BIER WG Ran. Chen Internet-Draft Fangwei. Hu Intended status: Standards Track Zheng. Zhang Expires: April 18, 2016 Xianxia. Dai ZTE Corporation Mahesh Sivakumar Cisco Systems, Inc. October 16, 2015 YANG Data Model for BIER Protocol draft-chh-bier-bier-yang-01.txt Abstract This document defines a YANG data model for BIER configuration and operation. 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 http://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 April 18, 2016. Copyright Notice Copyright (c) 2015 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 (http://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 Chen, et al. Expires April 18, 2016 [Page 1] Internet-Draft BIER YANG October 2015 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Design of the Data Model . . . . . . . . . . . . . . . . . . 2 3. Configuration . . . . . . . . . . . . . . . . . . . . . . . . 4 4. Control plane configuration . . . . . . . . . . . . . . . . . 4 5. States . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6. Notification . . . . . . . . . . . . . . . . . . . . . . . . 5 7. BIER YANG Data Model . . . . . . . . . . . . . . . . . . . . 5 8. Security Considerations . . . . . . . . . . . . . . . . . . . 15 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 15 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15 11. Normative references . . . . . . . . . . . . . . . . . . . . 15 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 16 1. Introduction This document defines a YANG data model for BIER configuration and operation. 2. Design of the Data Model module: ietf-bier augment /rt:routing: +--rw bier +--rw bier-global +--rw encapsulation-type? identityref +--rw bitstringlength enumeration +--rw bfr-id uint16 +--rw af | +--rw ipv4 | | +--rw ipv4-bfr-prefix inet:ipv4-prefix | +--rw ipv6 | +--rw ipv6-bfr-prefix inet:ipv6-prefix +--rw sub-domain* [sub-domain-id] +--rw sub-domain-id uint16 +--rw mt-id uint16 +--rw bfr-id? uint16 +--rw frr? boolean +--rw bitstringlength enumeration +--rw af +--rw ipv4* [bitstringlength bier-mpls-label] | +--rw bitstringlength uint16 | +--rw bier-mpls-label uint32 | +--rw bier-mpls-label-range-size? uint8 Chen, et al. Expires April 18, 2016 [Page 2] Internet-Draft BIER YANG October 2015 +--rw ipv6* [bitstringlength bier-mpls-label] +--rw bitstringlength uint16 +--rw bier-mpls-label uint32 +--rw bier-mpls-label-range-size? uint8 augment /rt:routing/rt:routing-instance/rt:routing-protocols /rt:routing-protocol/isis:isis/isis:instance: +--rw mt +--rw mt-id uint16 +--rw bier-global +--rw enable? boolean +--rw advertise? boolean +--rw receive? boolean augment /rt:routing/rt:routing-instance/rt:routing-protocols /rt:routing-protocol/ospf:ospf/ospf:instance: +--rw mt +--rw mt-id uint16 +--rw bier-global +--rw enable? boolean +--rw advertise? boolean +--rw receive? boolean augment /rt:routing-state: +--ro bier-global | +--ro bfr-id uint16 | +--ro ipv4-bfr-prefix? inet:ipv4-prefix | +--ro ipv6-bfr-prefix? inet:ipv6-prefix | +--ro sub-domain* [sub-domain-id] | +--ro sub-domain-id uint16 | +--ro mt-id uint16 | +--ro bfr-id? uint16 | +--ro bitstringlength uint16 | +--ro ipv4* [bitstringlength label] | | +--ro bitstringlength uint16 | | +--ro label? uint32 | | +--ro label-range-size? uint8 | +--ro ipv6* [bitstringlength label] | +--ro bitstringlength uint16 | +--ro label? uint32 | +--ro label-range-size? uint8 +--ro birts +--ro birt* [sub-domain-id bitstringlength si] +--ro sub-domain-id uint16 +--ro bitstringlength uint16 +--ro si uint16 +--ro f-bm? uint16 +--ro bier-mpls-in-label uint32 Chen, et al. Expires April 18, 2016 [Page 3] Internet-Draft BIER YANG October 2015 +--ro bfr-nbr? union +--ro bier-mpls-out-label uint32 notifications: +---n bfr-id-collision | +--ro bfr-id? uint16 +---n bfr-zero | +--ro ipv4-bfr-prefix? inet:ipv4-prefix | +--ro ipv6-bfr-prefix? inet:ipv6-prefix +---n sub-domain-id-collision +--ro sub-domain-id? uint16 +--ro mt-id? uint16 3. Configuration This Module augments the "/rt:routing:" with