Yang model for requesting Path Computation
draft-busibel-teas-yang-path-computation-03

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Last updated 2017-06-30
Replaces draft-busibel-ccamp-path-computation-api
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TEAS Working Group                                     Italo Busi (Ed.)
Internet Draft                                                   Huawei
Intended status: Informational                     Sergio Belotti (Ed.)
Expires: December 2017                                            Nokia
                                                           Victor Lopez
                                                 Oscar Gonzalez de Dios
                                                             Telefonica
                                                          Anurag Sharma
                                                               Infinera
                                                                Yan Shi
                                                           China Unicom
                                                         Ricard Vilalta
                                                                   CTTC
                                                     Karthik Sethuraman
                                                                    NEC

                                                          June 30, 2017

               Yang model for requesting Path Computation
            draft-busibel-teas-yang-path-computation-03.txt

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Busi, Belotti, al.    Expires December 30, 2017                [Page 1]
Internet-DraftYang model for requesting Path Computation      June 2017

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Abstract

   There are scenarios, typically in a hierarchical SDN context, in
   which an orchestrator may not have detailed information to be able
   to perform an end-to-end path computation and would need to request
   lower layer/domain controllers to calculate some (partial) feasible
   paths.

   Multiple protocol solutions can be used for communication between
   different controller hierarchical levels. This document assumes that
   the controllers are communicating using YANG-based protocols (e.g.,
   NETCONF or RESTCONF).

   This document describes some use cases where a path computation
   request, via YANG-based protocols (e.g., NETCONF or RESTCONF), can
   be needed.

   This document also proposes a yang model for a stateless RPC which
   complements the stateful solution defined in [TE-TUNNEL].

Table of Contents

   1. Introduction...................................................3
   2. Use Cases......................................................4

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Internet-DraftYang model for requesting Path Computation      June 2017

      2.1. IP-Optical integration....................................5
         2.1.1. Inter-layer path computation.........................6
         2.1.2. Route Diverse IP Services............................8
      2.2. Multi-domain TE Networks..................................8
      2.3. Data center interconnections..............................9
   3. Interactions with TE Topology.................................11
      3.1. TE Topology Aggregation using the "virtual link model"...11
      3.2. TE Topology Abstraction..................................19
      3.3. Complementary use of TE topology and path computation....20
   4. Motivation for a YANG Model...................................22
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