfv3-e-lsa:e-router/ospfv3-e-lsa:e-router-tlvs
/ospfv3-e-lsa:link-tlv:
+--ro graceful-link-shutdown-sub-tlv!
<CODE BEGINS> file "ietf-ospf-graceful-link-shutdown@2024-07-01.yang"
module ietf-ospf-graceful-link-shutdown {
yang-version 1.1;
namespace
"urn:ietf:params:xml:ns:yang:ietf-ospf-graceful-link-shutdown";
prefix ospf-grace-linkdown;
import ietf-inet-types {
prefix "inet";
reference "RFC 6991: Common YANG Data Types";
}
import ietf-routing {
prefix "rt";
reference "RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix "ospf";
Lindem & Qu Expires 2 September 2025 [Page 27]
Internet-Draft OSPF YANG Augments V1 March 2025
reference "RFC 9129 - YANG Data Model for the OSPF
Protocol";
}
import ietf-ospfv3-extended-lsa {
prefix "ospfv3-e-lsa";
reference "RFC 9587: YANG Data Model for OSPFv3 Extended Link
State Advertisements (LSAs)";
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for OSPF Graceful Link Shutdown feature as defined
in RFC 8379.
This YANG model conforms to the Network Management
Datastore Architecture (NDMA) as described in RFC 8342.
Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2024-07-01 {
description
"Initial version";
Lindem & Qu Expires 2 September 2025 [Page 28]
Internet-Draft OSPF YANG Augments V1 March 2025
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1.";
}
/* RFC 8379 */
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/ospf:ospf/"
+ "ospf:areas/ospf:area/ospf:interfaces/ospf:interface" {
when "../../../../../rt:type = 'ospf:ospfv2' or "
+ "../../../../../rt:type = 'ospf:ospfv3'" {
description
"This augments the OSPF interface configuration
when used.";
}
description
"This augments the OSPF protocol interface
configuration with segment routing.";
container graceful-link-shutdown {
leaf enable {
type boolean;
default false;
description
"Enable OSPF graceful link shutdown.";
}
description
"OSPF Graceful Link Shutdown.";
}
}
/* Database */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv" {
when "../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
Lindem & Qu Expires 2 September 2025 [Page 29]
Internet-Draft OSPF YANG Augments V1 March 2025
"OSPF graceful link shutdown for OSPFv2 extended link TLV
in type 10 opaque LSA.";
container graceful-link-shutdown-sub-tlv {
presence "Enable graceful link shutdown";
description
"Graceful-Link-Shutdown sub-TLV identifies the link as being
gracefully shutdown.";
}
container remote-address-sub-tlv {
leaf remote-address {
type inet:ipv4-address;
description
"Remote IPv4 address used to identify a particular link
on the remote side.";
}
description
"This sub-TLV specifies the IPv4 address of the remote
endpoint on the link.";
}
container local-remote-int-id-sub-tlv {
leaf local-int-id {
type uint32;
description "Local interface ID.";
}
leaf remote-int-id {
type uint32;
description "Remote interface ID.";
}
description
"This sub-TLV specifies Local and Remote Interface IDs.";
}
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router"
+ "/ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv" {
when "'ospf:../../../../../../../../../"
+ "rt:type' = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
Lindem & Qu Expires 2 September 2025 [Page 30]
Internet-Draft OSPF YANG Augments V1 March 2025
}
container graceful-link-shutdown-sub-tlv {
presence "Enable graceful link shutdown";
description
"Graceful-Link-Shutdown sub-TLV identifies the link as being
gracefully shutdown.";
}
description
"Augment OSPFv3 Area scope router-link TLV.";
}
}
<CODE ENDS>
6. YANG Module for OSPF LLS Extenstion for Local Interface ID
Advertisement
This document defines a YANG module for OSPF Link-Local Signaling
(LLS) Extensions for Local Interface ID Advertisement feature as
defined in [RFC8510]. It is an augmentation of the OSPF base model.
module: ietf-ospf-lls-local-id
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf:
+--rw lls-int-id
+--rw enable? boolean
<CODE BEGINS> file "ietf-ospf-lls-local-id@2024-07-01.yang"
module ietf-ospf-lls-local-id {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-lls-local-id";
prefix ospf-lls-localid;
import ietf-routing {
prefix "rt";
reference "RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix "ospf";
reference "RFC 9129: YANG Data Model for the OSPF
Protocol";
}
organization
"IETF LSR - Link State Routing Working Group";
Lindem & Qu Expires 2 September 2025 [Page 31]
Internet-Draft OSPF YANG Augments V1 March 2025
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for OSPF Link-Local Signaling (LLS) Extensions for Local
Interface ID Advertisement feature as defined in RFC 8510.
Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
revision 2024-07-01 {
description
"Initial version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1.";
}
augment "/rt:routing/rt:control-plane-protocols"
+ "/rt:control-plane-protocol/ospf:ospf" {
when "../rt:type = 'ospf:ospfv2' or "
+ "../rt:type = 'ospf:ospfv3'" {
description
"This augments the OSPF routing protocol when used.";
}
description
"This augments the OSPF protocol configuration
to support LLS extesnions for interfacde ID as
defined in RFC 8510.";
container lls-int-id {
leaf enable {
Lindem & Qu Expires 2 September 2025 [Page 32]
Internet-Draft OSPF YANG Augments V1 March 2025
type boolean;
default false;
description
"Enable LLS to advertise local interface ID.";
}
description
"OSPF LLS Extensions for interface ID.";
}
}
}
<CODE ENDS>
7. YANG Module for OSPF Maximum SID Depth (MSD)
This document defines a model for Signaling Maximum SID Depth (MSD)
Using OSPF [RFC8476]. It is an augmentation of the OSPF base model.
module: ietf-ospf-msd
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:ri-opaque:
+--ro node-msd-tlv
+--ro node-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf:ri-opaque:
+--ro node-msd-tlv
+--ro node-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospf:router-information:
+--ro node-msd-tlv
+--ro node-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
Lindem & Qu Expires 2 September 2025 [Page 33]
Internet-Draft OSPF YANG Augments V1 March 2025
/ospf:version/ospf:ospfv3/ospf:ospfv3/ospf:body
/ospf:router-information:
+--ro node-msd-tlv
+--ro node-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:extended-link-opaque
/ospf:extended-link-tlv:
+--ro link-msd-sub-tlv
+--ro link-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospfv3-e-lsa:e-router/ospfv3-e-lsa:e-router-tlvs
/ospfv3-e-lsa:link-tlv::
+--ro link-msd-sub-tlv
+--ro link-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
<CODE BEGINS> file "ietf-ospf-msd@2025-03-01.yang"
module ietf-ospf-msd {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-msd";
prefix ospf-msd;
import ietf-routing {
prefix rt;
reference "RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix ospf;
reference "RFC 9129: YANG Data Model for the OSPF
Protocol";
}
import ietf-ospfv3-extended-lsa {
prefix ospfv3-e-lsa;
reference "RFC 9587: YANG Data Model for OSPFv3 Extended Link
Lindem & Qu Expires 2 September 2025 [Page 34]
Internet-Draft OSPF YANG Augments V1 March 2025
State Advertisements (LSAs)";
}
import iana-msd-types {
prefix iana-msd-types;
}
organization
"IETF LSR - LSR Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>
Author: Stephane Litkowski
<mailto:slitkows.ietf@gmail.com>
Author: Jeff Tantsura
<jefftant.ietf@gmail.com>
";
description
"The YANG module augments the base OSPF model to
manage different types of MSDs.
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
'MAY', and 'OPTIONAL' in this document are to be interpreted as
described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
they appear in all capitals, as shown here.";
Lindem & Qu Expires 2 September 2025 [Page 35]
Internet-Draft OSPF YANG Augments V1 March 2025
reference "RFC XXXX: YANG Data Model for OSPF MSD.";
revision 2025-03-01 {
description
"Initial Version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1.";
}
grouping node-msd-tlv {
description
"Grouping for node MSD.";
container node-msd-tlv {
list node-msds {
key "msd-type";
leaf msd-type {
type identityref {
base iana-msd-types:msd-base-mpls;
}
description
"MSD-Types";
}
leaf msd-value {
type uint8;
description
"MSD value, in the range of 0-255.";
}
description
"Node MSD is the smallest link MSD supported by
the node.";
}
description
"Node MSD is the number of SIDs supported by a node.";
reference
"RFC 8476: Signaling Maximum SID Depth (MSD) Using OSPF";
}
}
grouping link-msd-sub-tlv {
description
"Link Maximum SID Depth (MSD) grouping for an interface.";
container link-msd-sub-tlv {
list link-msds {
key "msd-type";
leaf msd-type {
type identityref {
base iana-msd-types:msd-base-mpls;
Lindem & Qu Expires 2 September 2025 [Page 36]
Internet-Draft OSPF YANG Augments V1 March 2025
}
description
"MSD-Types";
}
leaf msd-value {
type uint8;
description
"MSD value, in the range of 0-255.";
}
description
"List of link MSDs";
}
description
"Link MSD sub-tlvs.";
}
}
/* Node MSD TLV */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:ri-opaque" {
when "../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Node MSD TLV is an optional TLV of OSPFv2 RI Opaque
LSA (RFC7770) and has a type of 12.";
uses node-msd-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:ri-opaque" {
when "../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
Lindem & Qu Expires 2 September 2025 [Page 37]
Internet-Draft OSPF YANG Augments V1 March 2025
"This augmentation is only valid for OSPFv2.";
}
description
"Node MSD TLV is an optional TLV of OSPFv2 RI Opaque
LSA (RFC7770) and has a type of 12.";
uses node-msd-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information" {
when "../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Node MSD TLV is an optional TLV of OSPFv3 RI Opaque
LSA (RFC7770) and has a type of 12.";
uses node-msd-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information" {
when "../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Node MSD TLV is an optional TLV of OSPFv3 RI Opaque
LSA (RFC7770) and has a type of 12.";
uses node-msd-tlv;
}
/* link MSD sub-tlv */
augment "/rt:routing/"
Lindem & Qu Expires 2 September 2025 [Page 38]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv" {
when "../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Link MSD sub-TLV is an optional sub-TLV of OSPFv2 extended
link TLV as defined in RFC 7684 and has a type of 6.";
uses link-msd-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router/"
+ "ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv" {
when "'ospf:../../../../../../../../"
+ "rt:type' = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
description
"Augment OSPFv3 Area scope router-link TLV.";
uses link-msd-sub-tlv;
}
}
<CODE ENDS>
8. YANG Module for OSPF Application-Specific Link Attributes
This document defines a YANG module for OSPF Application-Specific
Link Attributes feature as defined in [RFC9492]. It is an
augmentation of the OSPF base model.