a BIER container. This Container defines all the configuration parameters related to BIER for this particular routing. The BIER configuration contains global configuration. The global configuration includes BIER transport type, imposition BitStringLengths, BFR-id, AF, and parameters associated with bier sub-domain. In this document, we contains two types of BitStringLengths: Imposition and Disposition BitStringLengths, as defined in ([I-D.ietf-bier-architecture]).The imposition BitStringLengths is defined under bier-global container, and the disposition BitStringLengths is defined under the sub-domain. 4. Control plane configuration This Module augments routing-protocol configuration with BIER. This Module supports ISIS ([I-D.ietf-bier-isis-extensions])and OSPF ([I-D.ietf-bier-ospf-bier-extensions]) as control plane for BIER. 5. States The operational states contains basic parameters associated with bier, such as BFR-id, BFR-prefixes and parameters associated with bier sub-domain. Chen, et al. Expires April 18, 2016 [Page 4] Internet-Draft BIER YANG October 2015 It also includes the Bit Index Routing Table(BIRT). 6. Notification This Module includes bfr-id-collision, bfr-zero, and sub-domain-id- collision. 7. BIER YANG Data Model module ietf-bier { namespace "urn:ietf:params:xml:ns:yang:ietf-bier"; prefix "bier"; import ietf-routing { prefix "rt"; } import ietf-inet-types { prefix "inet"; } organization "IETF BIER(Bit Indexed Explicit Replication ) Working Group"; contact "WG List: WG Chair: Tony Przygienda WG Chair: Greg Shepherd Editor: Ran Chen Editor: Fangwei Hu Editor: Zheng Zhang Editor: Xianxian Dai Editor: Mahesh Sivakumar Chen, et al. Expires April 18, 2016 [Page 5] Internet-Draft BIER YANG October 2015 "; description "The YANG module defines a generic configuration model for BIER."; revision 2015-10-16 { description "01 revision."; reference "draft-chh-bier-bier-yang-01"; } revision 2015-06-22 { description "Initial revision."; reference "draft-chh-bier-bier-yang-00"; } /* Identities */ identity bier-encapsulation{ description "Base identity for BIER encapsulation."; } identity bier-encapsulation-mpls { base bier-encapsulation; description "This identity represents MPLS encapsulation for bier."; } /* Configuration Data */ augment "/rt:routing" { description "This augments routing-instance configuration with bier."; container bier{ description "BIER config."; container bier-global { description "BIER global config."; leaf encapsulation-type { type identityref { base bier-encapsulation; } default "bier-encapsulation-mpls"; description "Dataplane to be used."; } leaf bitstringlength{ Chen, et al. Expires April 18, 2016 [Page 6] Internet-Draft BIER YANG October 2015 type enumeration{ enum 64-bit{ description "bitstringlength is 64"; } enum 128-bit{ description "bitstringlength is 128"; } enum 256-bit{ description "bitstringlength is 256"; } enum 512-bit{ description "bitstringlength is 512"; } enum 1024-bit{ description "bitstringlength is 1024"; } enum 2048-bit{ description "bitstringlength is 2048"; } enum 4096-bit{ description "bitstringlength is 4096"; } } description "imposition"; } leaf bfr-id { type uint16; description "BIER bfr identifier."; } container af { container ipv4 { leaf ipv4-bfr-prefix { type inet:ipv4-prefix; description "BIER IPv4 prefix."; } description "IPv4 prefix."; } container ipv6 { leaf ipv6-bfr-prefix { type inet:ipv6-prefix; description "BIER IPv6 prefix."; } description Chen, et al. Expires April 18, 2016 [Page 7] Internet-Draft BIER YANG October 2015 "IPv6 prefix."; } description "BIER IPV4&IPV6 prefix"; } list sub-domain { key "sub-domain-id"; leaf sub-domain-id{ type uint16; description "sub-domain ID."; } leaf mt-id { type uint16; description "multi-topology ID."; } leaf bfr-id{ type uint16; description "BIER bfr identifier."; } leaf frr{ type boolean; description "Enables BIER FRR."; } leaf bitstringlength{ type enumeration{ enum 64-bit{ description "bitstringlength is 64"; } enum 128-bit{ description "bitstringlength is 128"; } enum 256-bit{ description "bitstringlength is 256"; } enum 512-bit{ description "bitstringlength is 512"; } enum 1024-bit{ description "bitstringlength is 1024"; } enum 2048-bit{ description "bitstringlength is 2048"; } enum 4096-bit{ Chen, et al. Expires April 18, 2016 [Page 8] Internet-Draft BIER YANG October 2015 description "bitstringlength is 4096"; } } description "disposition"; } container af { list ipv4 { key "bitstringlength bier-mpls-label"; leaf bitstringlength { type uint16; description "BIER bitstringlength."; } leaf bier-mpls-label{ type uint32; description "BIER label."; } leaf bier-mpls-label-range-size{ type uint8; description "BIER label range."; } description "IPv4 mapping entries."; } list ipv6 { key "bitstringlength bier-mpls-label"; leaf bitstringlength { type uint16; description "BIER bitstringlength."; } leaf bier-mpls-label{ type uint32; description "BIER label."; } leaf bier-mpls-label-range-size{ type uint8; description "BIER label range."; } description "IPv6 mapping entries."; } description Chen, et al. Expires April 18, 2016 [Page 9] Internet-Draft BIER YANG October 2015 "Bier mapping entries."; } description "Parameters associated with bier sub-domain."; } } } } augment "/rt:routing/rt:routing-instance/rt:routing-protocols/" + "rt:routing-protocol" { description "This augments ospf protocol configuration with bier."; container mt{ description "Control of bier advertisement and reception."; leaf mt-id{ type uint16; description "Multi-topology associated with bier sub-domain."; } container bier-global { description "BIER global config."; leaf enable { type boolean; default false; description "Enables bier protocol extensions."; } leaf advertise { type boolean; default true; description "Enable to advertise the parameters associated with bier."; } leaf receive { type boolean; default true; description "Enable to receive the parameters associated with bier."; } } } } augment "/rt:routing/rt:routing-instance/rt:routing-protocols/" Chen, et al. Expires April 18, 2016 [Page 10] Internet-Draft BIER YANG October 2015 + "rt:routing-protocol" { description "This augments ISIS protocol configuration with bier."; container mt{ description "Control of bier advertisement and reception."; leaf mt-id{ type uint16; description "Multi-topology associated with bier sub-domain."; } container bier-global { description "BIER global config."; leaf enable { type boolean; default false; description "Enables bier protocol extensions."; } leaf advertise { type boolean; default true; description "Enable to advertise the parameters associated with bier."; } leaf receive { type boolean; default true; description "Enable to receive the parameters associated with bier."; } } } } /* Operational data */ augment "/rt:routing-state" { description "This augments the operational states with bier."; container bier-global{ leaf bfr-id{ type uint16; description "BIER BFR ID."; } Chen, et al. Expires April 18, 2016 [Page 11] Internet-Draft BIER YANG October 2015 leaf ipv4-bfr-prefix{ type inet:ipv4-prefix; description "BIER ipv4 prefix."; } leaf ipv6-bfr-prefix{ type inet:ipv6-prefix; description "BIER ipv6 prefix."; } list sub-domain { key "sub-domain-id"; leaf sub-domain-id { type uint16; description "sub-domain ID."; } leaf mt-id { type uint16; description "Multi-topology ID"; } leaf bfr-id { type uint16; description "BIER bfr identifier."; } leaf bitstringlength{ type uint16; description "BIER bitstringlength."; } list ipv4 { key "bitstringlength label"; leaf bitstringlength { type uint16; description "BIER bitstringlength."; } leaf label{ type uint32; description "BIER label."; } leaf label-range-size{ type uint8; description "BIER label range."; Chen, et al. Expires April 18, 2016 [Page 12] Internet-Draft BIER YANG October 2015 } description "IPv4 mapping entries."; } list ipv6 { key "bitstringlength label"; leaf bitstringlength { type uint16; description "BIER bitstringlength."; } leaf label{ type uint32; description "BIER