Network Working Group X. Liu Internet-Draft Jabil Intended status: Standards Track I. Bryskin Expires: May 3, 2018 Huawei Technologies V. Beeram Juniper Networks T. Saad Cisco Systems Inc H. Shah Ciena O. Gonzalez de Dios Telefonica October 30, 2017 YANG Data Model for Layer 3 TE Topologies draft-liu-teas-yang-l3-te-topo-05 Abstract This document defines a YANG data model for layer 3 traffic engineering topologies. 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 May 3, 2018. Copyright Notice Copyright (c) 2017 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 Liu, et al. Expires May 3, 2018 [Page 1] Internet-Draft YANG L3 TE Topology October 2017 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 1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3 2. Modeling Considerations . . . . . . . . . . . . . . . . . . . 3 2.1. Relationship Between Layer 3 Topology and TE topology . . 3 2.2. Relationship Modeling . . . . . . . . . . . . . . . . . . 3 3. Model Structure . . . . . . . . . . . . . . . . . . . . . . . 3 3.1. Layer 3 TE Topology Module . . . . . . . . . . . . . . . 3 3.2. Packet Switching TE Topology Module . . . . . . . . . . . 4 4. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 18 4.1. Layer 3 TE Topology Module . . . . . . . . . . . . . . . 18 4.2. Packet Switching TE Topology Module . . . . . . . . . . . 22 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 27 6. Security Considerations . . . . . . . . . . . . . . . . . . . 28 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.1. Normative References . . . . . . . . . . . . . . . . . . 28 7.2. Informative References . . . . . . . . . . . . . . . . . 29 Appendix A. Companion YANG Model for Non-NMDA Compliant Implementations . . . . . . . . . . . . . . . . . . 30 A.1. Layer 3 TE Topology State Module . . . . . . . . . . . . 30 A.2. Packet Switching TE Topology State Module . . . . . . . . 32 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 36 1. Introduction This document defines a YANG [RFC7950] data model for describing the relationship between a layer 3 network topology [I-D.ietf-i2rs-yang-l3-topology] and a TE topology [I-D.ietf-teas-yang-te-topo]. When traffic engineering is enabled on a layer 3 network topology, there will be a corresponding TE topology. The TE topology may or may not be congruent to the layer 3 network topology. When such a congruent TE topology exists, there will be a one-to-one association between the one modeling element in the layer 3 topology to another element in the TE topology. When such a congruent TE topology does not exist, the association will not be one-to-one. This YANG data model allows both cases. Liu, et al. Expires May 3, 2018 [Page 2] Internet-Draft YANG L3 TE Topology October 2017 1.1. Terminology The keywords "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, [RFC2119]. The following terms are defined in [RFC7950] and are not redefined here: o augment o data model o data node 2. Modeling Considerations 2.1. Relationship Between Layer 3 Topology and TE topology In general, layer 3 network topology model and TE topology model can be used independently. When traffic engineering is enabled on a layer 3 network topology, there will be associations between objects in layer 3 network topologies and objects in TE topologies. The properties of these relations are: o The associations are between objects of the same class, i.e. node to node or link to link. o The multiplicity of such an association is: 0..1 to 0..1. An object in a layer 3 network may have zero or one associated object in the corresponding TE network. 2.2. Relationship Modeling YANG data type leafref is used to model the association relationship between a layer 3 network topology and a TE topology. YANG must statements are used to enforce the referenced objects are in the topologies of proper type. 3. Model Structure 3.1. Layer 3 TE Topology Module The model tree structure of the layer 3 TE topology module is as shown below: Liu, et al. Expires May 3, 2018 [Page 3] Internet-Draft YANG L3 TE Topology October 2017 module: ietf-l3-te-topology augment /nd:networks/nd:network/nd:network-types /l3t:l3-unicast-topology: +--rw l3-te! augment /nd:networks/nd:network/l3t:l3-topology-attributes: +--rw l3-te-topology-attributes +--rw network-ref? -> /nw:networks/network/network-id augment /nd:networks/nd:network/nd:node/l3t:l3-node-attributes: +--rw l3-te-node-attributes +--rw node-ref? -> /nw:networks /network[nw:network-id=current()/../network-ref]/node/node-id +--rw network-ref? -> /nw:networks/network/network-id augment /nd:networks/nd:network/nd:node/lnk:termination-point /l3t:l3-termination-point-attributes: +--rw l3-te-tp-attributes +--rw tp-ref? -> /nw:networks /network[nw:network-id=current()/../network-ref] /node[nw:node-id=current()/../node-ref]/nt:termination-point/tp-id +--rw node-ref? -> /nw:networks /network[nw:network-id=current()/../network-ref]/node/node-id +--rw network-ref? -> /nw:networks/network/network-id augment /nd:networks/nd:network/lnk:link/l3t:l3-link-attributes: +--rw l3-te-link-attributes +--rw link-ref? -> /nw:networks /network[nw:network-id=current()/../network-ref]/nt:link/link-id +--rw network-ref? -> /nw:networks/network/network-id 3.2. Packet Switching TE Topology Module This is an augmentation to base TE topology model. module: ietf-te-topology-packet augment /nd:networks/nd:network/nd:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices: +--rw performance-metric +--rw measurement | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 Liu, et al. Expires May 3, 2018 [Page 4] Internet-Draft YANG L3 TE Topology October 2017 +--rw normality | +--rw unidirectional-delay? te-types:performance-metric-normality | +--rw unidirectional-min-delay? te-types:performance-metric-normality | +--rw unidirectional-max-delay? te-types:performance-metric-normality | +--rw unidirectional-delay-variation? te-types:performance-metric-normality | +--rw unidirectional-packet-loss? te-types:performance-metric-normality | +--rw unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-available-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--rw throttle +--rw unidirectional-delay-offset? uint32 +--rw measure-interval? uint32 +--rw advertisement-interval? uint32 +--rw suppression-interval? uint32 +--rw threshold-out | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-in | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-accelerated-advertisement +--rw unidirectional-delay? uint32 Liu, et al. Expires May 3, 2018 [Page 5] Internet-Draft YANG L3 TE Topology October 2017 +--rw unidirectional-min-delay? uint32 +--rw unidirectional-max-delay? uint32 +--rw unidirectional-delay-variation? uint32 +--rw unidirectional-packet-loss? decimal64 +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/nd:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix: +--rw performance-metric +--rw measurement | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw normality | +--rw unidirectional-delay? te-types:performance-metric-normality | +--rw unidirectional-min-delay? te-types:performance-metric-normality | +--rw unidirectional-max-delay? te-types:performance-metric-normality | +--rw unidirectional-delay-variation? te-types:performance-metric-normality | +--rw unidirectional-packet-loss? te-types:performance-metric-normality | +--rw unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-available-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--rw throttle +--rw unidirectional-delay-offset? uint32 +--rw measure-interval? uint32 +--rw advertisement-interval? uint32 +--rw suppression-interval? uint32 Liu, et al. Expires May 3, 2018 [Page 6] Internet-Draft YANG L3 TE Topology October 2017 +--rw threshold-out | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-in | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-accelerated-advertisement +--rw unidirectional-delay? uint32 +--rw unidirectional-min-delay? uint32 +--rw unidirectional-max-delay? uint32 +--rw unidirectional-delay-variation? uint32 +--rw unidirectional-packet-loss? decimal64 +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/nd:node/tet:te /tet:information-source-entry/tet:connectivity-matrices: +--ro performance-metric +--ro measurement | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? Liu, et al. Expires May 3, 2018 [Page 7] Internet-Draft YANG L3 TE Topology October 2017 rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro normality | +--ro unidirectional-delay? te-types:performance-metric-normality | +--ro unidirectional-min-delay? te-types:performance-metric-normality | +--ro unidirectional-max-delay? te-types:performance-metric-normality | +--ro unidirectional-delay-variation? te-types:performance-metric-normality | +--ro unidirectional-packet-loss? te-types:performance-metric-normality | +--ro unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--ro unidirectional-available-bandwidth? te-types:performance-metric-normality | +--ro unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--ro throttle +--ro unidirectional-delay-offset? uint32 +--ro measure-interval? uint32 +--ro advertisement-interval? uint32 +--ro suppression-interval? uint32 +--ro threshold-out | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro threshold-in | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? Liu, et al. Expires May 3, 2018 [Page 8] Internet-Draft YANG L3 TE Topology October 2017 rt-types:bandwidth-ieee-float32 +--ro threshold-accelerated-advertisement +--ro unidirectional-delay? uint32 +--ro unidirectional-min-delay? uint32 +--ro unidirectional-max-delay? uint32 +--ro unidirectional-delay-variation? uint32 +--ro unidirectional-packet-loss? decimal64 +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/nd:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix: +--ro performance-metric +--ro measurement | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro normality | +--ro unidirectional-delay? te-types:performance-metric-normality | +--ro