Lindem & Qu Expires 2 September 2025 [Page 39]
Internet-Draft OSPF YANG Augments V1 March 2025
module: ietf-ospf-link-attr
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf:
+--rw ospf-link-attr
+--rw (link-attr-op-mode)
+--:(legacy)
| +--rw legacy? empty
+--:(transition)
| +--rw transition? empty
+--:(app-specific)
+--rw app-specific? empty
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:extended-link-opaque
/ospf:extended-link-tlv:
+--ro app-specific-link-attr-sub-tlvs
+--ro asla-sub-tlvs* []
+--ro sabm-length? uint8
+--ro udabm-length? uint8
+--ro sabm
| +--ro sabm-bits* identityref
+--ro udabm
+--ro link-attributes-sub-sub-tlvs
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospfv3-e-lsa:e-router/ospfv3-e-lsa:e-router-tlvs
/ospfv3-e-lsa:link-tlv:
+--ro app-specific-link-attr-sub-tlvs
+--ro asla-sub-tlvs* []
+--ro sabm-length? uint8
+--ro udabm-length? uint8
+--ro sabm
| +--ro sabm-bits* identityref
+--ro udabm
+--ro link-attributes-sub-sub-tlvs
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
Lindem & Qu Expires 2 September 2025 [Page 40]
Internet-Draft OSPF YANG Augments V1 March 2025
+--ro value? yang:hex-string
<CODE BEGINS> file "ietf-ospf-link-attr@2025-02-27.yang"
module ietf-ospf-link-attr {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-link-attr";
prefix ospf-link-attr;
import ietf-routing {
prefix "rt";
reference "RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix "ospf";
reference "RFC 9129: YANG Data Model for the OSPF
Protocol";
}
import ietf-ospfv3-extended-lsa {
prefix "ospfv3-e-lsa";
reference "RFC 9587: YANG Data Model for OSPFv3 Extended Link
State Advertisements (LSAs)";
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>
Author: Stephane Litkowski
<mailto:slitkows.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for OSPF application specific link attributes feature
as defined in RFC 9492.
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
Lindem & Qu Expires 2 September 2025 [Page 41]
Internet-Draft OSPF YANG Augments V1 March 2025
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
'MAY', and 'OPTIONAL' in this document are to be interpreted as
described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
they appear in all capitals, as shown here.";
reference "RFC XXXX";
revision 2026-07-02 {
description
"Initial version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1.";
}
identity sabm-bit {
description
"Base identity for SABM bits.";
}
identity rsvp-te-bit {
base sabm-bit;
description
"R bit, RSVP-TE.";
}
identity sr-policy-bit {
base sabm-bit;
description
"S bit, Segment Routing Policy.";
}
identity lfa-bit {
base sabm-bit;
Lindem & Qu Expires 2 September 2025 [Page 42]
Internet-Draft OSPF YANG Augments V1 March 2025
description
"F bit, Loop Free Alternate (LFA). Includes all LFA types.";
}
grouping app-specific-link-attr-sub-tlvs {
description
"OSPF Application-Specific Link Attributes (ASLA) sub-TLV.
The ASLA sub-TLV is a sub-TLV of the OSPFv2 Extended Link
TLV (RFC7684) and OSPFv3 Router-Link TLV (RFC8362).";
container app-specific-link-attr-sub-tlvs {
description "Application-Specific Link Attributes sub-TLV.";
list asla-sub-tlvs {
leaf sabm-length {
type uint8;
description
"Standard Application Identifier Bit Mask Length in
octets.";
}
leaf udabm-length {
type uint8;
description
"User Defined Application Identifier Bit Mask Length
in octets.";
}
container sabm {
leaf-list sabm-bits {
type identityref {
base sabm-bit;
}
description
"SABM bits list. This list will contain
identities for the bits which are set in the
SABA bits.";
}
description
"Standard Application Identifier Bit Mask.";
}
container udabm {
description
"User Defined Application Identifier Bit Mask.
This container is to be augmented by user defined
applications.";
}
container link-attributes-sub-sub-tlvs {
uses ospf:unknown-tlvs;
description
"Link Attributes sub-sub-TLVs.";
Lindem & Qu Expires 2 September 2025 [Page 43]
Internet-Draft OSPF YANG Augments V1 March 2025
}
description
"List of application-Specific Link Attributes sub-TLVs.";
}
}
}
/* Configuration */
augment "/rt:routing/rt:control-plane-protocols"
+ "/rt:control-plane-protocol/ospf:ospf" {
when "../rt:type = 'ospf:ospfv2' or "
+ "../rt:type = 'ospf:ospfv3'" {
description
"This augments the OSPF routing protocol when used.";
}
description
"This augments OSPF protocol configuration
with application-specific link attributes.";
container ospf-link-attr {
choice link-attr-op-mode {
mandatory "true";
leaf legacy {
type empty;
description
"Only send legacy advertisements.";
}
leaf transition {
type empty;
description
"Send both application-specific and legacy
advertisements.";
}
leaf app-specific{
type empty;
description
"Only send application-specific advertisements.";
}
description
"Link attributes mode";
}
description
"Link attributes operation mode.";
}
}
/* Database */
augment "/rt:routing/"
Lindem & Qu Expires 2 September 2025 [Page 44]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"OSPF Application-Specific Link Attributes (ASLA) sub-TLV is
a sub-TLV of OSPFv2 Extended Link TLV (RFC7684).";
uses app-specific-link-attr-sub-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router/"
+ "ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
description
"Augment OSPFv3 Area scope router-link TLV.";
uses app-specific-link-attr-sub-tlvs;
}
}
<CODE ENDS>
9. YANG Module for Advertising Layer 2 Bundle Member Link Attributes in
OSPF
This document defines a YANG Moduel for Advertising Layer 2 Bundle
Member Link Attributes in OSPF as defined in [RFC9356].
Lindem & Qu Expires 2 September 2025 [Page 45]
Internet-Draft OSPF YANG Augments V1 March 2025
module: ietf-ospf-l2-bundle
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:interfaces/ospf:interface:
+--rw l2-mbr-attrs
+--rw l2-mbr-attr* [l2-bdl-mbr-dscpr]
+--rw l2-bdl-mbr-dscpr uint32
+--rw adj-sid? uint32
+--rw lan-adj-sid? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf:extended-link-opaque/ospf:extended-link-tlv:
+--ro l2-bdl-mbr-attr
+--ro l2-bdl-mbrs* []
+--ro l2-bdl-mbr-dscpr? uint32
+--ro adj-sid-sub-tlvs
| +--ro adj-sid-sub-tlv* []
| +--ro adj-sid-flags
| | +--ro flags* identityref
| +--ro mt-id? uint8
| +--ro weight? uint8
| +--ro sid? uint32
+--ro lan-adj-sid-sub-tlv
| +--ro lan-adj-sid-sub-tlv* []
| +--ro lan-adj-sid-flags
| | +--ro flags* identityref
| +--ro mt-id? uint8
| +--ro weight? uint8
| +--ro neighbor-router-id? rt-types:router-id
| +--ro sid? uint32
+--ro app-specific-link-attr-sub-tlvs
+--ro asla-sub-tlvs* []
+--ro sabm-length? uint8
+--ro udabm-length? uint8
+--ro sabm
| +--ro sabm-bits* identityref
+--ro udabm
+--ro link-attributes-sub-sub-tlvs
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
Lindem & Qu Expires 2 September 2025 [Page 46]
Internet-Draft OSPF YANG Augments V1 March 2025
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router
/ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv:
+--ro l2-bdl-mbr-attr
+--ro l2-bdl-mbrs* []
+--ro l2-bdl-mbr-dscpr? uint32
+--ro adj-sid-sub-tlvs
| +--ro adj-sid-sub-tlv* []
| +--ro adj-sid-flags
| | +--ro flags* identityref
| +--ro weight? uint8
| +--ro sid? uint32
+--ro lan-adj-sid-sub-tlvs
| +--ro lan-adj-sid-sub-tlv* []
| +--ro lan-adj-sid-flags
| | +--ro flags* identityref
| +--ro weight? uint8
| +--ro neighbor-router-id? rt-types:router-id
| +--ro sid? uint32
+--ro app-specific-link-attr-sub-tlvs
+--ro asla-sub-tlvs* []
+--ro sabm-length? uint8
+--ro udabm-length? uint8
+--ro sabm
| +--ro sabm-bits* identityref
+--ro udabm
+--ro link-attributes-sub-sub-tlvs
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
<CODE BEGINS> file "ietf-ospf-l2-bundle@2025-02-27.yang"
module ietf-ospf-l2-bundle {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-l2-bundle";
prefix ospf-l2-bundle;
import ietf-routing-types {
prefix rt-types;
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
Lindem & Qu Expires 2 September 2025 [Page 47]
Internet-Draft OSPF YANG Augments V1 March 2025
import ietf-routing {
prefix rt;
reference
"RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-ospf {
prefix ospf;
reference
"RFC 9129: YANG Data Model for the OSPF Protocol";
}
import ietf-ospf-link-attr {
prefix ospf-link-attr;
}
import ietf-ospfv3-extended-lsa {
prefix ospfv3-e-lsa;
reference
"RFC 9587 - YANG Data Model for OSPFv3 Extended LSAs";
}
import ietf-ospf-sr-mpls {
prefix ospf-sr-mpls;
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yqu@futurewei.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>";
description
"This YANG module defines the configuration and operational
state for Advertising Layer 2 Bundle Member Link Attributes
in OSPF as defined in RFC 9356.
