Internet A. Lindem Internet-Draft Cisco Systems Intended status: Informational Y. Qu Expires: February 3, 2021 Futurewei August 2, 2020 YANG Data Model for OSPFv3 Segment Routing draft-acee-lsr-ospfv3-sr-yang-02 Abstract This document defines a YANG data module augmenting the IETF OSPF Segment Routing (SR) YANG model to support OSPFv3 extensions for SR. It can be used to configure and manage OSPFv3 Segment Routing in MPLS dataplane. 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 February 3, 2021. Copyright Notice Copyright (c) 2020 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 extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Lindem & Qu Expires February 3, 2021 [Page 1] Internet-Draft OSPFv3 SR YANG August 2020 Table of Contents 1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Requirements Language . . . . . . . . . . . . . . . . . . 2 2. Tree Diagrams . . . . . . . . . . . . . . . . . . . . . . . . 2 3. OSPFv3 Extensions for Segment Routing . . . . . . . . . . . . 2 4. Security Considerations . . . . . . . . . . . . . . . . . . . 24 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 24 6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 25 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 25 7.1. Normative References . . . . . . . . . . . . . . . . . . 25 7.2. Informative References . . . . . . . . . . . . . . . . . 26 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 26 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 a YANG data module augmenting the IETF OSPF SR YANG model [I-D.ietf-ospf-sr-yang], and can be used to configure and manage OSPFv3 extensions for Segment Routing [RFC8666]. The augmentation defined in this document requires support for both the OSPF SR model and the OSPF base model[I-D.ietf-ospf-yang]. 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. Tree Diagrams This document uses the graphical representation of data models defined in [RFC8340]. 3. OSPFv3 Extensions for Segment Routing This document defines a YANG module for OSPFv3 extensions for Segment Routing [RFC8666]. It is an augmentation of the OSPF SR base model. Lindem & Qu Expires February 3, 2021 [Page 2] Internet-Draft OSPFv3 SR YANG August 2020 module: ietf-ospfv3-sr 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 sr-algorithm-tlv | +--ro sr-algorithm* uint8 +--ro sid-range-tlvs | +--ro sid-range-tlv* | +--ro range-size? uint24 | +--ro sid-sub-tlv | +--ro sid? uint32 +--ro local-block-tlvs | +--ro local-block-tlv* | +--ro range-size? uint24 | +--ro sid-sub-tlv | +--ro sid? uint32 +--ro srms-preference-tlv +--ro preference? 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 sr-algorithm-tlv | +--ro sr-algorithm* uint8 +--ro sid-range-tlvs | +--ro sid-range-tlv* | +--ro range-size? uint24 | +--ro sid-sub-tlv | +--ro sid? uint32 +--ro local-block-tlvs | +--ro local-block-tlv* | +--ro range-size? uint24 | +--ro sid-sub-tlv | +--ro sid? uint32 +--ro srms-preference-tlv +--ro preference? 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:ospfv3/ospf:ospfv3 /ospf:body/ospf:router-information: +--ro sr-algorithm-tlv | +--ro sr-algorithm* uint8 +--ro sid-range-tlvs Lindem & Qu Expires February 3, 2021 [Page 3] Internet-Draft OSPFv3 SR YANG August 2020 | +--ro sid-range-tlv* | +--ro range-size? uint24 | +--ro sid-sub-tlv | +--ro sid? uint32 +--ro local-block-tlvs | +--ro local-block-tlv* | +--ro range-size? uint24 | +--ro sid-sub-tlv | +--ro sid? uint32 +--ro srms-preference-tlv +--ro preference? 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-intra-area-prefix: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? 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 /ospfv3-e-lsa:e-intra-area-prefix: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref Lindem & Qu Expires February 3, 2021 [Page 4] Internet-Draft OSPFv3 SR YANG August 2020 | +--ro algorithm? uint8 | +--ro sid? 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/ospfv3-e-lsa:e-inter-area-prefix: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? 