unidirectional-min-delay? te-types:performance-metric-normality | +--ro unidirectional-max-delay? te-types:performance-metric-normality | +--ro unidirectional-delay-variation? te-types:performance-metric-normality | +--ro unidirectional-packet-loss? te-types:performance-metric-normality | +--ro unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--ro unidirectional-available-bandwidth? te-types:performance-metric-normality | +--ro unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--ro throttle +--ro unidirectional-delay-offset? uint32 Liu, et al. Expires May 3, 2018 [Page 9] Internet-Draft YANG L3 TE Topology October 2017 +--ro measure-interval? uint32 +--ro advertisement-interval? uint32 +--ro suppression-interval? uint32 +--ro threshold-out | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro threshold-in | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro threshold-accelerated-advertisement +--ro unidirectional-delay? uint32 +--ro unidirectional-min-delay? uint32 +--ro unidirectional-max-delay? uint32 +--ro unidirectional-delay-variation? uint32 +--ro unidirectional-packet-loss? decimal64 +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/nd:node/tet:te /tet:tunnel-termination-point/tet:local-link-connectivities: +--rw performance-metric +--rw measurement | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 Liu, et al. Expires May 3, 2018 [Page 10] Internet-Draft YANG L3 TE Topology October 2017 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw normality | +--rw unidirectional-delay? te-types:performance-metric-normality | +--rw unidirectional-min-delay? te-types:performance-metric-normality | +--rw unidirectional-max-delay? te-types:performance-metric-normality | +--rw unidirectional-delay-variation? te-types:performance-metric-normality | +--rw unidirectional-packet-loss? te-types:performance-metric-normality | +--rw unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-available-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--rw throttle +--rw unidirectional-delay-offset? uint32 +--rw measure-interval? uint32 +--rw advertisement-interval? uint32 +--rw suppression-interval? uint32 +--rw threshold-out | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-in | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 Liu, et al. Expires May 3, 2018 [Page 11] Internet-Draft YANG L3 TE Topology October 2017 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-accelerated-advertisement +--rw unidirectional-delay? uint32 +--rw unidirectional-min-delay? uint32 +--rw unidirectional-max-delay? uint32 +--rw unidirectional-delay-variation? uint32 +--rw unidirectional-packet-loss? decimal64 +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/nd:node/tet:te /tet:tunnel-termination-point/tet:local-link-connectivities /tet:local-link-connectivity: +--rw performance-metric +--rw measurement | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw normality | +--rw unidirectional-delay? te-types:performance-metric-normality | +--rw unidirectional-min-delay? te-types:performance-metric-normality | +--rw unidirectional-max-delay? te-types:performance-metric-normality | +--rw unidirectional-delay-variation? te-types:performance-metric-normality | +--rw unidirectional-packet-loss? te-types:performance-metric-normality | +--rw unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-available-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-utilized-bandwidth? Liu, et al. Expires May 3, 2018 [Page 12] Internet-Draft YANG L3 TE Topology October 2017 te-types:performance-metric-normality +--rw throttle +--rw unidirectional-delay-offset? uint32 +--rw measure-interval? uint32 +--rw advertisement-interval? uint32 +--rw suppression-interval? uint32 +--rw threshold-out | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-in | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-accelerated-advertisement +--rw unidirectional-delay? uint32 +--rw unidirectional-min-delay? uint32 +--rw unidirectional-max-delay? uint32 +--rw unidirectional-delay-variation? uint32 +--rw unidirectional-packet-loss? decimal64 +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes: +--rw performance-metric +--rw measurement | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 Liu, et al. Expires May 3, 2018 [Page 13] Internet-Draft YANG L3 TE Topology October 2017 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw normality | +--rw unidirectional-delay? te-types:performance-metric-normality | +--rw unidirectional-min-delay? te-types:performance-metric-normality | +--rw unidirectional-max-delay? te-types:performance-metric-normality | +--rw unidirectional-delay-variation? te-types:performance-metric-normality | +--rw unidirectional-packet-loss? te-types:performance-metric-normality | +--rw unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-available-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--rw throttle +--rw unidirectional-delay-offset? uint32 +--rw measure-interval? uint32 +--rw advertisement-interval? uint32 +--rw