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
Lindem & Qu Expires 2 September 2025 [Page 48]
Internet-Draft OSPF YANG Augments V1 March 2025
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2025-02-27 {
description
"Initial version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1";
}
/* Groupings */
grouping ospfv2-member-link-attr-sub-tlvs {
description
"OSPFv2 L2 Bundle Member Attributes sub-TLV (RFC 9356).";
container adj-sid-sub-tlvs {
list adj-sid-sub-tlv {
description
"List of adj-sid sub-tlvs.";
container adj-sid-flags {
leaf-list flags {
type identityref {
base ospf-sr-mpls:adj-sid-flag;
}
description
"Adj-SID sub-TLV flags.";
}
description
"Adj-sid sub-TLV flags.";
}
leaf mt-id {
type uint8;
description
"Multi-topology ID. Topologies range from 0-127 and
return of any other value would indicate an error.";
reference
"RFC 4915 - Multi-Topology (MT) Routing in OSPF";
}
leaf weight {
Lindem & Qu Expires 2 September 2025 [Page 49]
Internet-Draft OSPF YANG Augments V1 March 2025
type uint8;
description
"Weight used for load-balancing.";
}
leaf sid {
type uint32;
description
"Segment Identifier (SID) - A 20 bit label or
an index into the SID/Label space.";
}
}
description
"Adjacency SID sub-tlvs.";
}
container lan-adj-sid-sub-tlv {
description
"LAN Adj-SID optional sub-TLVs.";
list lan-adj-sid-sub-tlv {
description
"List of LAN Adj-SID sub-TLVs.";
container lan-adj-sid-flags {
leaf-list flags {
type identityref {
base ospf-sr-mpls:adj-sid-flag;
}
description
"LAN Adj-SID sub-TLV flags.";
}
description
"LAN Adj-SID sub-TLV flags.";
}
leaf mt-id {
type uint8;
description
"Multi-topology ID. Topologies range from 0-127 and
return of any other value would indicate an error.";
reference
"RFC 4915 - Multi-Topology (MT) Routing in OSPF";
}
leaf weight {
type uint8;
description
"Weight used for load-balancing.";
}
leaf neighbor-router-id {
type rt-types:router-id;
description
"Neighbor router ID.";
Lindem & Qu Expires 2 September 2025 [Page 50]
Internet-Draft OSPF YANG Augments V1 March 2025
}
leaf sid {
type uint32;
description
"Segment Identifier (SID) - A 20 bit label or
an index into the SID/Label space.
If the V-Flag is set to 0 and L-Flag is set to 0:
The SID/Index/Label field is a 4-octet index defining
the offset in the SID/Label space advertised by this
router.
If V-Flag is set to 1 and L-Flag is set to 1: The
SID/Index/Label field is a 3-octet local label where
the 20 rightmost bits are used for encoding the label
value.";
}
}
}
uses ospf-link-attr:app-specific-link-attr-sub-tlvs;
}
grouping ospfv3-member-link-attr-sub-tlvs {
description
"OSPFv3 L2 Bundle Member Attributes sub-TLV (RFC 9356).";
uses ospf-sr-mpls:ospfv3-adj-sid-sub-tlvs;
uses ospf-sr-mpls:ospfv3-lan-adj-sid-sub-tlvs;
uses ospf-link-attr:app-specific-link-attr-sub-tlvs;
}
/* Configuration */
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/ospf:ospf/"
+ "ospf:areas/ospf:area/ospf:interfaces/ospf:interface" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospf')" {
description
"This augments the OSPF routing protocol when used.";
}
description
"This augments the OSPF interface configuration with L2
Bundle Member Attributes.";
container l2-mbr-attrs {
description
"L2 member attributes configuration.";
Lindem & Qu Expires 2 September 2025 [Page 51]
Internet-Draft OSPF YANG Augments V1 March 2025
list l2-mbr-attr {
key l2-bdl-mbr-dscpr;
leaf l2-bdl-mbr-dscpr {
type uint32;
description
"L2 bundle member descriptor: a 4-octet link-local
identifier for the member link.";
}
leaf adj-sid {
type uint32;
description
"Value of the Adj-SID.";
}
leaf lan-adj-sid {
type uint32;
description
"Value of the LAN-Adj-SID.";
}
/* More configuration can be added here */
description
"List of L2 bundle members.";
}
}
}
/* Database */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"OSPFv2 L2 Bundle Member Attributes sub-TLV is
a sub-TLV of OSPFv2 Extended Link TLV (RFC7684).";
container l2-bdl-mbr-attr {
list l2-bdl-mbrs {
description
"List of L2 bundle members.";
Lindem & Qu Expires 2 September 2025 [Page 52]
Internet-Draft OSPF YANG Augments V1 March 2025
leaf l2-bdl-mbr-dscpr {
type uint32;
description
"L2 bundle member descriptor: a 4-octet link-local
identifier for the member link.";
}
uses ospfv2-member-link-attr-sub-tlvs;
}
description
"OSPFv2 L2 Bundle Member Attributes sub-TLV.";
}
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router/"
+ "ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
description
"Augment OSPFv3 Area scope router-link TLV.";
container l2-bdl-mbr-attr {
list l2-bdl-mbrs {
description
"List of L2 bundle members.";
leaf l2-bdl-mbr-dscpr {
type uint32;
description
"L2 bundle member descriptor: a 4-octet link-local
identifier for the member link.";
}
uses ospfv3-member-link-attr-sub-tlvs;
}
description
"OSPFv3 L2 Bundle Member Attributes sub-TLV.";
}
}
}
Lindem & Qu Expires 2 September 2025 [Page 53]
Internet-Draft OSPF YANG Augments V1 March 2025
10. YANG Module for OSPF Flexible Algorithm
This document defines a YANG module for OSPF Flexible Algorithm as
defined in [RFC9350]. It is an augmentation of the OSPF base model.
module: ietf-ospf-flex-algo
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf:
+--rw ospf-flex-algo
+--rw flex-algo* [algo-number]
+--rw algo-number uint8
+--rw advertise-definition? boolean
+--rw admin-groups {te-types:extended-admin-groups,
te-types:named-extended-admin-groups}?
| +--rw exclude-admin-groups* -> /te:te/globals
/named-admin-groups
/named-admin-group/name
| +--rw include-any-admin-groups* -> /te:te/globals
/named-admin-groups
/named-admin-group/name
| +--rw include-all-admin-groups* -> /te:te/globals
/named-admin-groups
/named-admin-group/name
+--rw exclude-srlgs* -> /te:te/globals/named-srlgs
/named-srlg/name
{te-types:named-srlg-groups}?
+--rw fast-reroute? boolean
+--rw metric-type? identityref
+--rw microloop-avoidance? boolean
+--rw prefix-metric!
+--rw priority? uint8
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:interfaces/ospf:interface/ospf:database
/ospf:link-scope-lsa-type/ospf:link-scope-lsas
/ospf:link-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:ri-opaque:
+--ro fad-tlvs
+--ro fad-tlv* []
+--ro flex-algo? uint8
+--ro metric-type? identityref
+--ro calc-type? uint8
+--ro priority? uint8
+--ro fa-ex-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-any-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-all-ag-sub-tlv
Lindem & Qu Expires 2 September 2025 [Page 54]
Internet-Draft OSPF YANG Augments V1 March 2025
| +--ro extended-admin-groups* uint64
+--ro fad-flags-sub-tlv
| +--ro fad-flags* identityref
+--ro fa-ex-srlg-sub-tlv
| +--ro srlgs* uint32
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:ri-opaque:
+--ro fad-tlvs
+--ro fad-tlv* []
+--ro flex-algo? uint8
+--ro metric-type? identityref
+--ro calc-type? uint8
+--ro priority? uint8
+--ro fa-ex-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-any-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-all-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fad-flags-sub-tlv
| +--ro fad-flags* identityref
+--ro fa-ex-srlg-sub-tlv
| +--ro srlgs* uint32
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf:ri-opaque:
+--ro fad-tlvs
+--ro fad-tlv* []
+--ro flex-algo? uint8
+--ro metric-type? identityref
+--ro calc-type? uint8
+--ro priority? uint8
+--ro fa-ex-ag-sub-tlv
Lindem & Qu Expires 2 September 2025 [Page 55]
Internet-Draft OSPF YANG Augments V1 March 2025
| +--ro extended-admin-groups* uint64
+--ro fa-in-any-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-all-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fad-flags-sub-tlv
| +--ro fad-flags* identityref
+--ro fa-ex-srlg-sub-tlv
| +--ro srlgs* uint32
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:interfaces/ospf:interface/ospf:database
/ospf:link-scope-lsa-type/ospf:link-scope-lsas
/ospf:link-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospf:router-information:
+--ro fad-tlvs
+--ro fad-tlv* []
+--ro flex-algo? uint8
+--ro metric-type? identityref
+--ro calc-type? uint8
+--ro priority? uint8
+--ro fa-ex-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-any-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-all-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fad-flags-sub-tlv
| +--ro fad-flags* identityref
+--ro fa-ex-srlg-sub-tlv
| +--ro srlgs* uint32
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospf:router-information:
+--ro fad-tlvs
+--ro fad-tlv* []
Lindem & Qu Expires 2 September 2025 [Page 56]
Internet-Draft OSPF YANG Augments V1 March 2025
+--ro flex-algo? uint8
+--ro metric-type? identityref
+--ro calc-type? uint8
+--ro priority? uint8