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 /ospfv3-e-lsa:e-inter-area-prefix: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? uint32 +--ro unknown-tlvs +--ro unknown-tlv* Lindem & Qu Expires February 3, 2021 [Page 5] Internet-Draft OSPFv3 SR YANG August 2020 +--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-as-external: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? 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 /ospfv3-e-lsa:e-as-external: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? 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 Lindem & Qu Expires February 3, 2021 [Page 6] Internet-Draft OSPFv3 SR YANG August 2020 /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-nssa: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? 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 /ospfv3-e-lsa:e-nssa: +--ro ospfv3-extended-prefix-range-tlvs +--ro extended-prefix-range-tlv* +--ro prefix-length? uint8 +--ro af? uint8 +--ro range-size? uint16 +--ro prefix? inet:ip-prefix +--ro perfix-sid-sub-tlvs | +--ro prefix-sid-sub-tlv* | +--ro ospfv3-prefix-sid-flags | | +--ro bits* identityref | +--ro algorithm? uint8 | +--ro sid? 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/ospfv3-e-lsa:e-link/ospfv3-e-lsa:e-link-tlvs Lindem & Qu Expires February 3, 2021 [Page 7] Internet-Draft OSPFv3 SR YANG August 2020 /ospfv3-e-lsa:intra-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro sid? 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-link/ospfv3-e-lsa:e-link-tlvs /ospfv3-e-lsa:intra-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro 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:ospfv3/ospf:ospfv3 /ospf:body/ospfv3-e-lsa:e-intra-area-prefix /ospfv3-e-lsa:e-intra-prefix-tlvs /ospfv3-e-lsa:intra-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro sid? 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-intra-area-prefix /ospfv3-e-lsa:e-intra-prefix-tlvs /ospfv3-e-lsa:intra-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro 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 Lindem & Qu Expires February 3, 2021 [Page 8] Internet-Draft OSPFv3 SR YANG August 2020 /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 perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro sid? 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-inter-area-prefix /ospfv3-e-lsa:e-inter-prefix-tlvs /ospfv3-e-lsa:inter-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro 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:ospfv3/ospf:ospfv3 /ospf:body/ospfv3-e-lsa:e-as-external /ospfv3-e-lsa:e-external-tlvs /ospfv3-e-lsa:external-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro sid? 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 perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro sid? uint32 Lindem & Qu Expires February 3, 2021 [Page 9] Internet-Draft OSPFv3 SR YANG August 2020 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-nssa/ospfv3-e-lsa:e-external-tlvs /ospfv3-e-lsa:external-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro sid? 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-nssa/ospfv3-e-lsa:e-external-tlvs /ospfv3-e-lsa:external-prefix-tlv: +--ro perfix-sid-sub-tlvs +--ro prefix-sid-sub-tlv* +--ro ospfv3-prefix-sid-flags | +--ro bits* identityref +--ro algorithm? uint8 +--ro 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:ospfv3/ospf:ospfv3 /ospf:body/ospfv3-e-lsa:e-router/ospfv3-e-lsa:e-router-tlvs /ospfv3-e-lsa:link-tlv: +--ro adj-sid-sub-tlvs | +--ro adj-sid-sub-tlv* | +--ro adj-sid-flags | | +--ro bits* 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 bits* identityref +--ro weight? uint8 +--ro neighbor-router-id? yang:dotted-quad +--ro sid? 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-router/ospfv3-e-lsa:e-router-tlvs Lindem & Qu Expires February 3, 2021 [Page 10] Internet-Draft OSPFv3 SR YANG August 2020 /ospfv3-e-lsa:link-tlv: +--ro adj-sid-sub-tlvs | +--ro adj-sid-sub-tlv* | +--ro adj-sid-flags | | +--ro bits* 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 bits* identityref +--ro weight? uint8 +--ro neighbor-router-id? yang:dotted-quad +--ro sid? uint32 file "ietf-ospfv3-sr@2020-08-02.yang" module ietf-ospfv3-sr { namespace "urn:ietf:params:xml:ns:yang:ietf-ospfv3-sr"; prefix ospfv3-sr; import ietf-inet-types { prefix "inet"; } import ietf-yang-types { prefix "yang"; } import ietf-routing { prefix "rt"; } import ietf-ospf { prefix "ospf"; } import ietf-ospfv3-extended-lsa { prefix "ospfv3-e-lsa"; } import ietf-ospf-sr { prefix "ospf-sr"; } organization "IETF LSR - Link State Routing Working Group"; Lindem & Qu Expires February 3, 2021 [Page 11] Internet-Draft OSPFv3 SR YANG August 2020 contact "WG Web: WG List: Author: Yingzhen Qu Author: Acee Lindem "; description "This YANG module defines the operational state for OSPFv3 Segment Routing, which is common across all of the vendor implementations. It is intended that the module will be extended by vendors to define vendor-specific OSPFv3 Segment Routing configuration and operational parameters and policies. This YANG model conforms to the Network Management Datastore Architecture (NMDA) as described in RFC 8242. Copyright (c) 2020 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 Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://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 2020-08-02 { description "Initial revision."; reference "RFC XXXX: A YANG Data Model for OSPFv3 Segment Routing."; } Lindem & Qu Expires February 3, 2021 [Page 12] Internet-Draft OSPFv3 SR YANG August 2020 /* groupings */ grouping ospfv3-prefix-sid-sub-tlvs { description "Prefix Segment ID (SID) sub-TLVs."; container perfix-sid-sub-tlvs{ description "Prefix SID sub-TLV."; list prefix-sid-sub-tlv { description "Prefix SID sub-TLV."; container ospfv3-prefix-sid-flags { leaf-list bits { type identityref { base ospf-sr:prefix-sid-bit; } description "Prefix SID Sub-TLV flag bits list."; } description "Segment Identifier (SID) Flags."; } leaf algorithm { type uint8; description "The algorithm associated with the prefix-SID."; } leaf sid { type uint32; description "An index or label."; } } } } grouping ospfv3-extended-prefix-range-tlvs { description "Extended prefix range TLV grouping."; container ospfv3-extended-prefix-range-tlvs { description "The list of range of prefixes."; list extended-prefix-range-tlv { //type=2? description "The range of prefixes."; leaf prefix-length { type uint8; description "Length of prefix in bits."; } leaf af { type uint8; description "Address family for the prefix."; } leaf range-size { type uint16; description "The number of prefixes covered by the Lindem & Qu Expires February 3, 2021 [Page 13] Internet-Draft OSPFv3 SR YANG August 2020 advertisement."; } leaf prefix { type inet:ip-prefix; description "Address prefix."; } uses ospfv3-prefix-sid-sub-tlvs; uses ospf:unknown-tlvs; } } } grouping ospfv3-adj-sid-sub-tlvs { description "Adjacency SID sub TLV grouping."; container adj-sid-sub-tlvs { description "Adjacency SID optional sub-TLVs."; list adj-sid-sub-tlv { description "List of Adjacency SID sub-TLVs."; container adj-sid-flags { leaf-list bits { type identityref { base ospf-sr:adj-sid-bit; } description "Adj sid sub-tlv flags list."; } description "Adj-sid sub-tlv flags."; } leaf weight { type uint8; description "Weight used for load-balancing."; } leaf sid { type uint32; description "Segment Identifier (SID) index/label."; } } } } grouping ospfv3-lan-adj-sid-sub-tlvs { description "LAN adj-sid sub TLV grouping."; container lan-adj-sid-sub-tlvs { description "LAN Adjacency SID optional sub-TLVs."; list lan-adj-sid-sub-tlv { description "List of LAN adjacency SID sub-TLVs."; container lan-adj-sid-flags { leaf-list bits { type identityref { Lindem & Qu Expires February 3, 2021 [Page 14] Internet-Draft OSPFv3 SR YANG August 2020 base ospf-sr:adj-sid-bit; } description "LAN adj sid sub-tlv flags list."; } description "LAN adj-sid sub-tlv flags."; } leaf weight { type uint8; description "Weight used for load-balancing."; } leaf neighbor-router-id { type yang:dotted-quad; description "Neighbor router ID."; } leaf sid { type uint32; description "Segment Identifier (SID) index/label."; } } } } /* Database */ /* Segment Routing Capabilities */ 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 "SR specific TLVs for OSPFv3 Router Information opaque LSA."; uses ospf-sr:sr-algorithm-tlv; uses ospf-sr:sid-range-tlvs; uses ospf-sr:local-block-tlvs; uses ospf-sr:srms-preference-tlv; } augment "/rt:routing/" + "rt:control-plane-protocols/rt:control-plane-protocol/" + "ospf:ospf/ospf:areas/" + "ospf:area/ospf:database/" Lindem & Qu Expires February 3, 2021 [Page 15] Internet-Draft OSPFv3 SR YANG August 2020 + "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 "SR specific TLVs for OSPFv3 Router Information LSA."; uses ospf-sr:sr-algorithm-tlv; uses ospf-sr:sid-range-tlvs; uses ospf-sr:local-block-tlvs; uses ospf-sr:srms-preference-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" { when "../../../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } description "SR specific TLVs for OSPFv3 Router Information LSA."; uses ospf-sr:sr-algorithm-tlv; uses ospf-sr:sid-range-tlvs; uses ospf-sr:local-block-tlvs; uses ospf-sr:srms-preference-tlv; } /* OSPFv3 Extended Prefix Range 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-intra-area-prefix" { when "../../../../../../../../../../" Lindem & Qu Expires February 3, 2021 [Page 16] Internet-Draft OSPFv3 SR YANG August 2020 + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 Area-Scoped E-Intra-Area-Prefix 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:ospfv3/" + "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-intra-area-prefix" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 AS-Scoped E-Intra-Area-Prefix 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/ospfv3-e-lsa:e-inter-area-prefix" { when "../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 Area-Scoped E-Inter-Area-Prefix 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:ospfv3/" Lindem & Qu Expires February 3, 2021 [Page 17] Internet-Draft OSPFv3 SR YANG August 2020 + "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-inter-area-prefix" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 AS-Scoped E-Inter-Area-Prefix 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/ospfv3-e-lsa:e-as-external" { when "../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 Area-Scoped E-AS-External 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:ospfv3/" + "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-as-external" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 AS-Scoped E-AS-External 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/" Lindem & Qu Expires February 3, 2021 [Page 18] Internet-Draft OSPFv3 SR YANG August 2020 + "ospf:area-scope-lsa/ospf:version/ospf:ospfv3/" + "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-nssa" { when "../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 Area-Scoped E-NSSA 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:ospfv3/" + "ospf:ospfv3/ospf:body/ospfv3-e-lsa:e-nssa" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-extended-prefix-range-tlvs; description "OSPFv3 AS-Scoped E-NSSA LSA."; } /* Prefix SID Sub-TLV in Intra-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-link/" + "ospfv3-e-lsa:e-link-tlvs/ospfv3-e-lsa:intra-prefix-tlv" { when "../../../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 Area-Scoped Intra-Area Prefix TLV."; } Lindem & Qu Expires February 3, 2021 [Page 19] Internet-Draft OSPFv3 SR YANG August 2020 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-link/" + "ospfv3-e-lsa:e-link-tlvs/ospfv3-e-lsa:intra-prefix-tlv" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 AS-Scoped Intra-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-intra-area-prefix/" + "ospfv3-e-lsa:e-intra-prefix-tlvs/ospfv3-e-lsa:intra-prefix-tlv" { when "../../../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 Area-Scoped Intra-Area 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-intra-area-prefix/" + "ospfv3-e-lsa:e-intra-prefix-tlvs/ospfv3-e-lsa:intra-prefix-tlv" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-prefix-sid-sub-tlvs; Lindem & Qu Expires February 3, 2021 [Page 20] Internet-Draft OSPFv3 SR YANG August 2020 description "OSPFv3 AS-Scoped Intra-Area Prefix TLV."; } /* Prefix SID Sub-TLV in 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 ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 Area-Scoped Inter-Area 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-inter-area-prefix/" + "ospfv3-e-lsa:e-inter-prefix-tlvs/ospfv3-e-lsa:inter-prefix-tlv" { when "'ospf:../../../../../../../../../" + "rt:type' = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3."; } uses ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 AS-Scoped Inter-Area Prefix TLV."; } /* Prefix SID Sub-TLV in External 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-as-external/" + "ospfv3-e-lsa:e-external-tlvs/ospfv3-e-lsa:external-prefix-tlv" { Lindem & Qu Expires February 3, 2021 [Page 21] Internet-Draft OSPFv3 SR YANG August 2020 when "../../../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 Area-Scoped 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 ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 AS-Scoped External 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-nssa/" + "ospfv3-e-lsa:e-external-tlvs/ospfv3-e-lsa:external-prefix-tlv" { when "../../../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 Area-Scoped External Prefix TLV."; } augment "/rt:routing/" + "rt:control-plane-protocols/rt:control-plane-protocol/" Lindem & Qu Expires February 3, 2021 [Page 22] Internet-Draft OSPFv3 SR YANG August 2020 + "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-nssa/" + "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 ospfv3-prefix-sid-sub-tlvs; description "OSPFv3 AS-Scoped External Prefix TLV."; } /* Adj-SID 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 "../../../../../../../../../../../../" + "rt:type = 'ospf:ospfv3'" { description "This augmentation is only valid for OSPFv3 E-Router LSAs"; } uses ospfv3-adj-sid-sub-tlvs; uses ospfv3-lan-adj-sid-sub-tlvs; description "OSPFv3 Area-Scoped Adj-SID 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/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."; } uses ospfv3-adj-sid-sub-tlvs; Lindem & Qu Expires February 3, 2021 [Page 23] Internet-Draft OSPFv3 SR YANG August 2020 uses ospfv3-lan-adj-sid-sub-tlvs; description "OSPFv3 AS-Scoped Adj-SID Sub-TLV."; } } 4. 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. 5. 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-sr Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. Lindem & Qu Expires February 3, 2021 [Page 24] Internet-Draft OSPFv3 SR YANG August 2020 This document registers the YANG modules in the YANG Module Names registry [RFC6020]. name: ietf-ospfv3-sr namespace: urn:ietf:params:xml:ns:yang:ietf-ospfv3-sr prefix: ospfv3-sr reference: RFC XXXX 6. 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. 7. References 7.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004, . [RFC5246] Dierks, T. and E. Rescorla, "The Transport Layer Security (TLS) Protocol Version 1.2", RFC 5246, DOI 10.17487/RFC5246, August 2008, . [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, DOI 10.17487/RFC6020, October 2010, . [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, . [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011, . Lindem & Qu Expires February 3, 2021 [Page 25] Internet-Draft OSPFv3 SR YANG August 2020 [RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration Protocol (NETCONF) Access Control Model", RFC 6536, DOI 10.17487/RFC6536, March 2012, . [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August 2016, . [RFC8022] Lhotka, L. and A. Lindem, "A YANG Data Model for Routing Management", RFC 8022, DOI 10.17487/RFC8022, November 2016, . [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . [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, . [RFC8666] Psenak, P., Ed. and S. Previdi, Ed., "OSPFv3 Extensions for Segment Routing", RFC 8666, DOI 10.17487/RFC8666, December 2019, . 7.2. Informative References [I-D.ietf-ospf-sr-yang] Yeung, D., Qu, Y., Zhang, Z., Chen, I., and A. Lindem, "YANG Data Model for OSPF SR (Segment Routing) Protocol", draft-ietf-ospf-sr-yang-12 (work in progress), July 2020. [I-D.ietf-ospf-yang] Yeung, D., Qu, Y., Zhang, Z., Chen, I., and A. Lindem, "YANG Data Model for OSPF Protocol", draft-ietf-ospf- yang-29 (work in progress), October 2019. [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . Authors' Addresses Lindem & Qu Expires February 3, 2021 [Page 26] Internet-Draft OSPFv3 SR YANG August 2020 Acee Lindem Cisco Systems 301 Midenhall Way Cary, NC 27513 EMail: acee@cisco.com Yingzhen Qu Futurewei 2330 Central Expressway Santa Clara, CA 95050 USA EMail: yingzhen.qu@futurewei.com Lindem & Qu Expires February 3, 2021 [Page 27]