suppression-interval? uint32 +--rw threshold-out | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-in | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 Liu, et al. Expires May 3, 2018 [Page 14] Internet-Draft YANG L3 TE Topology October 2017 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-accelerated-advertisement +--rw unidirectional-delay? uint32 +--rw unidirectional-min-delay? uint32 +--rw unidirectional-max-delay? uint32 +--rw unidirectional-delay-variation? uint32 +--rw unidirectional-packet-loss? decimal64 +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/lnk:link/tet:te /tet:te-link-attributes: +--rw performance-metric +--rw measurement | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw normality | +--rw unidirectional-delay? te-types:performance-metric-normality | +--rw unidirectional-min-delay? te-types:performance-metric-normality | +--rw unidirectional-max-delay? te-types:performance-metric-normality | +--rw unidirectional-delay-variation? te-types:performance-metric-normality | +--rw unidirectional-packet-loss? te-types:performance-metric-normality | +--rw unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--rw unidirectional-available-bandwidth? Liu, et al. Expires May 3, 2018 [Page 15] Internet-Draft YANG L3 TE Topology October 2017 te-types:performance-metric-normality | +--rw unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--rw throttle +--rw unidirectional-delay-offset? uint32 +--rw measure-interval? uint32 +--rw advertisement-interval? uint32 +--rw suppression-interval? uint32 +--rw threshold-out | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-in | +--rw unidirectional-delay? uint32 | +--rw unidirectional-min-delay? uint32 | +--rw unidirectional-max-delay? uint32 | +--rw unidirectional-delay-variation? uint32 | +--rw unidirectional-packet-loss? decimal64 | +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--rw threshold-accelerated-advertisement +--rw unidirectional-delay? uint32 +--rw unidirectional-min-delay? uint32 +--rw unidirectional-max-delay? uint32 +--rw unidirectional-delay-variation? uint32 +--rw unidirectional-packet-loss? decimal64 +--rw unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--rw unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/nd:network/lnk:link/tet:te /tet:information-source-entry: +--ro performance-metric +--ro measurement Liu, et al. Expires May 3, 2018 [Page 16] Internet-Draft YANG L3 TE Topology October 2017 | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro normality | +--ro unidirectional-delay? te-types:performance-metric-normality | +--ro unidirectional-min-delay? te-types:performance-metric-normality | +--ro unidirectional-max-delay? te-types:performance-metric-normality | +--ro unidirectional-delay-variation? te-types:performance-metric-normality | +--ro unidirectional-packet-loss? te-types:performance-metric-normality | +--ro unidirectional-residual-bandwidth? te-types:performance-metric-normality | +--ro unidirectional-available-bandwidth? te-types:performance-metric-normality | +--ro unidirectional-utilized-bandwidth? te-types:performance-metric-normality +--ro throttle +--ro unidirectional-delay-offset? uint32 +--ro measure-interval? uint32 +--ro advertisement-interval? uint32 +--ro suppression-interval? uint32 +--ro threshold-out | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro threshold-in | +--ro unidirectional-delay? uint32 | +--ro unidirectional-min-delay? uint32 Liu, et al. Expires May 3, 2018 [Page 17] Internet-Draft YANG L3 TE Topology October 2017 | +--ro unidirectional-max-delay? uint32 | +--ro unidirectional-delay-variation? uint32 | +--ro unidirectional-packet-loss? decimal64 | +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 | +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 +--ro threshold-accelerated-advertisement +--ro unidirectional-delay? uint32 +--ro unidirectional-min-delay? uint32 +--ro unidirectional-max-delay? uint32 +--ro unidirectional-delay-variation? uint32 +--ro unidirectional-packet-loss? decimal64 +--ro unidirectional-residual-bandwidth? rt-types:bandwidth-ieee-float32 +--ro unidirectional-available-bandwidth? rt-types:bandwidth-ieee-float32 +--ro unidirectional-utilized-bandwidth? rt-types:bandwidth-ieee-float32 augment /nd:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:interface-switching-capability: +--rw packet-switch-capable +--rw minimum-lsp-bandwidth? rt-types:bandwidth-ieee-float32 +--rw interface-mtu? uint16 augment /nd:networks/nd:network/lnk:link/tet:te /tet:te-link-attributes/tet:interface-switching-capability: +--rw packet-switch-capable +--rw minimum-lsp-bandwidth? rt-types:bandwidth-ieee-float32 +--rw interface-mtu? uint16 augment /nd:networks/nd:network/lnk:link/tet:te /tet:information-source-entry/tet:interface-switching-capability: +--ro packet-switch-capable +--ro minimum-lsp-bandwidth? rt-types:bandwidth-ieee-float32 +--ro interface-mtu? uint16 4. YANG Modules 4.1. Layer 3 TE Topology Module file "ietf-l3-te-topology@2017-07-03.yang" module