+--ro fa-ex-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-any-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-all-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fad-flags-sub-tlv
| +--ro fad-flags* identityref
+--ro fa-ex-srlg-sub-tlv
| +--ro srlgs* uint32
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv3/ospf:ospfv3/ospf:body
/ospf:router-information:
+--ro fad-tlvs
+--ro fad-tlv* []
+--ro flex-algo? uint8
+--ro metric-type? identityref
+--ro calc-type? uint8
+--ro priority? uint8
+--ro fa-ex-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-any-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fa-in-all-ag-sub-tlv
| +--ro extended-admin-groups* uint64
+--ro fad-flags-sub-tlv
| +--ro fad-flags* identityref
+--ro fa-ex-srlg-sub-tlv
| +--ro srlgs* uint32
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:interfaces/ospf:interface/ospf:database
Lindem & Qu Expires 2 September 2025 [Page 57]
Internet-Draft OSPF YANG Augments V1 March 2025
/ospf:link-scope-lsa-type/ospf:link-scope-lsas
/ospf:link-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:extended-prefix-opaque
/ospf:extended-prefix-tlv:
+--ro fapm-sub-tlvs
+--ro fapm-sub-tlv* []
+--ro flex-algo? uint8
+--ro fapm-flags* identityref
+--ro metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:extended-prefix-opaque
/ospf:extended-prefix-tlv:
+--ro fapm-sub-tlvs
+--ro fapm-sub-tlv* []
+--ro flex-algo? uint8
+--ro fapm-flags* identityref
+--ro metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf:extended-prefix-opaque/ospf:extended-prefix-tlv:
+--ro fapm-sub-tlvs
+--ro fapm-sub-tlv* []
+--ro flex-algo? uint8
+--ro fapm-flags* identityref
+--ro metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospfv3-e-lsa:e-inter-area-prefix
/ospfv3-e-lsa:e-inter-prefix-tlvs
/ospfv3-e-lsa:inter-prefix-tlv:
+--ro fapm-sub-tlvs
+--ro fapm-sub-tlv* []
+--ro flex-algo? uint8
+--ro fapm-flags* identityref
+--ro metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv3/ospf:ospfv3/ospf:body
/ospfv3-e-lsa:e-as-external/ospfv3-e-lsa:e-external-tlvs
/ospfv3-e-lsa:external-prefix-tlv:
Lindem & Qu Expires 2 September 2025 [Page 58]
Internet-Draft OSPF YANG Augments V1 March 2025
+--ro fapm-sub-tlvs
+--ro fapm-sub-tlv* []
+--ro flex-algo? uint8
+--ro fapm-flags* identityref
+--ro metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque:
+--ro eia-asbr-opaque
+--ro eia-asbr-tlv
| +--ro asbr-rtr-id? rt-types:router-id
| +--ro faam-sub-tlvs
| | +--ro faam-sub-tlv* []
| | +--ro flex-algo? uint8
| | +--ro metric? uint32
| +--ro unknown-tlvs
| +--ro unknown-tlv* []
| +--ro type? uint16
| +--ro length? uint16
| +--ro value? yang:hex-string
+--ro unknown-tlvs
+--ro unknown-tlv* []
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospfv3-e-lsa:e-inter-area-router
/ospfv3-e-lsa:e-inter-router-tlvs
/ospfv3-e-lsa:inter-router-tlv:
+--ro faam-sub-tlvs
+--ro faam-sub-tlv* []
+--ro flex-algo? uint8
+--ro metric? uint32
<CODE BEGINS> file "ietf-ospf-flex-algo@2024-07-01.yang"
module ietf-ospf-flex-algo {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-flex-algo";
prefix ospf-flex-algo;
import ietf-routing {
prefix rt;
reference "RFC 8349: A YANG Data Model for Routing
Lindem & Qu Expires 2 September 2025 [Page 59]
Internet-Draft OSPF YANG Augments V1 March 2025
Management (NMDA Version)";
}
import ietf-routing-types {
prefix "rt-types";
reference "RFC 8294: Common YANG Data Types for the
Routing Area";
}
import ietf-te-types {
prefix te-types;
reference
"RFC8776: Common YANG Data Types for Traffic Engineering.";
}
import ietf-ospf {
prefix "ospf";
reference "RFC 9129: YANG Data Model for the OSPF
Protocol";
}
import ietf-ospfv3-extended-lsa {
prefix "ospfv3-e-lsa";
reference "RFC 9587: YANG Data Model for OSPFv3 Extended Link
State Advertisements (LSAs)";
}
import ietf-te {
prefix "te";
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>
Author: Stephane Litkowski
<mailto:slitkows.ietf@gmail.com>
";
description
"The YANG module defines the configuration and operational
Lindem & Qu Expires 2 September 2025 [Page 60]
Internet-Draft OSPF YANG Augments V1 March 2025
state for OSPF Flexible Algorithm as defined in RFC 9350.
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
'MAY', and 'OPTIONAL' in this document are to be interpreted as
described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
they appear in all capitals, as shown here.";
reference "RFC XXXX: YANG Data Model for OSPF Flexible Algorithm.";
revision 2024-07-01 {
description
"Initial Version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1.";
}
/* Identities */
identity metric-type {
description
"Base identity for route metric types.";
}
identity igp-metric {
base metric-type;
description
"Identity for the IGP metric type.";
}
Lindem & Qu Expires 2 September 2025 [Page 61]
Internet-Draft OSPF YANG Augments V1 March 2025
identity min-uni-delay {
base metric-type;
description
"Min unidirectional link delay metric type.";
reference
"RFC 7471 - OSPF Traffic Engineering (TE) Metric Extensions";
}
identity te-metric {
base metric-type;
description
"Traffic engineering metric type.";
reference
"RFC 3630 - Traffic Engineering (TE) Extensions to OSPF
Version 2";
}
identity fad-flags {
description
"Base identity for OSPF FAD flags.";
}
identity m-bit {
base fad-flags;
description
"M bit, when set, the fex-algo specific prefix and ASBR
metric MUST be used for inter-area and external prefix
calculation.";
}
identity fapm-flags {
description
"Base identity for OSPF flex-algo prefix metric flags.";
}
identity e-bit {
base fapm-flags;
description
"External metric, if set, the metric specified is a
type 2 external metric.";
}
/* Groupings */
grouping fa-ex-ag-sub-tlv {
container fa-ex-ag-sub-tlv {
leaf-list extended-admin-groups {
type uint64;
description
Lindem & Qu Expires 2 September 2025 [Page 62]
Internet-Draft OSPF YANG Augments V1 March 2025
"Extended administrative group as defined in RFC 7308.";
}
description
"The flex-algo exclude admin group sub-tlv.";
}
description
"The flex-algo exclude admin group sub-tlv.";
}
grouping fa-in-any-ag-sub-tlv {
container fa-in-any-ag-sub-tlv {
leaf-list extended-admin-groups {
type uint64;
description
"Extended administrative group as defined in RFC 7308.";
}
description
"The flex-algo include-any admin group sub-tlv.";
}
description
"The flex-algo include-any admin group sub-tlv.";
}
grouping fa-in-all-ag-sub-tlv {
container fa-in-all-ag-sub-tlv {
leaf-list extended-admin-groups {
type uint64;
description
"Extended administrative group as defined in RFC 7308.";
}
description
"The flex-algo include-all admin group sub-tlv.";
}
description
"The flex-algo include-all admin group sub-tlv.";
}
grouping fad-flags-sub-tlv {
container fad-flags-sub-tlv {
leaf-list fad-flags {
type identityref {
base fad-flags;
}
description
"Flex-algo definition flags list.";
}
description
"OSPF flex-algo definition flags.";
Lindem & Qu Expires 2 September 2025 [Page 63]
Internet-Draft OSPF YANG Augments V1 March 2025
}
description
"The flex-algo definition flags sub-tlv.";
}
grouping fa-ex-srlg-sub-tlv {
container fa-ex-srlg-sub-tlv {
leaf-list srlgs {
type uint32;
description
"SRLG value as defined in RFC 4203.";
}
description
"The flex-algo exclude SRLG sub-tlv.";
}
description
"The flex-algo exclude SRLG sub-tlv.";
}
grouping fad-tlvs {
container fad-tlvs {
list fad-tlv {
leaf flex-algo {
type uint8;
description
"Flex-algo number, value between 128 and 255 inclusive.";
}
leaf metric-type {
type identityref {
base metric-type;
}
description
"Type of metric to be used during the calculation.";
}
leaf calc-type {
type uint8 {
range "0..127";
}
description
"IGP algorithm types, value from 0 to 127 as
defined under 'Interior Gateway Protocol (IGP)
Parameter' by IANA.";
}
leaf priority {
type uint8;
description
"Priority of the advertisement.";
}
Lindem & Qu Expires 2 September 2025 [Page 64]
Internet-Draft OSPF YANG Augments V1 March 2025
uses fa-ex-ag-sub-tlv;
uses fa-in-any-ag-sub-tlv;
uses fa-in-all-ag-sub-tlv;
uses fad-flags-sub-tlv;
uses fa-ex-srlg-sub-tlv;
uses ospf:unknown-tlvs;
description
"List of flex-algo definition TLVs.";
}
description
"OSPF Flexible Algorithm Definition TLV.";
}
description
"OSPF Flexible Algorithm Definition (FAD) TLV.";
}
grouping fapm-sub-tlvs {
container fapm-sub-tlvs {
list fapm-sub-tlv {
leaf flex-algo {
type uint8;
description
"Flex-algo number, value between 128 and 255
inclusive.";
}
leaf-list fapm-flags {
type identityref {
base fapm-flags;
}
description
"Flex-algo prefix metric flags list.";
}
leaf metric {
type uint32;
description
"Prefix metric.";
}
description
"List of flex-algo prefix sub-tlvs.";
}
description
"Flex-algo prefix metric sub-tlvs.";
}
description
"Flexible Algorithm Prefix Metric (FAPM) sub-TLVs.";
}
Lindem & Qu Expires 2 September 2025 [Page 65]
Internet-Draft OSPF YANG Augments V1 March 2025