label."; } leaf label-range-size{ type uint8; description "BIER label range."; } description "IPv6 mapping entries."; } description "Parameters associated with bier sub-domain."; } description "Parameters associated with bier."; } container birts{ list birt{ key "sub-domain-id bitstringlength si"; leaf sub-domain-id{ type uint16; description "BIER sub domain ID"; } leaf bitstringlength{ type uint16; description "BIER bitstringlength."; } leaf si{ type uint16; description "BIER SI."; Chen, et al. Expires April 18, 2016 [Page 13] Internet-Draft BIER YANG October 2015 } leaf f-bm{ type uint16; description "BIER Forwarding Bit Mask."; } leaf bier-mpls-in-label{ type uint32; description "BIER in-label."; } leaf bfr-nbr{ type union{ type inet:ipv4-address; type inet:ipv6-address; } description "BIER BFR Neighbors."; } leaf bier-mpls-out-label{ type uint32; description "BIER out-label."; } description "Shows Bit Index Routing Table."; } description "BIER birt operational states."; } } /* Notifications */ notification bfr-id-collision{ leaf bfr-id{ type uint16; description "BIER BFR ID."; } description "BFR ID received in the controlplane that caused BFR ID collision."; } notification bfr-zero{ leaf ipv4-bfr-prefix{ type inet:ipv4-prefix; description Chen, et al. Expires April 18, 2016 [Page 14] Internet-Draft BIER YANG October 2015 "BIER ipv4 bfr prefix"; } leaf ipv6-bfr-prefix{ type inet:ipv6-prefix; description "BIER ipv6 bfr prefix"; } description "Invalid value associated with prefix"; } notification sub-domain-id-collision{ leaf sub-domain-id{ type uint16; description "BIER sub domain ID"; } leaf mt-id{ type uint16; description "Multi-topology ID"; } description "Sub domain ID received in the controlplane that caused Sub domain ID collision"; } } 8. Security Considerations TBD. 9. Acknowledgements TBD. 10. IANA Considerations This document requires no IANA Actions. Please remove this section before RFC publication. 11. Normative references Chen, et al. Expires April 18, 2016 [Page 15] Internet-Draft BIER YANG October 2015 [I-D.ietf-bier-architecture] Wijnands, I., Rosen, E., Dolganow, A., Przygienda, T., and S. Aldrin, "Multicast using Bit Index Explicit Replication", draft-ietf-bier-architecture-02 (work in progress), July 2015. [I-D.ietf-bier-isis-extensions] Ginsberg, L., Aldrin, S., Zhang, J., and T. Przygienda, "BIER support via ISIS", draft-ietf-bier-isis- extensions-00 (work in progress), April 2015. [I-D.ietf-bier-mpls-encapsulation] Wijnands, I., Rosen, E., Dolganow, A., Tantsura, J., and S. Aldrin, "Encapsulation for Bit Index Explicit Replication in MPLS Networks", draft-ietf-bier-mpls- encapsulation-02 (work in progress), August 2015. [I-D.ietf-bier-ospf-bier-extensions] Psenak, P., Kumar, N., Wijnands, I., Dolganow, A., Przygienda, T., Zhang, J., and S. Aldrin, "OSPF Extensions For BIER", draft-ietf-bier-ospf-bier-extensions-00 (work in progress), April 2015. [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, . [RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types", RFC 6991, DOI 10.17487/RFC6991, July 2013, . [RFC7223] Bjorklund, M., "A YANG Data Model for Interface Management", RFC 7223, DOI 10.17487/RFC7223, May 2014, . Authors' Addresses Chen, et al. Expires April 18, 2016 [Page 16] Internet-Draft BIER YANG October 2015 Ran Chen ZTE Corporation No.50 Software Avenue,Yuhuatai District Nanjing, Jiangsu Province 210012 China Phone: +86 025 88014636 Email: chen.ran@zte.com.cn Fangwei Hu ZTE Corporation No.889 Bibo Rd Shanghai 201203 China Phone: +86 21 68896273 Email: hu.fangwei@zte.com.cn Zheng Zhang ZTE Corporation No.50 Software Avenue,Yuhuatai District Nanjing, Jiangsu Province 210012 China Email: zhang.zheng@zte.com.cn Xianxian Dai ZTE Corporation No.50 Software Avenue,Yuhuatai District Nanjing, Jiangsu Province 210012 China Email: Dai.xianxian@zte.com.cn Mahesh Sivakumar Cisco Systems, Inc. 510 McCarthy Blvd Milpitas,California 95035 United States Email: masivaku@cisco.com Chen, et al. Expires April 18, 2016 [Page 17]