Network Working group H. Bidgoli, Ed. Internet Draft Nokia Intended status: Standard Track D. Voyer Bell Canada Tanmoy Kundu J. Kotalwar Nokia R. Parekh Cisco System, Inc. T. Saad Juniper Networks Expires: January 7, 2020 July 6, 2019 YANG Data Model for p2mp sr policy draft-hb-spring-sr-p2mp-policy-yang-00 Abstract SR P2MP policies are set of policies that enable architecture for P2MP service delivery. This document defines a YANG data model for SR P2MP Policy 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), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. 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." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html Bidgoli, et al. Expires January 7, 2020 [Page 1] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 This Internet-Draft will expire on October 8, 2017. Copyright Notice Copyright (c) 2019 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 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Conventions used in this document . . . . . . . . . . . . . . . 2 3. Design of the Data Model . . . . . . . . . . . . . . . . . . . 3 4. Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 4 5. Control plane configuration . . . . . . . . . . . . . . . . . . 4 6. States . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7. Yang Data Model . . . . . . . . . . . . . . . . . . . . . . . . 4 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12 7. Security Considerations . . . . . . . . . . . . . . . . . . . . 12 8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8.1. Normative References . . . . . . . . . . . . . . . . . . . 12 8.2. Informative References . . . . . . . . . . . . . . . . . . 12 7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 12 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12 1. Introduction This document defines a YANG data model for P2MP SR Policy configuration and operation. 2. Conventions used in this document 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 RFC 2119 [RFC2119]. Bidgoli, et al. Expires January 7, 2020 [Page 2] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 3. Design of the Data Model submodule: router-p2mp-segment (belongs-to root) +--rw p2mp-segment! +--rw admin-state? boolean +--rw p2mp-policy* [p2mp-policy-name] | +--rw p2mp-policy-name string | +--rw root-address? inet:ipv4-address | +--rw tree-id? uint32 | +--rw admin-state? boolean | +--ro oper-state? boolean | +--rw leaf-list* [leaf-address] | +--rw leaf-address inet:ipv4-address | +--rw admin-state? boolean +--rw replication-policy* [replication-policy-name] +--rw replication-policy-name string +--rw root-address? inet:ipv4-address +--rw tree-id? uint32 +--rw node-address? inet:ipv4-address +--rw admin-state? boolean +--ro oper-state? boolean +--rw candidate-path* [candidate-path-name] +--rw candidate-path-name string +--rw origin? enumeration +--rw originator-asn? uint32 +--rw originator-node-address? inet:ipv4-address +--rw descriminator? uint32 +--rw admin-state? boolean +--ro oper-state? boolean +--rw plsp-id? uint32 +--rw preference? uint32 +--rw incoming-replication-sid? uint32 +--rw operation? enumeration +--rw next-hop-id* [next-hop-id] +--rw next-hop-id uint32 +--rw next-hop-address? inet:ipv4-address +--rw next-hop-interface-name? if:interface-ref +--rw protect-nexthop-id? uint32 +--rw weight? uint32 +--rw (label)? +--:(outgoing-replication-sid) | +--rw out-replication-sid* [index] | +--rw index uint32 +--:(outgoing-sr-policy-sid-list) | +--rw sr-policy-sid-list* [index] | +--rw index uint32 +--:(outgoin-sr-policy) +--rw sr-policy? string Bidgoli, et al. Expires January 7, 2020 [Page 3] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 4. Configuration This Module augments the "/rt:routing:" with a treeSID container. This container defines all the configuration parameter related to treeSID and P2MP SR Policy for this particular routing. The P2MP SR policy contains replication policy which in order contain candidate- path and the next-hop-groups for each OIF in the replication Policy. IT should be noted that two disjoint replication policies can be connected via a SR Policy as per draft-ietf-spring-segment-routing- policy. 5. Control plane configuration 6. States 7. Yang Data Model Bidgoli, et al. Expires January 7, 2020 [Page 4] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 file "ietf-p2mp-policy@2019-07-04.yang" module ietf-tree-sid { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:p2mp-policy-segment"; // replace with IANA namespace when assigned prefix tree-sid; import ietf-inet-types { prefix "inet"; } import ietf-yang-types { prefix "yang"; } import ietf-routing-types { prefix "rt-types"; } import ietf-routing { prefix "rt"; } import ietf-interfaces { prefix "if"; } import ietf-ip { prefix ip; } organization "IETF SPRING Working Group"; contact "WG Web: WG List: WG Chair: Bruno Decraene WG Chair: Rob Shakir Editor: Hooman Bidgoli Editor: Tanmoy Kundu Bidgoli, et al. Expires January 7, 2020 [Page 5] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 Editor: Daniel Voyer description "The module defines a collection of YANG definition for p2mp policy module."; revision 2019-07-04 { description "First draft."; reference "RFC XXXX: A YANG Data Model for TREE-SID"; } submodule router-p2mp-segment { belongs-to root { prefix "root"; } import ietf-inet-types { prefix "inet"; } import ietf-interfaces { prefix "if"; } container p2mp-segment { presence "Configure Tree SID parameters."; leaf admin-state { type boolean; default false; description "Administratively enable/disable Tree SID."; } list p2mp-policy { key "p2mp-policy-name"; uses p2mp-policy-key; leaf root-address { type inet:ipv4-address; description "Root address of the tree."; } leaf tree-id { type uint32; description "Tree ID uniquely indentifies a tunnel in the root, this also represent a spefic constraint. Also known as color and/or p2mp-id"; } leaf admin-state { type boolean; default false; Bidgoli, et al. Expires January 7, 2020 [Page 6] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 description "Administratively enable/disable Tree SID p2mp