grouping faam-sub-tlvs {
container faam-sub-tlvs {
list faam-sub-tlv {
leaf flex-algo {
type uint8;
description
"Flex-algo number, value between 128 and 255
inclusive.";
}
leaf metric {
type uint32;
description
"Prefix metric.";
}
description
"List of faam sub-tlvs.";
}
description
"Flexible Algorithm ASBR Metric (FAAM) Sub-TLVs.";
}
description
"Flexible Algorithm ASBR Metric (FAAM) Sub-TLVs.";
}
/* Configurations */
augment "/rt:routing/rt:control-plane-protocols"
+ "/rt:control-plane-protocol/ospf:ospf" {
when "../rt:type = 'ospf:ospfv2' or "
+ "../rt:type = 'ospf:ospfv3'" {
description
"This augments the OSPF routing protocol when used.";
}
description
"This augments OSPF protocol with Flexible
Algorithm.";
container ospf-flex-algo {
list flex-algo {
key "algo-number";
leaf algo-number {
type uint8 {
range "128..255";
}
description
"An identifier in the range 128-255 that's associated
Lindem & Qu Expires 2 September 2025 [Page 66]
Internet-Draft OSPF YANG Augments V1 March 2025
with the Flexible Algorithm Definition.";
}
leaf advertise-definition {
type boolean;
default true;
description
"Enable to advertise the flex-algo definition.";
}
container admin-groups {
if-feature "te-types:extended-admin-groups";
if-feature "te-types:named-extended-admin-groups";
leaf-list exclude-admin-groups {
type leafref {
path "/te:te/te:globals/te:named-admin-groups/"
+ "te:named-admin-group/te:name";
}
description
"Exclude rule used during the flex-algo
path computation.";
}
leaf-list include-any-admin-groups {
type leafref {
path "/te:te/te:globals/te:named-admin-groups/"
+ "te:named-admin-group/te:name";
}
description
"Include-any rule used during the flex-algo
path computation.";
}
leaf-list include-all-admin-groups {
type leafref {
path "/te:te/te:globals/te:named-admin-groups/"
+ "te:named-admin-group/te:name";
}
description
"Include-all rule used during the flex-algo
path computation.";
}
description
"Specify links for the flex-algo path computation.";
}
leaf-list exclude-srlgs {
if-feature "te-types:named-srlg-groups";
type leafref {
path "/te:te/te:globals/te:named-srlgs/te:named-srlg/"
Lindem & Qu Expires 2 September 2025 [Page 67]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "te:name";
}
description
"Shared Risk Link Groups (SRLGs) to be excluded during
the flex-algo path computation.";
}
leaf fast-reroute {
type boolean;
default true;
description
"Enable fast reroute.";
}
leaf metric-type {
type identityref {
base metric-type;
}
description
"Type of metric to be used during the calculation.";
}
leaf microloop-avoidance {
type boolean;
default true;
description
"Enable microloop avoidance.";
}
container prefix-metric {
presence
"Use flex-algo specific prefix metric.";
description
"Use flex-algo prefix metric.";
}
leaf priority {
type uint8;
description
"Priority of the advertisement.";
}
description
"List of flex-algo configurations.";
}
description
"Flexible Algorithm configuration.";
}
Lindem & Qu Expires 2 September 2025 [Page 68]
Internet-Draft OSPF YANG Augments V1 March 2025
}
/* Database */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/"
+ "ospf:interfaces/ospf:interface/ospf:database/"
+ "ospf:link-scope-lsa-type/ospf:link-scope-lsas/"
+ "ospf:link-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:ri-opaque" {
when "../../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo definition TLVs for OSPFv2 type 9 opaque RI LSA.";
uses fad-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:ri-opaque" {
when "../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo definition TLVs for OSPFv2 type 10 opaque RI LSA.";
uses fad-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:ri-opaque" {
Lindem & Qu Expires 2 September 2025 [Page 69]
Internet-Draft OSPF YANG Augments V1 March 2025
when "../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo definition TLVs for OSPFv2 type 11 opaque RI LSA.";
uses fad-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/"
+ "ospf:interfaces/ospf:interface/ospf:database/"
+ "ospf:link-scope-lsa-type/ospf:link-scope-lsas/"
+ "ospf:link-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information" {
when "../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Flex-algo definition TLVs for OSPFv3 Router
Information (RI) LSA.";
uses fad-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information" {
when "../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Flex-algo definition TLVs for OSPFv3 Router
Information (RI) LSA.";
Lindem & Qu Expires 2 September 2025 [Page 70]
Internet-Draft OSPF YANG Augments V1 March 2025
uses fad-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information" {
when "../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Flex-algo definition TLVs for OSPFv3 Router Information LSA.";
uses fad-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/"
+ "ospf:interfaces/ospf:interface/ospf:database/"
+ "ospf:link-scope-lsa-type/ospf:link-scope-lsas/"
+ "ospf:link-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-prefix-opaque/ospf:extended-prefix-tlv" {
when "../../../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo prefix metric sub-TLVs for OSPFv2 extended
prefix TLV in type 9 opaque LSA.";
uses fapm-sub-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-prefix-opaque/ospf:extended-prefix-tlv" {
when "../../../../../../../../../../../../"
Lindem & Qu Expires 2 September 2025 [Page 71]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo prefix metric sub-TLVs for OSPFv2 extended
prefix TLV in type 10 opaque LSA.";
uses fapm-sub-tlvs;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-prefix-opaque/"
+ "ospf:extended-prefix-tlv" {
when "../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo prefix metric sub-TLVs for OSPFv2 extended
prefix TLV in type 11 opaque LSA.";
uses fapm-sub-tlvs;
}
/* Flex-algo prefix metric Sub-TLV in OSPFv3 Inter-Area
Prefix TLV */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-inter-area-prefix/"
+ "ospfv3-e-lsa:e-inter-prefix-tlvs/"
+ "ospfv3-e-lsa:inter-prefix-tlv" {
when "../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
uses fapm-sub-tlvs;
description
"OSPFv3 Area-Scoped Inter-Area Prefix TLV.";
Lindem & Qu Expires 2 September 2025 [Page 72]
Internet-Draft OSPF YANG Augments V1 March 2025
}
/* Flex-algo prefix metric Sub-TLV in OSPFv3 External Prefix TLV */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-as-external/"
+ "ospfv3-e-lsa:e-external-tlvs/"
+ "ospfv3-e-lsa:external-prefix-tlv" {
when "'ospf:../../../../../../../../../"
+ "rt:type' = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3.";
}
uses fapm-sub-tlvs;
description
"OSPFv3 AS-Scoped External Prefix TLV.";
}
/* OSPFv2 Extended Inter-Area ASBR LSA */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque" {
when "../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"OSPFv2 Extended Inter-Area ASBR LSA in type 10
opaque LSA.";
container eia-asbr-opaque {
container eia-asbr-tlv {
leaf asbr-rtr-id {
type rt-types:router-id;
description
"The OSPF Router ID of the ASBR.";
}
uses faam-sub-tlvs;
uses ospf:unknown-tlvs;
description
Lindem & Qu Expires 2 September 2025 [Page 73]
Internet-Draft OSPF YANG Augments V1 March 2025
"EIA-ASBR TLV, used to advertise additional attributes
associated with the reachability of an ASBR.";
}
uses ospf:unknown-tlvs;
description
"OSPFv2 Extended Inter-Area (EIA-ASBR) opaque LSA.";
}
}
/* FAAM Sub-TLV in OSPFv3 Inter-Area-Router TLV */
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-inter-area-router/"
+ "ospfv3-e-lsa:e-inter-router-tlvs/"
+ "ospfv3-e-lsa:inter-router-tlv" {
when "../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3
Inter-Area-Router TLV.";
}
uses faam-sub-tlvs;
description
"OSPFv3 Area-Scoped Inter-Area-Router TLV.";
}
}
<CODE ENDS>
11. YANG Module for OSPF Flexible Algorithms: Bandwidth, Delay, Metrics
and Constraints
This document defines a YANG module for OSPF Flexible Algorithms:
Bandwidth, Delay, Metrics and Constraints
[I-D.ietf-lsr-flex-algo-bw-con]. It is an augmentation of the OSPF
base model and the Flexible Algorithm YANG module .
module: ietf-ospf-flex-algo-bw-con
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:interfaces/ospf:interface:
+--rw generic-metrics
+--rw generic-metric* [metric-type]
+--rw metric-type identityref
+--rw metric-value? uint32
Lindem & Qu Expires 2 September 2025 [Page 74]
Internet-Draft OSPF YANG Augments V1 March 2025
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf
/ospf-flex-algo:ospf-flex-algo/ospf-flex-algo:flex-algo:
+--rw bandwidth-constraints
| +--rw constraint* [constraint-type]
| +--rw constraint-type identityref
| +--rw bandwidth-value? te-types:te-bandwidth
| +--rw threshold? uint8
+--rw (metric-derivation-method)?
