TE Topology and Tunnel Modeling for Transport Networks
draft-ietf-teas-te-topo-and-tunnel-modeling-03

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Last updated 2018-10-22
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TEAS Working Group                                         Igor Bryskin
Internet Draft                                      Huawei Technologies
Intended status: Informational                      Vishnu Pavan Beeram
                                                       Juniper Networks
                                                             Tarek Saad
                                                      Cisco Systems Inc
                                                             Xufeng Liu
                                                         Volta Networks

Expires: April 22, 2019                                October 22, 2018

          TE Topology and Tunnel Modeling for Transport Networks
              draft-ietf-teas-te-topo-and-tunnel-modeling-03

Status of this Memo

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Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors. All rights reserved.

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   This document is subject to BCP 78 and the IETF Trust's Legal
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Abstract

   This document describes how to model TE topologies and tunnels for
   transport networks, by using the TE topology YANG model [I-D.ietf-
   teas-yang-te-topo] and the TE tunnel YANG model [I-D.ietf-teas-yang-
   te].

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].

Table of Contents

   1. Modeling Considerations........................................3
      1.1. TE Topology Model.........................................3
      1.2. TE Topology Modeling Constructs...........................5
      1.3. Abstract TE Topology Calculation, Configuration and
      Maintenance...................................................22
         1.3.1. Single-Node Abstract TE Topology....................23
         1.3.2. Full Mesh Link Abstract TE Topology.................25
         1.3.3. Star-n-Spokes Abstract TE Topology..................27
         1.3.4. Arbitrary Abstract TE Topology......................28
         1.3.5. Customized Abstract TE Topologies...................29
         1.3.6. Hierarchical Abstract TE Topologies.................30
      1.4. Merging TE Topologies Provided By Multiple Providers.....31
         1.4.1. Dealing With Multiple Abstract TE Topologies Provided By
         The Same Provider..........................................34
      1.5. Configuring Abstract TE Topologies.......................36
      1.6. TE Tunnel Model..........................................37
      1.7. TE Tunnel/Transport Service Modeling Constructs..........39
         1.7.1. Bidirectional Tunnels...............................53
      1.8. Transport Service Mapping................................55
      1.9. Multi-Domain Transport Service Coordination..............56
   2. Use Cases.....................................................61

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      2.1. Use Case 1. Transport service control on a single layer
      multi-domain transport network................................61
      2.2. Use Case 2. End-to-end TE tunnel control on a single layer
      multi-domain transport network................................69
      2.3. Use Case 3. Transport service control on a ODUk/Och multi-
      domain transport network with Ethernet access links...........73
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