ietf-l3-te-topology { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-l3-te-topology"; prefix "l3tet"; Liu, et al. Expires May 3, 2018 [Page 18] Internet-Draft YANG L3 TE Topology October 2017 import ietf-network { prefix "nd"; } import ietf-network-topology { prefix "lnk"; } import ietf-l3-unicast-topology { prefix "l3t"; } import ietf-te-topology { prefix "tet"; } organization "TBD"; contact "TBD"; description "L3 TE Topology model"; revision 2017-07-03 { description "Initial revision"; reference "TBD"; } grouping l3-te-topology-type { description "Identifies the L3 TE topology type."; container l3-te { presence "indiates L3 TE Topology"; description "Its presence identifies the L3 TE topology type."; } } augment "/nd:networks/nd:network/nd:network-types/" + "l3t:l3-unicast-topology" { description "Defines the L3 TE topology type."; uses l3-te-topology-type; } augment "/nd:networks/nd:network/l3t:l3-topology-attributes" { when "../nd:network-types/l3t:l3-unicast-topology/l3-te" { description "Augment only for L3 TE topology"; } description "Augment topology configuration"; uses l3-te-topology-attributes; } Liu, et al. Expires May 3, 2018 [Page 19] Internet-Draft YANG L3 TE Topology October 2017 augment "/nd:networks/nd:network/nd:node/l3t:l3-node-attributes" { when "../../nd:network-types/l3t:l3-unicast-topology/l3-te" { description "Augment only for L3 TE topology"; } description "Augment node configuration"; uses l3-te-node-attributes; } augment "/nd:networks/nd:network/nd:node/lnk:termination-point/" + "l3t:l3-termination-point-attributes" { when "../../../nd:network-types/l3t:l3-unicast-topology/" + "l3-te" { description "Augment only for L3 TE topology"; } description "Augment termination point configuration"; uses l3-te-tp-attributes; } augment "/nd:networks/nd:network/lnk:link/l3t:l3-link-attributes" { when "../../nd:network-types/l3t:l3-unicast-topology/l3-te" { description "Augment only for L3 TE topology"; } description "Augment link configuration"; uses l3-te-link-attributes; } grouping l3-te-topology-attributes { description "L3 TE topology scope attributes"; container l3-te-topology-attributes { must "/nd:networks/nd:network" + "[nd:network-id = current()/network-ref]/nd:network-types/" + "tet:te-topology" { error-message "The referenced network must be a TE topology."; description "The referenced network must be a TE topology."; } description "Containing TE topology references"; uses nd:network-ref; } // l3-te-topology-attributes } // l3-te-topology-attributes grouping l3-te-node-attributes { description "L3 TE node scope attributes"; container l3-te-node-attributes { must "/nd:networks/nd:network" + "[nd:network-id = current()/network-ref]/nd:network-types/" + "tet:te-topology" { Liu, et al. Expires May 3, 2018 [Page 20] Internet-Draft YANG L3 TE Topology October 2017 error-message "The referenced network must be a TE topology."; description "The referenced network must be a TE topology."; } description "Containing TE node references"; uses nd:node-ref; } // l3-te } // l3-te-node-attributes grouping l3-te-tp-attributes { description "L3 TE termination point scope attributes"; container l3-te-tp-attributes { must "/nd:networks/nd:network" + "[nd:network-id = current()/network-ref]/nd:network-types/" + "tet:te-topology" { error-message "The referenced network must be a TE topology."; description "The referenced network must be a TE topology."; } description "Containing TE termination point references"; uses lnk:tp-ref; } // l3-te } // l3-te-tp-attributes grouping l3-te-link-attributes { description "L3 TE link scope attributes"; container l3-te-link-attributes { must "/nd:networks/nd:network" + "[nd:network-id = current()/network-ref]/nd:network-types/" + "tet:te-topology" { error-message "The referenced network must be a TE topology."; description "The referenced network must be a TE topology."; } description "Containing TE link references"; uses lnk:link-ref; } } // l3-te-link-attributes } Liu, et al. Expires May 3, 2018 [Page 21] Internet-Draft YANG L3 TE Topology October 2017 4.2. Packet Switching TE Topology Module file "ietf-te-topology-packet@2017-10-29.yang" module ietf-te-topology-packet { yang-version 1; namespace "urn:ietf:params:xml:ns:yang:ietf-te-topology-packet"; prefix "tet-pkt"; import ietf-network { prefix "nd"; } import ietf-network-topology { prefix "lnk"; } import ietf-routing-types { prefix "rt-types"; } import ietf-te-topology { prefix "tet"; } import ietf-te-types { prefix "te-types"; } organization "Traffic Engineering Architecture and Signaling (TEAS) Working Group"; contact "WG Web: WG List: WG Chair: Lou Berger WG Chair: Vishnu Pavan Beeram Editors: Xufeng Liu Igor Bryskin Liu, et al. Expires May 3, 2018 [Page 22] Internet-Draft YANG L3 TE Topology October 2017 Vishnu Pavan Beeram Tarek Saad Himanshu Shah Oscar Gonzalez De Dios "; description "TE topology model"; revision 2017-10-29 { description "Initial revision"; reference "TBD"; } /* * Features */ feature