| +--:(reference-bandwidth)
| | +--rw reference-bandwidth
| | +--rw reference-bandwidth? rt-types:bandwidth-ieee-float32
| | +--rw granularity-bandwidth? rt-types:bandwidth-ieee-float32
| +--:(bandwidth-thresholds)
| +--rw bandwidth-thresholds
| +--rw bandwidth-threshold* [bandwidth-threshold]
| +--rw bandwidth-threshold rt-types:bandwidth-ieee-float32
| +--rw threshold-metric? uint32
+--rw exclude-min-bw? rt-types:bandwidth-ieee-float32
+--rw exclude-max-delay? rt-types:uint24
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:interfaces/ospf:interface/ospf:database
/ospf:link-scope-lsa-type/ospf:link-scope-lsas
/ospf:link-scope-lsa/ospf:version/ospf:ospfv2
/ospf:ospfv2/ospf:body/ospf:opaque/ospf:te-opaque
/ospf:link-tlv:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf-inter-as-te:inter-as-te-v2/ospf-inter-as-te:link-tlv:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf-inter-as-te:inter-as-te-v2/ospf-inter-as-te:link-tlv:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
Lindem & Qu Expires 2 September 2025 [Page 75]
Internet-Draft OSPF YANG Augments V1 March 2025
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body
/ospf-te:ospfv3-intra-area-te/ospf-te:link-tlv:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body
/ospf-inter-as-te:inter-as-te-v3/ospf-inter-as-te:link-tlv:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas
/ospf:as-scope-lsa/ospf:version/ospf:ospfv3/ospf:ospfv3
/ospf:body/ospf-inter-as-te:inter-as-te-v3
/ospf-inter-as-te:link-tlv:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf:extended-link-opaque/ospf:extended-link-tlv
/ospf-link-attr:app-specific-link-attr-sub-tlvs:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router
Lindem & Qu Expires 2 September 2025 [Page 76]
Internet-Draft OSPF YANG Augments V1 March 2025
/ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv
/ospf-link-attr:app-specific-link-attr-sub-tlvs:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv2/ospf:ospfv2/ospf:body/ospf:opaque
/ospf:extended-link-opaque/ospf:extended-link-tlv
/ospf-l2-bundle:l2-bdl-mbr-attr/ospf-l2-bundle:l2-bdl-mbrs:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router
/ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv
/ospf-l2-bundle:l2-bdl-mbr-attr/ospf-l2-bundle:l2-bdl-mbrs:
+--ro generic-metric-sub-tlvs
+--ro generic-metric-sub-tlv* []
+--ro metric-type? identityref
+--ro value? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:interfaces/ospf:interface/ospf:database
/ospf:link-scope-lsa-type/ospf:link-scope-lsas
/ospf:link-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:ri-opaque
/ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv:
+--ro faemb-sub-tlv
| +--ro min-bandwidth? rt-types:bandwidth-ieee-float32
+--ro faemd-sub-tlv
| +--ro max-link-delay? rt-types:uint24
+--ro fadrb-sub-tlv
| +--ro fadrb-flags* identityref
| +--ro reference-bandwidth? rt-types:bandwidth-ieee-float32
| +--ro granularity-bandwidth? rt-types:bandwidth-ieee-float32
+--ro fadbt-sub-tlv
+--ro fadbt-flags* identityref
+--ro bandwidth-threshold* []
+--ro bandwidth-threshold? rt-types:bandwidth-ieee-float32
+--ro threshold-metric? uint32
Lindem & Qu Expires 2 September 2025 [Page 77]
Internet-Draft OSPF YANG Augments V1 March 2025
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas/ospf:area
/ospf:database/ospf:area-scope-lsa-type/ospf:area-scope-lsas
/ospf:area-scope-lsa/ospf:version/ospf:ospfv2/ospf:ospfv2
/ospf:body/ospf:opaque/ospf:ri-opaque
/ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv:
+--ro faemb-sub-tlv
| +--ro min-bandwidth? rt-types:bandwidth-ieee-float32
+--ro faemd-sub-tlv
| +--ro max-link-delay? rt-types:uint24
+--ro fadrb-sub-tlv
| +--ro fadrb-flags* identityref
| +--ro reference-bandwidth? rt-types:bandwidth-ieee-float32
| +--ro granularity-bandwidth? rt-types:bandwidth-ieee-float32
+--ro fadbt-sub-tlv
+--ro fadbt-flags* identityref
+--ro bandwidth-threshold* []
+--ro bandwidth-threshold? rt-types:bandwidth-ieee-float32
+--ro threshold-metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv2/ospf:ospfv2/ospf:body
/ospf:opaque/ospf:ri-opaque/ospf-flex-algo:fad-tlvs
/ospf-flex-algo:fad-tlv:
+--ro faemb-sub-tlv
| +--ro min-bandwidth? rt-types:bandwidth-ieee-float32
+--ro faemd-sub-tlv
| +--ro max-link-delay? rt-types:uint24
+--ro fadrb-sub-tlv
| +--ro fadrb-flags* identityref
| +--ro reference-bandwidth? rt-types:bandwidth-ieee-float32
| +--ro granularity-bandwidth? rt-types:bandwidth-ieee-float32
+--ro fadbt-sub-tlv
+--ro fadbt-flags* identityref
+--ro bandwidth-threshold* []
+--ro bandwidth-threshold? rt-types:bandwidth-ieee-float32
+--ro threshold-metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:interfaces/ospf:interface/ospf:database
/ospf:link-scope-lsa-type/ospf:link-scope-lsas
/ospf:link-scope-lsa/ospf:version/ospf:ospfv3
/ospf:ospfv3/ospf:body/ospf:router-information
/ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv:
+--ro faemb-sub-tlv
| +--ro min-bandwidth? rt-types:bandwidth-ieee-float32
+--ro faemd-sub-tlv
Lindem & Qu Expires 2 September 2025 [Page 78]
Internet-Draft OSPF YANG Augments V1 March 2025
| +--ro max-link-delay? rt-types:uint24
+--ro fadrb-sub-tlv
| +--ro fadrb-flags* identityref
| +--ro reference-bandwidth? rt-types:bandwidth-ieee-float32
| +--ro granularity-bandwidth? rt-types:bandwidth-ieee-float32
+--ro fadbt-sub-tlv
+--ro fadbt-flags* identityref
+--ro bandwidth-threshold* []
+--ro bandwidth-threshold? rt-types:bandwidth-ieee-float32
+--ro threshold-metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:areas
/ospf:area/ospf:database/ospf:area-scope-lsa-type
/ospf:area-scope-lsas/ospf:area-scope-lsa/ospf:version
/ospf:ospfv3/ospf:ospfv3/ospf:body/ospf:router-information
/ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv:
+--ro faemb-sub-tlv
| +--ro min-bandwidth? rt-types:bandwidth-ieee-float32
+--ro faemd-sub-tlv
| +--ro max-link-delay? rt-types:uint24
+--ro fadrb-sub-tlv
| +--ro fadrb-flags* identityref
| +--ro reference-bandwidth? rt-types:bandwidth-ieee-float32
| +--ro granularity-bandwidth? rt-types:bandwidth-ieee-float32
+--ro fadbt-sub-tlv
+--ro fadbt-flags* identityref
+--ro bandwidth-threshold* []
+--ro bandwidth-threshold? rt-types:bandwidth-ieee-float32
+--ro threshold-metric? uint32
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/ospf:ospf/ospf:database
/ospf:as-scope-lsa-type/ospf:as-scope-lsas/ospf:as-scope-lsa
/ospf:version/ospf:ospfv3/ospf:ospfv3/ospf:body
/ospf:router-information/ospf-flex-algo:fad-tlvs
/ospf-flex-algo:fad-tlv:
+--ro faemb-sub-tlv
| +--ro min-bandwidth? rt-types:bandwidth-ieee-float32
+--ro faemd-sub-tlv
| +--ro max-link-delay? rt-types:uint24
+--ro fadrb-sub-tlv
| +--ro fadrb-flags* identityref
| +--ro reference-bandwidth? rt-types:bandwidth-ieee-float32
| +--ro granularity-bandwidth? rt-types:bandwidth-ieee-float32
+--ro fadbt-sub-tlv
+--ro fadbt-flags* identityref
+--ro bandwidth-threshold* []
+--ro bandwidth-threshold? rt-types:bandwidth-ieee-float32
+--ro threshold-metric? uint32
Lindem & Qu Expires 2 September 2025 [Page 79]
Internet-Draft OSPF YANG Augments V1 March 2025
<CODE BEGINS> file "ietf-ospf-flex-algo-bw-con@2025-02-27.yang"
module ietf-ospf-flex-algo-bw-con {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospf-flex-algo-bw-con";
prefix ospf-flex-algo-bw-con;
import ietf-routing {
prefix rt;
reference "RFC 8349: A YANG Data Model for Routing
Management (NMDA Version)";
}
import ietf-routing-types {
prefix rt-types;
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
import ietf-te-types {
prefix te-types;
reference
"RFC8776: Common YANG Data Types for Traffic Engineering.";
}
import ietf-ospf {
prefix ospf;
reference
"RFC 9129: YANG Data Model for the OSPF Protocol";
}
import ietf-ospfv3-extended-lsa {
prefix ospfv3-e-lsa;
reference
"RFC 9587: YANG Data Model for OSPFv3 Extended Link
State Advertisements (LSAs)";
}
import ietf-ospf-te {
prefix ospf-te;
}
import ietf-ospf-flex-algo {
prefix ospf-flex-algo;
reference
"RFC XXXX";
}
import ietf-ospf-link-attr {
Lindem & Qu Expires 2 September 2025 [Page 80]
Internet-Draft OSPF YANG Augments V1 March 2025
prefix ospf-link-attr;
}
import ietf-ospf-inter-as-te {
prefix ospf-inter-as-te;
}
import ietf-ospf-l2-bundle {
prefix ospf-l2-bundle;
}
organization
"IETF LSR - Link State Routing Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:lsr@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.ietf@gmail.com>
Author: Acee Lindem
<mailto:acee.ietf@gmail.com>
";
description
"The YANG module defines the configuration and operational
state for OSPF protocol as defined in
draft-ietf-lsr-flex-algo-bw-con, IGP Flexible Algorithms:
Bandwidth, Delay, Metrics and Constraints
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
Copyright (c) 2025 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
Lindem & Qu Expires 2 September 2025 [Page 81]
Internet-Draft OSPF YANG Augments V1 March 2025
'MAY', and 'OPTIONAL' in this document are to be interpreted as
described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
they appear in all capitals, as shown here.";
reference "RFC XXXX: YANG Data Model for OSPF Flexible Algorithm.";
revision 2025-02-27 {
description
"Initial Version";
reference
"RFC XXXX: OSPF YANG Model Augmentations for Additional
Features - Version 1.";
}
/* Identities */
identity bandwidth-metric {
base ospf-flex-algo:metric-type;
description
"Bandwidth metric type.";
}
identity bandwidth-constraint-type {
description
"Base identity for bandwidth constraint types.";
}
identity min-bw {
base bandwidth-constraint-type;
description
"Minimum bandwidth constraint.";
}
identity max-bw {
base bandwidth-constraint-type;
description
"Maximum bandwidth constraint.";
}
identity fadrb-flags {
description
"Base identity for OSPF Flexible Algorithm Definition
Reference Bandwidth sub-tlv flags.";
}
identity g-bit {
base fadrb-flags;
Lindem & Qu Expires 2 September 2025 [Page 82]
Internet-Draft OSPF YANG Augments V1 March 2025
description
"G bit, when set, interface group mode MUST be used to
derive total link bandwidth.";
}
identity fadbt-flags {
description
"Base identity for OSPF Flexible Algorithm Definition
Reference Bandwidth sub-tlv flags.";
}
identity gp-bit {
base fadbt-flags;
description
"G bit, when set, interface group mode MUST be used to
derive total link bandwidth.";
}
/* Groupings */
grouping bandwidth-constraint {
description
"Grouping for bandwidth constraints in Flex-Algo.";
container bandwidth-constraints {
list constraint {
key "constraint-type";
description
"List of bandwidth constraints for the Flex-Algo.";
leaf constraint-type {
type identityref {
base bandwidth-constraint-type;
}
description
"Type of bandwidth constraint (e.g., min-bw, max-bw).";
}
leaf bandwidth-value {
type te-types:te-bandwidth;
description
"Bandwidth value for the constraint.";
}
leaf threshold {
type uint8 {
range "1..100";
}
units "percent";
description
"Threshold percentage for triggering re-optimization.";
}
}
Lindem & Qu Expires 2 September 2025 [Page 83]
Internet-Draft OSPF YANG Augments V1 March 2025
description
"Bandwidth constraints configuration for flex-algo.";
}
}
grouping generic-metric-sub-tlv {
container generic-metric-sub-tlvs {
list generic-metric-sub-tlv {
leaf metric-type {
type identityref {
base ospf-flex-algo:metric-type;
}
description
"Type of metric to be used during the calculation.";
}
leaf value {
type uint32;
description
"A 32-bit unsigned integer representing the metric value.";
}
description
"The list of generic metric sub-tlvs.";
}
description
"The generic metric sub-tlv.";
}
description
"The grouping for generic metric sub-tlv.";
}
grouping faemb-sub-tlv {
container faemb-sub-tlv {
leaf min-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"A 32-bit field specifying the link bandwidth in IEEE
floating point format (IEEE754). The units are
bytes-per-second.";
}
description
"Flex-algo Exclude Minimum Bandwidth sub-tlv (FAEMB).";
}
description
"Grouping for FAEMB sub-tlv.";
}
grouping faemd-sub-tlv {
container faemd-sub-tlv {
Lindem & Qu Expires 2 September 2025 [Page 84]
Internet-Draft OSPF YANG Augments V1 March 2025
leaf max-link-delay {
type rt-types:uint24;
description
"A 24-bit field specifying the maximum link delay in
microseconds.";
}
description
"The Flex-algo Exclude Maximum Delay sub-tlv (FAEMD).";
}
description
"Grouping for FAEMD sub-tlv.";
}
grouping fadrb-sub-tlv {
container fadrb-sub-tlv {
leaf-list fadrb-flags {
type identityref {
base fadrb-flags;
}
description
"Flex-algo definition reference bandwidth sub-tlv
flags list.";
}
leaf reference-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"A 32-bit field specifying the link bandwidth in IEEE
floating point format (IEEE754). The units are
bytes-per-second.";
}
leaf granularity-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"A 32-bit field specifying the link bandwidth in IEEE
floating point format (IEEE754). The units are
bytes-per-second.";
}
description
"The Flex-algo Reference Bandwidth sub-tlv (FAEMD).";
}
description
"Grouping for FADRB sub-tlv.";
}
grouping fadbt-sub-tlv {
container fadbt-sub-tlv {
leaf-list fadbt-flags {
type identityref {
Lindem & Qu Expires 2 September 2025 [Page 85]
Internet-Draft OSPF YANG Augments V1 March 2025
base fadbt-flags;
}
description
"Flex-algo definition bandwidth thresholds sub-tlv
flags list.";
}
list bandwidth-threshold {
leaf bandwidth-threshold {
type rt-types:bandwidth-ieee-float32;
description
"Maximum link bandwidth. A 32-bit field specifying the
link bandwidth in IEEE floating point format (IEEE754).
