Internet DRAFT - draft-ietf-lsr-ospf-yang-augmentation-v1
draft-ietf-lsr-ospf-yang-augmentation-v1
Internet A. Lindem
Internet-Draft Cisco Systems
Intended status: Standards Track Y. Qu
Expires: 6 July 2023 Futurewei
2 January 2023
OSPF YANG Model Augmentations for Additional Features - Version 1
draft-ietf-lsr-ospf-yang-augmentation-v1-09
Abstract
This document defines YANG data modules augmenting the IETF OSPF YANG
model to provide support for Traffic Engineering Extensions to OSPF
Version 3 as defined in RF 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
8920, and OSPF Flexible Algorithm.
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 6 July 2023.
Copyright Notice
Copyright (c) 2023 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
and restrictions with respect to this document. Code Components
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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 Version
3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. YANG Module for OSPF Two-Part Metric . . . . . . . . . . . . 8
4. YANG Module for OSPF Graceful Link Shutdown . . . . . . . . . 13
5. YANG Module for OSPF LLS Extenstion for Local Interface ID
Advertisement . . . . . . . . . . . . . . . . . . . . . . 18
6. YANG Module for OSPF Maximum SID Depth (MSD) . . . . . . . . 20
7. YANG Module for OSPF Application-Specific Link Attributes . . 28
8. YANG Module for OSPF Flexible Algorithm . . . . . . . . . . . 34
9. Security Considerations . . . . . . . . . . . . . . . . . . . 54
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 55
11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 57
12. Normative References . . . . . . . . . . . . . . . . . . . . 57
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 59
1. Overview
YANG [RFC6020] [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].
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
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Interface ID Advertisement [RFC8510].
RFC8920: OSPF Application-Specific Link Attributes [RFC8920].
RFCxxxx: IGP Flexible Algorithm [I-D.ietf-lsr-flex-algo].
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 Version 3
This document defines a YANG module for Traffic Engineering
Extensions to OSPF Version 3 as defined in [RFC5329]. It is an
augmentation of the OSPF base model.
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module: ietf-ospfv3-te
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 inet:ipv4-address
| +--ro nbr-router-id yang:dotted-quad
+--ro unknown-tlvs
+--ro unknown-tlv*
+--ro type? uint16
+--ro length? uint16
+--ro value? yang:hex-string
<CODE BEGINS> file "ietf-ospfv3-te@2023-01-02.yang"
module ietf-ospfv3-te {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-ospfv3-te";
prefix ospfv3-te;
import ietf-inet-types {
prefix "inet";
reference "RFC 6991: Common YANG Data Types";
}
import ietf-yang-types {
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prefix "yang";
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 OSPFv3 extensions to support intra-area Traffic
Engineering (TE) as defined in RFC 5329.
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).
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This version of this YANG module is part of RFC XXXX;
see the RFC itself for full legal notices.";
reference "RFC XXXX";
revision 2023-01-02 {
description
"Initial version";
reference
"RFC XXXX: A YANG Data Model for OSPFv3 TE.";
}
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 "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.";
}
}
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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 {
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.";
}
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container neighbor-id {
description "Neighbor link identification.";
leaf nbr-interface-id {
type inet:ipv4-address;
mandatory true;
description "The neighbor's interface ID.";
}
leaf nbr-router-id {
type yang:dotted-quad;
mandatory true;
description "The neighbor's router ID.";
}
}
uses ospf:unknown-tlvs;
}
description "OSPFv3 Intra-Area-TE-LSA.";
reference "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: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 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.
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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@2023-01-02.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";
}
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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 2023-01-02 {
description
"Initial version";
reference
"RFC XXXX: A YANG Data Model for OSPF.";
}
identity two-part-metric {
base ospf:informational-capability;
description
"When set, the router is capable of supporting OSPF
two-part metrics.";
reference
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"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 "../../../../../../../../../../../../"
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+ "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";
}
}
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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>
4. 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.
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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@2023-01-02.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";
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reference "RFC 9129 - YANG Data Model for the OSPF
Protocol";
}
import ietf-ospfv3-extended-lsa {
prefix "ospfv3-e-lsa";
}
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 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) 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 2023-01-02 {
description
"Initial version";
reference
"RFC XXXX: A YANG Data Model for OSPF Graceful Link Shutdown.";
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}
/* 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
"OSPF graceful link shutdown for OSPFv2 extended link TLV
in type 10 opaque LSA.";
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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";
}
container graceful-link-shutdown-sub-tlv {
presence "Enable graceful link shutdown";
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description
"Graceful-Link-Shutdown sub-TLV identifies the link as being
gracefully shutdown.";
}
description
"Augment OSPFv3 Area scope router-link TLV.";
}
}
<CODE ENDS>
5. 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@2023-01-02.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";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
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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 Link-Local Signaling (LLS) Extensions for Local
Interface ID Advertisement feature as defined in RFC 8510.
