TE Topology and Tunnel Modeling for Transport Networks
draft-ietf-teas-te-topo-and-tunnel-modeling-03
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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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This Internet-Draft will expire on April 22, 2019.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
Bryskin, et al. Expires April 22, 2019 [Page 1]
Internet-Draft TE Topology and Tunnel Modeling October 2018
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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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
Bryskin, et al. Expires April 22, 2019 [Page 2]
Internet-Draft TE Topology and Tunnel Modeling October 2018
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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