The units are bytes-per-second.";
}
leaf threshold-metric {
type uint32;
description
"Metric value range 1 - 4,294,967,296 (0xFFFFFFFF).";
}
description
"List of bandwidth thresholds and metrics.";
}
description
"The Flex-algo Bandwidth Thresholds sub-tlv (FADBT).";
}
description
"Grouping for FADBT sub-tlv.";
}
/* Configurations */
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/ospf:ospf/"
+ "ospf:areas/ospf:area/ospf:interfaces/ospf:interface" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospf')" {
description
"This augments the OSPF interface configuration
when used.";
}
description
"This augments the OSPF protocol interface
configuration with generic metric configuration.";
container generic-metrics {
list generic-metric {
key "metric-type";
leaf metric-type {
Lindem & Qu Expires 2 September 2025 [Page 86]
Internet-Draft OSPF YANG Augments V1 March 2025
type identityref {
base ospf-flex-algo:metric-type;
}
description
"Type of metric to be used during the calculation.";
}
leaf metric-value {
type uint32;
description
"Metric value, range is from 0 to 0xFFFFFFFF.";
}
description
"Interface generic metric configuration per metric-type.";
}
description
"Interface generic metric configuration.";
}
}
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/ospf:ospf/"
+ "ospf-flex-algo:ospf-flex-algo/ospf-flex-algo:flex-algo" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospf')" {
description
"This augments the OSPF routing protocol when used.";
}
description
"This augments OSPF protocol Flexible Algorithm with
bandwidth constraints.";
uses bandwidth-constraint;
choice metric-derivation-method {
description
"Choice of automatic metric derivation methods.";
container reference-bandwidth {
description
"Metric is inversely proportional to the link
bandwidth.";
leaf reference-bandwidth {
type rt-types:bandwidth-ieee-float32;
description
"A 32-bit field specifying the link bandwidth in IEEE
floating point format (IEEE754). The units are
bytes-per-second.";
}
leaf granularity-bandwidth {
Lindem & Qu Expires 2 September 2025 [Page 87]
Internet-Draft OSPF YANG Augments V1 March 2025
type rt-types:bandwidth-ieee-float32;
description
"A 32-bit field specifying the link bandwidth in IEEE
floating point format (IEEE754). The units are
bytes-per-second.";
}
}
container bandwidth-thresholds {
description
"Pre-define non-proportional metric values from the varying
ranges of link bandwidth.";
list bandwidth-threshold {
key bandwidth-threshold;
leaf bandwidth-threshold {
type rt-types:bandwidth-ieee-float32;
description
"Maximum link bandwidth. A 32-bit field specifying the
link bandwidth in IEEE floating point format (IEEE754).
The units are bytes-per-second.";
}
leaf threshold-metric {
type uint32;
description
"Metric value range 1 - 4,294,967,296 (0xFFFFFFFF).";
}
description
"List of bandwidth thresholds and metrics.";
}
}
}
leaf exclude-min-bw {
type rt-types:bandwidth-ieee-float32;
description
"A 32-bit field specifying the link bandwidth in IEEE
floating point format (IEEE754). The units are
bytes-per-second.";
}
leaf exclude-max-delay {
type rt-types:uint24;
description
"A 24-bit field specifying the maximum link delay in
microseconds.";
}
}
/* Database */
Lindem & Qu Expires 2 September 2025 [Page 88]
Internet-Draft OSPF YANG Augments V1 March 2025
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/"
+ "ospf:interfaces/ospf:interface/ospf:database/"
+ "ospf:link-scope-lsa-type/ospf:link-scope-lsas/"
+ "ospf:link-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:te-opaque/"
+ "ospf:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"TE link TLV of OSPF TE LSA.";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf-inter-as-te:inter-as-te-v2/"
+ "ospf-inter-as-te:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Area scope TE link TLV of OSPFv2 Inter-AS-TE-v2 LSA.";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf-inter-as-te:inter-as-te-v2/"
+ "ospf-inter-as-te:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
Lindem & Qu Expires 2 September 2025 [Page 89]
Internet-Draft OSPF YANG Augments V1 March 2025
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augment OSPFv2 routing protocol when used";
}
description
"AS scope TE link TLV of OSPFv2 Inter-AS-TE-v2 LSA.";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf-te:ospfv3-intra-area-te/"
+ "ospf-te:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"TE Link TLV of OSPFv3 Intra-Area-TE-LSA.";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf-inter-as-te:inter-as-te-v3/"
+ "ospf-inter-as-te:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Area scope TE Link TLV of OSPFv3 Inter-AS-TE-v3 LSA.";
uses generic-metric-sub-tlv;
}
Lindem & Qu Expires 2 September 2025 [Page 90]
Internet-Draft OSPF YANG Augments V1 March 2025
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf-inter-as-te:inter-as-te-v3/"
+ "ospf-inter-as-te:link-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"AS scope TE Link TLV of OSPFv3 Inter-AS-TE-v3 LSA.";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv/"
+ "ospf-link-attr:app-specific-link-attr-sub-tlvs" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"OSPF Application-Specific Link Attributes (ASLA) sub-TLV is
a sub-TLV of OSPFv2 Extended Link TLV (RFC7684).";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router/"
+ "ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv/"
+ "ospf-link-attr:app-specific-link-attr-sub-tlvs" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
Lindem & Qu Expires 2 September 2025 [Page 91]
Internet-Draft OSPF YANG Augments V1 March 2025
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
description
"Application-Specific Link Attributes (ASLA) sub-TLV (RFC9492)
of the OSPFv3 Router-Link TLV (RFC8362).";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/"
+ "ospf:extended-link-opaque/ospf:extended-link-tlv/"
+ "ospf-l2-bundle:l2-bdl-mbr-attr/"
+ "ospf-l2-bundle:l2-bdl-mbrs" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"OSPFv2 L2 Bundle Member Attributes sub-TLV is
a sub-TLV of OSPFv2 Extended Link TLV (RFC7684).";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-router/"
+ "ospfv3-e-lsa:e-router-tlvs/ospfv3-e-lsa:link-tlv/"
+ "ospf-l2-bundle:l2-bdl-mbr-attr/"
+ "ospf-l2-bundle:l2-bdl-mbrs" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
Lindem & Qu Expires 2 September 2025 [Page 92]
Internet-Draft OSPF YANG Augments V1 March 2025
description
"OSPFv3 L2 Bundle Member Attributes sub-TLV in
OSPFv3 Area scope router-link TLV.";
uses generic-metric-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/"
+ "ospf:interfaces/ospf:interface/ospf:database/"
+ "ospf:link-scope-lsa-type/ospf:link-scope-lsas/"
+ "ospf:link-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:ri-opaque/"
+ "ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo definition TLVs for OSPFv2 type 9 opaque RI LSA.";
uses faemb-sub-tlv;
uses faemd-sub-tlv;
uses fadrb-sub-tlv;
uses fadbt-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:ri-opaque/"
+ "ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo definition TLVs for OSPFv2 type 10 opaque RI LSA.";
Lindem & Qu Expires 2 September 2025 [Page 93]
Internet-Draft OSPF YANG Augments V1 March 2025
uses faemb-sub-tlv;
uses faemd-sub-tlv;
uses fadrb-sub-tlv;
uses fadbt-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv2/"
+ "ospf:ospfv2/ospf:body/ospf:opaque/ospf:ri-opaque/"
+ "ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv2')" {
description
"This augmentation is only valid for OSPFv2.";
}
description
"Flex-algo definition TLVs for OSPFv2 type 11 opaque RI LSA.";
uses faemb-sub-tlv;
uses faemd-sub-tlv;
uses fadrb-sub-tlv;
uses fadbt-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/ospf:area/"
+ "ospf:interfaces/ospf:interface/ospf:database/"
+ "ospf:link-scope-lsa-type/ospf:link-scope-lsas/"
+ "ospf:link-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information/"
+ "ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Flex-algo definition TLVs for OSPFv3 Router
Information (RI) LSA.";
uses faemb-sub-tlv;
uses faemd-sub-tlv;
uses fadrb-sub-tlv;
Lindem & Qu Expires 2 September 2025 [Page 94]
Internet-Draft OSPF YANG Augments V1 March 2025
uses fadbt-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:areas/"
+ "ospf:area/ospf:database/"
+ "ospf:area-scope-lsa-type/ospf:area-scope-lsas/"
+ "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information/"
+ "ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Flex-algo definition TLVs for OSPFv3 Router
Information (RI) LSA.";
uses faemb-sub-tlv;
uses faemd-sub-tlv;
uses fadrb-sub-tlv;
uses fadbt-sub-tlv;
}
augment "/rt:routing/"
+ "rt:control-plane-protocols/rt:control-plane-protocol/"
+ "ospf:ospf/ospf:database/"
+ "ospf:as-scope-lsa-type/ospf:as-scope-lsas/"
+ "ospf:as-scope-lsa/ospf:version/ospf:ospfv3/"
+ "ospf:ospfv3/ospf:body/ospf:router-information/"
+ "ospf-flex-algo:fad-tlvs/ospf-flex-algo:fad-tlv" {
when "derived-from(/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/rt:type, 'ospf:ospfv3')" {
description
"This augmentation is only valid for OSPFv3.";
}
description
"Flex-algo definition TLVs for OSPFv3 Router Information LSA.";
uses faemb-sub-tlv;
uses faemd-sub-tlv;
uses fadrb-sub-tlv;
uses fadbt-sub-tlv;
}
}
Lindem & Qu Expires 2 September 2025 [Page 95]
Internet-Draft OSPF YANG Augments V1 March 2025
12. Security Considerations
The YANG modules specified in this document define a schema for data
that is designed to be accessed via network management protocols such
as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer
is the secure transport layer, and the mandatory-to-implement secure
transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer
is HTTPS, and the mandatory-to-implement secure transport is TLS
[RFC5246].