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 2023-01-02 {
description
"Initial version";
reference
"RFC XXXX: A YANG Data Model for OSPF Link-Local Signaling (LLS)
Extensions for Local Interface ID Advertisement.";
}
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 {
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type boolean;
default false;
description
"Enable LLS to advertise local interface ID.";
}
description
"OSPF LLS Extensions for interface ID.";
}
}
}
<CODE ENDS>
6. 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
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/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: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-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: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: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-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:
+--ro link-msd-sub-tlv
+--ro link-msds* [msd-type]
+--ro msd-type identityref
+--ro msd-value? uint8
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<CODE BEGINS> file "ietf-ospf-msd@2023-01-02.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;
}
import ietf-ospfv3-extended-lsa {
prefix ospfv3-e-lsa;
}
organization
"IETF LSR - LSR Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/lsr/>
WG List: <mailto:mpls@ietf.org>
Author: Yingzhen Qu
<mailto:yingzhen.qu@futurewei.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) 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
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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 MSD.";
revision 2023-01-02 {
description
"Initial Version";
reference "RFC XXXX: YANG Data Model for OSPF MSD.";
}
identity msd-base-type {
description
"Base identity for MSD Type";
}
identity base-mpls-msd {
base msd-base-type;
description
"Base MPLS Imposition MSD.";
reference
"RFC 8491: Singling MSD using IS-IS.";
}
identity erld-msd {
base msd-base-type;
description
"ERLD-MSD is defined to advertise the ERLD.";
reference
"RFC 8662: Entropy Label for Source Packet Routing in
Networking (SPRING) Tunnels";
}
grouping node-msd-tlv {
description
"Grouping for node MSD.";
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container node-msd-tlv {
list node-msds {
key "msd-type";
leaf msd-type {
type identityref {
base msd-base-type;
}
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 msd-base-type;
}
description
"MSD-Types";
}
leaf msd-value {
type uint8;
description
"MSD value, in the range of 0-255.";
}
description
"List of link MSDs";
}
description
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"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
"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/"
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+ "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/"
+ "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-link-opaque/ospf:extended-link-tlv" {
when "../../../../../../../../../../../../../../"
+ "rt:type = 'ospf:ospfv2'" {
description
"This augmentation is only valid for OSPFv2.";
}
description
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"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: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: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-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/"
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+ "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" {
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>
7. YANG Module for OSPF Application-Specific Link Attributes
This document defines a YANG module for OSPF Application-Specific
Link Attributes feature as defined in [RFC8920]. It is an
augmentation of the OSPF base model.
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 application-specific-link-attributes-sub-tlvs
+--ro asla-sub-tlvs* []
+--ro sabm-length? uint8
+--ro udabm-length? uint8
+--ro sabm
| +--ro sabm-bits* identityref
+--ro udabm
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+--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 application-specific-link-attributes-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-link-attr@2023-01-02.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";
}
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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>
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 xxxx.
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
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.
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 2023-01-02 {
description
"Initial version";
reference
"RFC XXXX: A YANG Data Model for OSPF application specific
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link attributes.";
}
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;
description
"F bit, Loop Free Alternate (LFA). Includes all LFA types.";
}
grouping application-specific-link-attributes-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 application-specific-link-attributes-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 {
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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.";
}
description
"List of application-Specific Link Attributes sub-TLVs.";
}
}
}
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.";
}
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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/"
+ "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
"OSPF Application-Specific Link Attributes (ASLA) sub-TLV is
a sub-TLV of OSPFv2 Extended Link TLV (RFC7684).";
uses application-specific-link-attributes-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 "'ospf:../../../../../../../../../"
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+ "rt:type' = 'ospf:ospfv3'" {
description
"This augmentation is only valid for OSPFv3
E-Router LSAs";
}
description
"Augment OSPFv3 Area scope router-link TLV.";
uses application-specific-link-attributes-sub-tlvs;
}
}
<CODE ENDS>
8. YANG Module for OSPF Flexible Algorithm
This document defines a YANG module for OSPF Flexible Algorithm as
defined in [I-D.ietf-lsr-flex-algo]. 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
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/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
| +--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
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+--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
| +--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
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+--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* []
+--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
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+--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: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
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/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:
+--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:
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+--ro faam-sub-tlvs
+--ro faam-sub-tlv* []
+--ro flex-algo? uint8
+--ro metric? uint32
<CODE BEGINS> file "ietf-ospf-flex-algo@2023-01-02.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
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";
}
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:spring@ietf.org>
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Author: Yingzhen Qu
<mailto:yingzhen.qu@futurewei.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
state for OSPF Flexible Algorithm as defined in RFC xxxx.
This YANG model conforms to the Network Management
Datastore Architecture (NMDA) as described in RFC 8342.
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.
