IS-IS Extensions to Support Packet Network Slicing using Segment Routing
draft-zch-lsr-isis-network-slicing-03

Document Type Active Internet-Draft (individual)
Last updated 2019-12-03
Stream (None)
Intended RFC status (None)
Formats plain text pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Networking Working Group                                   Yongqing. Zhu
Internet-Draft                                             China Telecom
Intended status: Standards Track                               Ran. Chen
Expires: June 3, 2020                                       Shaofu. Peng
                                                         ZTE Corporation
                                                            Fengwei. Qin
                                                            China Mobile
                                                       December 01, 2019

IS-IS Extensions to Support Packet Network Slicing using Segment Routing
                 draft-zch-lsr-isis-network-slicing-03

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 describes the IS-IS extensions required to
   support Packet Network Slicing using Segment Routing.

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 https://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 June 3, 2020.

Copyright Notice

   Copyright (c) 2019 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Zhu, et al.               Expires June 3, 2020                  [Page 1]
Internet-Draft       IS-IS Ext for Slicing using SR        December 2019

   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
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
   3.  Router Capabilities for TN-slice Identifier . . . . . . . . .   3
   4.  Advertising TN-slice Identifier as a new TE parameter of a
       link  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Advertising TN-slice Identifier for L2 Bundle Member  . . . .   5
   6.  Advertising prefix-SID per TN-slice Identifier  . . . . . . .   5
   7.  Advertising Adjacency-SID per TN-slice Identifier . . . . . .   7
   8.  Advertising Adjacency-SID per TN-slice Identifier in LANs . .   8
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
     9.1.  Router Capabilities for TN-slice Identifier . . . . . . .  10
     9.2.  TN-slice Identifier list sub-TLV  . . . . . . . . . . . .  10
     9.3.  L2 Bundle Member TN-Slice Identifier sub-TLV  . . . . . .  10
     9.4.  Prefix-SID for TN-slice Identifier sub-TLV  . . . . . . .  10
     9.5.  Adjacency-SID for TN-slice Identifier sub-TLV . . . . . .  10
     9.6.  LAN-Adj-SID for TN-slice Identifier sub-TLV . . . . . . .  11
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  11
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     12.1.  Normative references . . . . . . . . . . . . . . . . . .  11
     12.2.  Informative references . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

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 creteria.

   This draft describes the IS-IS extensions required to distribute TN-
Show full document text