The NETCONF access control model [RFC6536] provides the means to
restrict access for particular NETCONF or RESTCONF users to a pre-
configured subset of all available NETCONF or RESTCONF protocol
operations and content.
There are a number of data nodes defined in the modules that are
writable/creatable/deletable (i.e., config true, which is the
default). These data nodes may be considered sensitive or vulnerable
in some network environments. Write operations (e.g., edit-config)
to these data nodes without proper protection can have a negative
effect on network operations.
Some of the readable data nodes in the modules may be considered
sensitive or vulnerable in some network environments. It is thus
important to control read access (e.g., via get, get-config, or
notification) to these data nodes. The exposure of the Link State
Database (LSDB) will expose the detailed topology of the network.
This may be undesirable since both due to the fact that exposure may
facilitate other attacks. Additionally, network operators may
consider their topologies to be sensitive confidential data.
13. IANA Considerations
This document registers URIs in the IETF XML registry [RFC3688].
Following the format in [RFC3688], the following registrations is
requested to be made:
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-te
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-inter-as-te
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-two-metric
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
Lindem & Qu Expires 2 September 2025 [Page 96]
Internet-Draft OSPF YANG Augments V1 March 2025
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-grace-linkdown
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-lls-localid
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-msd
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-l2-bundle
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-link-attr
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-flex-algo
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
URI: urn:ietf:params:xml:ns:yang:ietf-ospf-flex-algo-bw-con
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
This document registers the YANG modules in the YANG Module Names
registry [RFC6020].
name: ietf-ospf-te
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-te
prefix: ospf-te
reference: RFC XXXX
name: ietf-ospf-inter-as-te
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-inter-as-te
prefix: ospf-inter-as-te
reference: RFC XXXX
name: ietf-ospf-two-metric
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-two-metric
prefix: ospf-two-metric
reference: RFC XXXX
Lindem & Qu Expires 2 September 2025 [Page 97]
Internet-Draft OSPF YANG Augments V1 March 2025
name: ietf-ospf-grace-linkdown
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-grace-linkdown
prefix: ospf-grace-linkdown
reference: RFC XXXX
name: ietf-ospf-lls-localid
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-lls-localid
prefix: ospf-lls-localid
reference: RFC XXXX
name: ietf-ospf-msd
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-msd
prefix: ospf-msd
reference: RFC XXXX
name: ietf-ospf-l2-bundle
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-l2-bundle
prefix: ospf-l2-bundle
reference: RFC XXXX
name: ietf-ospf-link-attr
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-link-attr
prefix: ospf-link-attr
reference: RFC XXXX
name: ietf-ospf-flex-algo
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-flex-algo
prefix: ospf-flex-algo
reference: RFC XXXX
name: ietf-ospf-flex-algo-bw-con
namespace: urn:ietf:params:xml:ns:yang:ietf-ospf-flex-algo-bw-con
prefix: ospf-flex-algo-bw-con
reference: RFC XXXX
14. Acknowledgements
This document was produced using Marshall Rose's xml2rfc tool.
The YANG model was developed using the suite of YANG tools written
and maintained by numerous authors.
15. Normative References
[I-D.ietf-lsr-flex-algo-bw-con]
Hegde, S., Britto, W., Shetty, R., Decraene, B., Psenak,
P., and T. Li, "IGP Flexible Algorithms: Bandwidth, Delay,
Metrics and Constraints", Work in Progress, Internet-
Lindem & Qu Expires 2 September 2025 [Page 98]
Internet-Draft OSPF YANG Augments V1 March 2025
Draft, draft-ietf-lsr-flex-algo-bw-con-22, 13 February
2025, <https://datatracker.ietf.org/doc/html/draft-ietf-
lsr-flex-algo-bw-con-22>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC3630] Katz, D., Kompella, K., and D. Yeung, "Traffic Engineering
(TE) Extensions to OSPF Version 2", RFC 3630,
DOI 10.17487/RFC3630, September 2003,
<https://www.rfc-editor.org/info/rfc3630>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC5246] Dierks, T. and E. Rescorla, "The Transport Layer Security
(TLS) Protocol Version 1.2", RFC 5246,
DOI 10.17487/RFC5246, August 2008,
<https://www.rfc-editor.org/info/rfc5246>.
[RFC5329] Ishiguro, K., Manral, V., Davey, A., and A. Lindem, Ed.,
"Traffic Engineering Extensions to OSPF Version 3",
RFC 5329, DOI 10.17487/RFC5329, September 2008,
<https://www.rfc-editor.org/info/rfc5329>.
[RFC5392] Chen, M., Zhang, R., and X. Duan, "OSPF Extensions in
Support of Inter-Autonomous System (AS) MPLS and GMPLS
Traffic Engineering", RFC 5392, DOI 10.17487/RFC5392,
January 2009, <https://www.rfc-editor.org/info/rfc5392>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure
Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011,
<https://www.rfc-editor.org/info/rfc6242>.
Lindem & Qu Expires 2 September 2025 [Page 99]
Internet-Draft OSPF YANG Augments V1 March 2025
[RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration
Protocol (NETCONF) Access Control Model", RFC 6536,
DOI 10.17487/RFC6536, March 2012,
<https://www.rfc-editor.org/info/rfc6536>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016,
<https://www.rfc-editor.org/info/rfc7950>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/info/rfc8040>.
[RFC8042] Zhang, Z., Wang, L., and A. Lindem, "OSPF Two-Part
Metric", RFC 8042, DOI 10.17487/RFC8042, December 2016,
<https://www.rfc-editor.org/info/rfc8042>.
[RFC8349] Lhotka, L., Lindem, A., and Y. Qu, "A YANG Data Model for
Routing Management (NMDA Version)", RFC 8349,
DOI 10.17487/RFC8349, March 2018,
<https://www.rfc-editor.org/info/rfc8349>.
[RFC8379] Hegde, S., Sarkar, P., Gredler, H., Nanduri, M., and L.
Jalil, "OSPF Graceful Link Shutdown", RFC 8379,
DOI 10.17487/RFC8379, May 2018,
<https://www.rfc-editor.org/info/rfc8379>.
[RFC8476] Tantsura, J., Chunduri, U., Aldrin, S., and P. Psenak,
"Signaling Maximum SID Depth (MSD) Using OSPF", RFC 8476,
DOI 10.17487/RFC8476, December 2018,
<https://www.rfc-editor.org/info/rfc8476>.
[RFC8510] Psenak, P., Ed., Talaulikar, K., Henderickx, W., and P.
Pillay-Esnault, "OSPF Link-Local Signaling (LLS)
Extensions for Local Interface ID Advertisement",
RFC 8510, DOI 10.17487/RFC8510, January 2019,
<https://www.rfc-editor.org/info/rfc8510>.
[RFC9129] Yeung, D., Qu, Y., Zhang, Z., Chen, I., and A. Lindem,
"YANG Data Model for the OSPF Protocol", RFC 9129,
DOI 10.17487/RFC9129, October 2022,
<https://www.rfc-editor.org/info/rfc9129>.
[RFC9350] Psenak, P., Ed., Hegde, S., Filsfils, C., Talaulikar, K.,
and A. Gulko, "IGP Flexible Algorithm", RFC 9350,
DOI 10.17487/RFC9350, February 2023,
<https://www.rfc-editor.org/info/rfc9350>.
Lindem & Qu Expires 2 September 2025 [Page 100]
Internet-Draft OSPF YANG Augments V1 March 2025
[RFC9356] Talaulikar, K., Ed. and P. Psenak, "Advertising Layer 2
Bundle Member Link Attributes in OSPF", RFC 9356,
DOI 10.17487/RFC9356, January 2023,
<https://www.rfc-editor.org/info/rfc9356>.
[RFC9492] Psenak, P., Ed., Ginsberg, L., Henderickx, W., Tantsura,
J., and J. Drake, "OSPF Application-Specific Link
Attributes", RFC 9492, DOI 10.17487/RFC9492, October 2023,
<https://www.rfc-editor.org/info/rfc9492>.
Authors' Addresses
Acee Lindem
LabN Consulting, LLC
301 Midenhall Way
Cary, NC 27513
Email: acee.ietf@gmail.com
Yingzhen Qu
Futurewei Technologies
United States of America
Email: yingzhen.ietf@gmail.com
Lindem & Qu Expires 2 September 2025 [Page 101]