BGP-LS Extensions for Transport Slice
draft-chen-idr-bgp-ls-transport-slice-01

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Last updated 2020-06-08
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L                                                                R. chen
Internet-Draft                                                  Sh. Peng
Intended status: Standards Track                         ZTE Corporation
Expires: December 9, 2020                                   June 7, 2020

                 BGP-LS Extensions for Transport Slice
                draft-chen-idr-bgp-ls-transport-slice-01

Abstract

   [I-D.peng-teas-network-slicing]defines a unified TN-slice identifier,
   AII(administrative instance identifier), to indicate the topology,
   computing, storage resources of the dedicated virtual network for
   both intra-domain and inter-domain network slicing scenarios.  This
   draft defines extensions to BGP-LS protocol in order to advertise the
   information of the transport slice.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on December 9, 2020.

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   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  BGP-LS Extensions for transport slice . . . . . . . . . . . .   3
     3.1.  Node Attributes TLV . . . . . . . . . . . . . . . . . . .   3
     3.2.  Link Attribute TLVs . . . . . . . . . . . . . . . . . . .   4
       3.2.1.  TN-slice Identifier list sub-TLV  . . . . . . . . . .   4
       3.2.2.  L2 Bundle Member TN-Slice Identifier TLV  . . . . . .   5
       3.2.3.  Adjacency-SID for TN-slice Identifier TLV . . . . . .   5
       3.2.4.  LAN-Adj-SID for TN-slice Identifier TLV . . . . . . .   6
     3.3.  Prefix Attribute TLVs . . . . . . . . . . . . . . . . . .   7
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   6.  Normative References  . . . . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   For a packet network, network slicing requires the underlying network
   to support partitioning of the network resources to provide the
   client with dedicated (private) networking, computing, and storage
   resources drawn from a shared pool.
   [I-D.peng-teas-network-slicing]defines a unified TN-slice identifier,
   AII(administrative instance identifier), to indicate the topology,
   computing, storage resources of the dedicated virtual network for
   both intra-domain and inter-domain network slicing scenarios, and how
   to compute SR-BE or SR-TE path according to TN-slice Identifier
   combined with other criteria.

   [I-D.zch-lsr-isis-network-slicing]defines the IS-IS extensions
   required to distribute TN-slice Identifier(that is AII) information
   in an AS.

   In order to satisfy the need for applications that require
   topological visibility across one area or Autonomous System (AS).
   This document specifies extensions to the BGP Link-state address-
   family in order to advertise TN-slice specific.  An external
   component (e.g., a controller) then can collect TN-slice information
   in the "northbound" direction.

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2.  Requirements Language

   The key words "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
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