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 2023-01-02 {
description
"Initial Version";
reference "RFC XXXX: YANG Data Model for OSPF Flexible Algorithm.";
}
/* Identities */
identity metric-type {
description
"Base identity for route metric types.";
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}
identity igp-metric {
base metric-type;
description
"Identity for the IGP metric type.";
}
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.";
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}
/* Groupings */
grouping fa-ex-ag-sub-tlv {
container fa-ex-ag-sub-tlv {
leaf-list extended-admin-groups {
type uint64;
description
"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 {
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type identityref {
base fad-flags;
}
description
"Flex-algo definition flags list.";
}
description
"OSPF flex-algo definition flags.";
}
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
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defined under 'Interior Gateway Protocol (IGP)
Parameter' by IANA.";
}
leaf priority {
type uint8;
description
"Priority of the advertisement.";
}
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
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"List of flex-algo prefix sub-tlvs.";
}
description
"Flex-algo prefix metric sub-tlvs.";
}
description
"Flexible Algorithm Prefix Metric (FAPM) sub TLVs.";
}
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 {
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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
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.";
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}
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/"
+ "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
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"Priority of the advertisement.";
}
description
"List of flex-algo configurations.";
}
description
"Flexible Algorithm configuration.";
}
}
/* 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.";
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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" {
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 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'" {
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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: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/"
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+ "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 "../../../../../../../../../../../../"
+ "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";
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}
uses fapm-sub-tlvs;
description
"OSPFv3 Area-Scoped Inter-Area Prefix TLV.";
}
/* 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.";
}
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uses faam-sub-tlvs;
uses ospf:unknown-tlvs;
description
"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>
9. 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].
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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.
10. 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-ospfv3-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.
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.
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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.
This document registers the YANG modules in the YANG Module Names
registry [RFC6020].
name: ietf-ospfv3-te
namespace: urn:ietf:params:xml:ns:yang:ietf-ospfv3-te
prefix: ospfv3-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
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-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
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11. 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.
12. Normative References
[I-D.ietf-lsr-flex-algo]
Psenak, P., Hegde, S., Filsfils, C., Talaulikar, K., and
A. Gulko, "IGP Flexible Algorithm", Work in Progress,
Internet-Draft, draft-ietf-lsr-flex-algo-26, 17 October
2022, <https://datatracker.ietf.org/doc/html/draft-ietf-
lsr-flex-algo-26>.
[RFC2119] Bradner, S. and RFC Publisher, "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>.
[RFC3688] Mealling, M. and RFC Publisher, "The IETF XML Registry",
BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC5246] Dierks, T., Rescorla, E., and RFC Publisher, "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., Lindem, A., Ed., and
RFC Publisher, "Traffic Engineering Extensions to OSPF
Version 3", RFC 5329, DOI 10.17487/RFC5329, September
2008, <https://www.rfc-editor.org/info/rfc5329>.
[RFC6020] Bjorklund, M., Ed. and RFC Publisher, "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.,
Bierman, A., Ed., and RFC Publisher, "Network
Configuration Protocol (NETCONF)", RFC 6241,
DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
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[RFC6242] Wasserman, M. and RFC Publisher, "Using the NETCONF
Protocol over Secure Shell (SSH)", RFC 6242,
DOI 10.17487/RFC6242, June 2011,
<https://www.rfc-editor.org/info/rfc6242>.
[RFC6536] Bierman, A., Bjorklund, M., and RFC Publisher, "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. and RFC Publisher, "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., Watsen, K., and RFC Publisher,
"RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040,
January 2017, <https://www.rfc-editor.org/info/rfc8040>.
[RFC8042] Zhang, Z., Wang, L., Lindem, A., and RFC Publisher, "OSPF
Two-Part Metric", RFC 8042, DOI 10.17487/RFC8042, December
2016, <https://www.rfc-editor.org/info/rfc8042>.
[RFC8349] Lhotka, L., Lindem, A., Qu, Y., and RFC Publisher, "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., Jalil,
L., and RFC Publisher, "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., Psenak, P., and
RFC Publisher, "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., Pillay-
Esnault, P., and RFC Publisher, "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>.
[RFC8920] Psenak, P., Ed., Ginsberg, L., Henderickx, W., Tantsura,
J., Drake, J., and RFC Publisher, "OSPF Application-
Specific Link Attributes", RFC 8920, DOI 10.17487/RFC8920,
October 2020, <https://www.rfc-editor.org/info/rfc8920>.
Lindem & Qu Expires 6 July 2023 [Page 58]
Internet-Draft OSPF YANG Augments V1 January 2023
[RFC9129] Yeung, D., Qu, Y., Zhang, Z., Chen, I., Lindem, A., and
RFC Publisher, "YANG Data Model for the OSPF Protocol",
RFC 9129, DOI 10.17487/RFC9129, October 2022,
<https://www.rfc-editor.org/info/rfc9129>.
Authors' Addresses
Acee Lindem
Cisco Systems
301 Midenhall Way
Cary, NC 27513
Email: acee.ietf@gmail.com
Yingzhen Qu
Futurewei
2330 Central Expressway
Santa Clara, CA 95050
United States of America
Email: yingzhen.qu@futurewei.com
Lindem & Qu Expires 6 July 2023 [Page 59]