policy."; } leaf oper-state { type boolean; default false; config false; description "Tree SID p2mp policy operational state based on users."; } list leaf-list { key "leaf-address"; uses leaf-list-key; leaf admin-state { type boolean; default false; description "Administratively enable/disable Tree SID p2mp policy."; } } } list replication-policy { key "replication-policy-name"; uses replication-policy-key; leaf root-address { type inet:ipv4-address; description "Root address of the tree."; } leaf tree-id { type uint32; description "Tree ID uniquely indentifies a tunnel in the root, this also represent a spefic constraint. Also known as color and/or p2mp-id"; } leaf node-address { type inet:ipv4-address; description "Node address for which this replication policy is used."; } leaf admin-state { type boolean; default false; Bidgoli, et al. Expires January 7, 2020 [Page 7] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 description "Administratively enable/disable Tree SID replication policy."; } leaf oper-state { type boolean; default false; config false; description "Tree SID replication policy operational state based on users."; } list candidate-path { description "Candidate path is Tree SID or SID list representing a unique path from root to a specific endpoint using the tree-id constraint."; key "candidate-path-name"; uses candidate-path-key; leaf admin-state { type boolean; default false; description "Administratively enable/disable Tree SID candidate path."; } leaf oper-state { type boolean; default false; config false; description "candidate-path operational state based on ilm programming."; } leaf plsp-id { type uint32; default 0; description "PLSP-ID is an unique identifier assigned by controler and remain unchanged througout the life of a LSP(candidate path)."; } leaf preference { type uint32; default 100; description "Preference determines the best preferred candidate-path among list of candiate path towards a leaf. Higher preference is choosen."; } Bidgoli, et al. Expires January 7, 2020 [Page 8] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 leaf incoming-replication-sid{ type uint32; default 0; description "The incoming label for transit and leaf routers, root it is 0"; } leaf operation { type enumeration { enum push { value 0; } enum pop { value 1; } enum swap { value 2; } } default push; description "Label operation"; } list next-hop-id { description "Identifies each nexthop in a candidate path."; key "next-hop-id"; uses next-hop-id-key; leaf next-hop-address { type inet:ipv4-address; default 0.0.0.0; description "Nexthop address of the desitnation."; } leaf next-hop-interface-name { type if:interface-ref; description "Next hop out going interface."; } leaf protect-nexthop-id { type uint32; description "Nexthop protection id."; } leaf weight { type uint32; description "weight for weighted load balancing"; } choice label { Bidgoli, et al. Expires January 7, 2020 [Page 9] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 list outgoing-replication-sid { key index; uses sid-list-key; description "Outgoing replication label for this nexthop."; } list outgoing-sr-policy-sid-list { key index; uses sr-policy-sid-key; description "Outgoing sr-policy sid for this nexthop."; } leaf outgoing-sr-policy { type string; description "SR policy name to be referrenced"; } } } } } } // -------------------------- GROUPINGS --------------------------- grouping p2mp-policy-key { leaf p2mp-policy-name { type string; description "P2MP policy name to be referrenced by mvpn pmsi."; } } grouping replication-policy-key { leaf replication-policy-name { type string; description "Replication policy name to be referrenced by mvpn pmsi."; } } grouping leaf-list-key { leaf leaf-address{ type inet:ipv4-address; description "leaf address of the this p2mp-tree"; } } Bidgoli, et al. Expires January 7, 2020 [Page 10] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 grouping candidate-path-key { leaf candidate-path-name { type string; description "A candidate path name equivalent to a LSP."; } leaf origin { type enumeration { enum pcep { value 10; } enum bgp-sr-policy { value 20; } enum configuration { value 30; } } description "Protocol-Origin of a candidate path is an 8-bit value which identifies the component or protocol that originates or signals the candidate path."; } leaf originator-asn { type uint32; description "represented as a 4 byte number"; } leaf originator-node-address { type inet:ipv4-address; description "128 bit value, IPv4 address are encoded in lower 32 bit."; } leaf descriminator { type uint32; description "The Discriminator is a 32 bit value associated with a candidate path that uniquely identifies it within the context of an SR Policy from a specific Protocol-Origin"; } } grouping next-hop-id-key { leaf next-hop-id { type uint32; description "Nexthop group index"; } Bidgoli, et al. Expires January 7, 2020 [Page 11] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 } grouping sid-list-key { leaf index { type uint32 { range 1..2; } } } grouping sr-policy-sid-key { leaf index { type uint32 { range 1..12; } description "Index for push-label."; } } } 6. IANA Considerations This document contains no actions for IANA. 7. Security Considerations TBD 8. References 8.1. Normative References 8.2. Informative References [sr-p2mp-policy] D. Yoyer, Ed., C. Hassen, K. Gillis, C. Filsfils, R. Parekh, H.Bidgoli, "SR Replication Policy for P2MP Service Delivery", draft-voyer-spring-sr-p2mp-policy-01, April 2019. 7. Acknowledgments Authors' Addresses Bidgoli, et al. Expires January 7, 2020 [Page 12] Internet-Draft YANG Data Model for P2MP SR Policy July 6, 2019 Hooman Bidgoli Nokia 600 March Rd. Ottawa, Ontario K2K 2E6 Canada Email: hooman.bidgoli@nokia.com Daniel Voyer Bell Canada Montreal CA Email: daniel.voyer@bell.ca Tanmoy kundu nokia Montain View US Email: tanmoy.kundu@nokia.com Jayant Kotalwar nokia Montain View US Email: jayant.kotalwar@nokia.com Rishabh Parekh Cisco Systems, Inc. San Jose US Email: riparekh@cisco.com Tarek Saad Juniper Networks Email: tssad@juniper.net Bidgoli, et al. Expires January 7, 2020 [Page 13]