te-performance-metric { description "This feature indicates that the system supports TE performance metric."; reference "RFC7471: OSPF Traffic Engineering (TE) Metric Extensions. RFC7810: IS-IS Traffic Engineering (TE) Metric Extensions. RFC7823: Performance-Based Path Selection for Explicitly Routed Label Switched Paths (LSPs) Using TE Metric Extensions"; } /* * Groupings */ grouping packet-switch-capable-container { description "The container of packet switch capable attributes."; container packet-switch-capable { description "Interface has packet-switching capabilities."; leaf minimum-lsp-bandwidth { type rt-types:bandwidth-ieee-float32; Liu, et al. Expires May 3, 2018 [Page 23] Internet-Draft YANG L3 TE Topology October 2017 description "Minimum LSP Bandwidth. Units in bytes per second"; } leaf interface-mtu { type uint16; description "Interface MTU."; } } } /* * Augmentations */ /* Augmentations to connectivity-matrix */ augment "/nd:networks/nd:network/nd:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } augment "/nd:networks/nd:network/nd:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } augment "/nd:networks/nd:network/nd:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } augment "/nd:networks/nd:network/nd:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix" { Liu, et al. Expires May 3, 2018 [Page 24] Internet-Draft YANG L3 TE Topology October 2017 description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } /* Augmentations to tunnel-termination-point */ augment "/nd:networks/nd:network/nd:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } augment "/nd:networks/nd:network/nd:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } /* Augmentations to te-link-attributes */ augment "/nd:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes" { when "tet:interface-switching-capability " + "[tet:switching-capability = 'te-types:switching-psc1']" { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } augment "/nd:networks/nd:network/lnk:link/tet:te/" + "tet:te-link-attributes" { when "tet:interface-switching-capability " + "[tet:switching-capability = 'te-types:switching-psc1']" { description "Valid only for PSC"; Liu, et al. Expires May 3, 2018 [Page 25] Internet-Draft YANG L3 TE Topology October 2017 } description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } augment "/nd:networks/nd:network/lnk:link/tet:te/" + "tet:information-source-entry" { when "tet:interface-switching-capability " + "[tet:switching-capability = 'te-types:switching-psc1']" { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature te-performance-metric; } } /* Augmentations to interface-switching-capability */ augment "/nd:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:interface-switching-capability" { when "tet:switching-capability = 'te-types:switching-psc1' " { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses packet-switch-capable-container; } augment "/nd:networks/nd:network/lnk:link/tet:te/" + "tet:te-link-attributes/" + "tet:interface-switching-capability" { when "tet:switching-capability = 'te-types:switching-psc1' " { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses packet-switch-capable-container; } augment "/nd:networks/nd:network/lnk:link/tet:te/" + "tet:information-source-entry/" + "tet:interface-switching-capability" { when "tet:switching-capability = 'te-types:switching-psc1' " { Liu, et al. Expires May 3, 2018 [Page 26] Internet-Draft YANG L3 TE Topology October 2017 description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses packet-switch-capable-container; } } 5. IANA Considerations RFC Ed.: In this section, replace all occurrences of 'XXXX' with the actual RFC number (and remove this note). This document registers the following namespace URIs in the IETF XML registry [RFC3688]: -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-l3-te-topology Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-l3-te-topology-state Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-te-topology-packet Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- -------------------------------------------------------------------- URI: urn:ietf:params:xml:ns:yang:ietf-te-topology-packet-state Registrant Contact: The IESG. XML: N/A, the requested URI is an XML namespace. -------------------------------------------------------------------- This document registers the following YANG modules in the YANG Module Names registry [RFC6020]: Liu, et al. Expires May 3, 2018 [Page 27] Internet-Draft YANG L3 TE Topology October 2017 -------------------------------------------------------------------- name: ietf-l3-te-topology namespace: urn:ietf:params:xml:ns:yang:ietf-l3-te-topology prefix: l3te reference: RFC XXXX -------------------------------------------------------------------- -------------------------------------------------------------------- name: ietf-l3-te-topology-state namespace: urn:ietf:params:xml:ns:yang:ietf-l3-te-topology-state prefix: l3te-s reference: RFC XXXX -------------------------------------------------------------------- -------------------------------------------------------------------- name: ietf-te-topology-packet namespace: urn:ietf:params:xml:ns:yang:ietf-te-topology-packet prefix: tet-pkt reference: RFC XXXX -------------------------------------------------------------------- -------------------------------------------------------------------- name: ietf-te-topology-packet-state namespace: urn:ietf:params:xml:ns:yang:ietf-te-topology-packet-state prefix: tet-pkt-s reference: RFC XXXX -------------------------------------------------------------------- 6. Security Considerations The configuration, state, action and notification data defined in this document are designed to be accessed via the NETCONF protocol [RFC6241]. The data-model by itself does not create any security implications. The security considerations for the NETCONF protocol are applicable. The NETCONF protocol used for sending the data supports authentication and encryption. 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, . Liu, et al. Expires May 3, 2018 [Page 28] Internet-Draft YANG L3 TE Topology October 2017 [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August 2016, . [I-D.ietf-netmod-revised-datastores] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K., and R. Wilton, "Network Management Datastore Architecture", draft-ietf-netmod-revised-datastores-05 (work in progress), October 2017. 7.2. Informative References [I-D.ietf-i2rs-yang-l3-topology] Clemm, A., Medved, J., Varga, R., Liu, X., Ananthakrishnan, H., and N. Bahadur, "A YANG Data Model for Layer 3 Topologies", draft-ietf-i2rs-yang- l3-topology-12 (work in progress), October 2017. [I-D.ietf-teas-yang-te-topo] Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and O. Dios, "YANG Data Model for TE Topologies", draft-ietf- teas-yang-te-topo-12 (work in progress), July 2017. Liu, et al. Expires May 3, 2018 [Page 29] Internet-Draft YANG L3 TE Topology October 2017 Appendix A. Companion YANG Model for Non-NMDA Compliant Implementations The YANG modules ietf-l3-te-topology and ietf-te-topology-packet defined in this document are designed to be used in conjunction with implementations that support the Network Management Datastore Architecture (NMDA) defined in [I-D.ietf-netmod-revised-datastores]. In order to allow implementations to use the model even in cases when NMDA is not supported, the following companion modules, ietf-l3-te- topology-state and ietf-te-topology-packet-state, are defined as state models, which mirror the modules ietf-l3-te-topology and ietf- te-topology-packet defined earlier in this document. However, all data nodes in the companion module are non-configurable, to represent the applied configuration or the derived operational states. The companion modules, ietf-l3-te-topology-state and ietf-te- topology-packet-state, are redundant and SHOULD NOT be supported by implementations that support NMDA. As the structure of the companion modules mirrors that of the coorespinding NMDA models, the YANG trees of the companion modules are not depicted separately. A.1. Layer 3 TE Topology State Module file "ietf-l3-te-topology-state@2017-07-03.yang" module ietf-l3-te-topology-state { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-l3-te-topology-state"; prefix "l3tet-s"; import ietf-l3-te-topology { prefix "l3tet"; } import ietf-network-state { prefix "nd-s"; } import ietf-network-topology-state { prefix "lnk-s"; } import ietf-l3-unicast-topology-state { prefix "l3t-s"; } organization "TBD"; contact "TBD"; description "L3 TE Topology model"; Liu, et al. Expires May 3, 2018 [Page 30] Internet-Draft YANG L3 TE Topology October 2017 revision 2017-07-03 { description "Initial revision"; reference "TBD"; } augment "/nd-s:networks/nd-s:network/nd-s:network-types/" + "l3t-s:l3-unicast-topology" { description "Defines the L3 TE topology type."; uses l3tet:l3-te-topology-type; } augment "/nd-s:networks/nd-s:network/" + "l3t-s:l3-topology-attributes" { when "../nd-s:network-types/l3t-s:l3-unicast-topology/l3-te" { description "Augment only for L3 TE topology"; } description "Augment topology configuration"; uses l3tet:l3-te-topology-attributes; } augment "/nd-s:networks/nd-s:network/nd-s:node/" + "l3t-s:l3-node-attributes" { when "../../nd-s:network-types/l3t-s:l3-unicast-topology/l3-te" { description "Augment only for L3 TE topology"; } description "Augment node configuration"; uses l3tet:l3-te-node-attributes; } augment "/nd-s:networks/nd-s:network/nd-s:node/" + "lnk-s:termination-point/" + "l3t-s:l3-termination-point-attributes" { when "../../../nd-s:network-types/l3t-s:l3-unicast-topology/" + "l3-te" { description "Augment only for L3 TE topology"; } description "Augment termination point configuration"; uses l3tet:l3-te-tp-attributes; } augment "/nd-s:networks/nd-s:network/lnk-s:link/" + "l3t-s:l3-link-attributes" { when "../../nd-s:network-types/l3t-s:l3-unicast-topology/l3-te" { description "Augment only for L3 TE topology"; } description "Augment link configuration"; Liu, et al. Expires May 3, 2018 [Page 31] Internet-Draft YANG L3 TE Topology October 2017 uses l3tet:l3-te-link-attributes; } } A.2. Packet Switching TE Topology State Module file "ietf-te-topology-packet-state@2017-10-29.yang" module ietf-te-topology-packet-state { yang-version 1; namespace "urn:ietf:params:xml:ns:yang:ietf-te-topology-packet-state"; prefix "tet-pkt-s"; import ietf-te-topology-packet { prefix "tet-pkt"; } import ietf-network-state { prefix "nd-s"; } import ietf-network-topology-state { prefix "lnk-s"; } import ietf-te-topology-state { prefix "tet-s"; } import ietf-te-types { prefix "te-types"; } organization "Traffic Engineering Architecture and Signaling (TEAS) Working Group"; contact "WG Web: WG List: WG Chair: Lou Berger Liu, et al. Expires May 3, 2018 [Page 32] Internet-Draft YANG L3 TE Topology October 2017 WG Chair: Vishnu Pavan Beeram Editors: Xufeng Liu Igor Bryskin Vishnu Pavan Beeram Tarek Saad Himanshu Shah Oscar Gonzalez De Dios "; description "TE topology model"; revision 2017-10-29 { description "Initial revision"; reference "TBD"; } /* * Augmentations */ /* Augmentations to connectivity-matrix */ augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te/" + "tet-s:te-node-attributes/tet-s:connectivity-matrices" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te/" + "tet-s:te-node-attributes/tet-s:connectivity-matrices/" + "tet-s:connectivity-matrix" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; Liu, et al. Expires May 3, 2018 [Page 33] Internet-Draft YANG L3 TE Topology October 2017 } } augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te/" + "tet-s:information-source-entry/" + "tet-s:connectivity-matrices" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te/" + "tet-s:information-source-entry/" + "tet-s:connectivity-matrices/" + "tet-s:connectivity-matrix" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } /* Augmentations to tunnel-termination-point */ augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te/" + "tet-s:tunnel-termination-point/" + "tet-s:local-link-connectivities" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } augment "/nd-s:networks/nd-s:network/nd-s:node/tet-s:te/" + "tet-s:tunnel-termination-point/" + "tet-s:local-link-connectivities/" + "tet-s:local-link-connectivity" { description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } /* Augmentations to te-link-attributes */ augment "/nd-s:networks/tet-s:te/tet-s:templates/" Liu, et al. Expires May 3, 2018 [Page 34] Internet-Draft YANG L3 TE Topology October 2017 + "tet-s:link-template/tet-s:te-link-attributes" { when "tet-s:interface-switching-capability " + "[tet-s:switching-capability = 'te-types:switching-psc1']" { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } augment "/nd-s:networks/nd-s:network/lnk-s:link/tet-s:te/" + "tet-s:te-link-attributes" { when "tet-s:interface-switching-capability " + "[tet-s:switching-capability = 'te-types:switching-psc1']" { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } augment "/nd-s:networks/nd-s:network/lnk-s:link/tet-s:te/" + "tet-s:information-source-entry" { when "tet-s:interface-switching-capability " + "[tet-s:switching-capability = 'te-types:switching-psc1']" { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses te-types:performance-metric-container { if-feature tet-pkt:te-performance-metric; } } /* Augmentations to interface-switching-capability */ augment "/nd-s:networks/tet-s:te/tet-s:templates/" + "tet-s:link-template/tet-s:te-link-attributes/" + "tet-s:interface-switching-capability" { when "tet-s:switching-capability = 'te-types:switching-psc1' " { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses tet-pkt:packet-switch-capable-container; Liu, et al. Expires May 3, 2018 [Page 35] Internet-Draft YANG L3 TE Topology October 2017 } augment "/nd-s:networks/nd-s:network/lnk-s:link/tet-s:te/" + "tet-s:te-link-attributes/" + "tet-s:interface-switching-capability" { when "tet-s:switching-capability = 'te-types:switching-psc1' " { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses tet-pkt:packet-switch-capable-container; } augment "/nd-s:networks/nd-s:network/lnk-s:link/tet-s:te/" + "tet-s:information-source-entry/" + "tet-s:interface-switching-capability" { when "tet-s:switching-capability = 'te-types:switching-psc1' " { description "Valid only for PSC"; } description "Parameters for PSC TE topology."; uses tet-pkt:packet-switch-capable-container; } } Authors' Addresses Xufeng Liu Jabil 8281 Greensboro Drive, Suite 200 McLean VA 22102 USA EMail: Xufeng_Liu@jabil.com Igor Bryskin Huawei Technologies EMail: Igor.Bryskin@huawei.com Liu, et al. Expires May 3, 2018 [Page 36] Internet-Draft YANG L3 TE Topology October 2017 Vishnu Pavan Beeram Juniper Networks EMail: vbeeram@juniper.net Tarek Saad Cisco Systems Inc EMail: tsaad@cisco.com Himanshu Shah Ciena EMail: hshah@ciena.com Oscar Gonzalez de Dios Telefonica EMail: oscar.gonzalezdedios@telefonica.com Liu, et al. Expires May 3, 2018 [Page 37]