IS-IS Extensions to Support Transport Network Slices using Segment Routing
draft-zch-lsr-isis-network-slicing-06

Document Type Active Internet-Draft (individual)
Authors Yongqing Zhu  , Ran Chen  , Shaofu Peng  , Fengwei Qin 
Last updated 2020-09-04
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Networking Working Group                                          Y. Zhu
Internet-Draft                                             China Telecom
Intended status: Standards Track                                 R. Chen
Expires: March 9, 2021                                           S. Peng
                                                         ZTE Corporation
                                                                  F. Qin
                                                            China Mobile
                                                      September 05, 2020

   IS-IS Extensions to Support Transport Network Slices using Segment
                                Routing
                 draft-zch-lsr-isis-network-slicing-06

Abstract

   [I-D.nsdt-teas-ns-framework] provides a framework of transport
   slices.

   This draft describes the IS-IS extensions required to support
   transport slices 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
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   This Internet-Draft will expire on March 9, 2021.

Copyright Notice

   Copyright (c) 2020 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
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   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Zhu, et al.               Expires March 9, 2021                 [Page 1]
Internet-Draft       IS-IS Ext for Slicing using SR       September 2020

   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   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
     4.1.  Advertising Dedicated Bandwidth Resouce of a Link for
           Each VN . . . . . . . . . . . . . . . . . . . . . . . . .   5
       4.1.1.  Unidirectional Residual Bandwidth per TN-slice
               Identifier Sub-TLV  . . . . . . . . . . . . . . . . .   6
       4.1.2.  Unidirectional Available Bandwidth per TN-slice
               Identifier Sub-TLV  . . . . . . . . . . . . . . . . .   7
       4.1.3.  Unidirectional Utilized Bandwidth per TN-slice
               Identifier Sub-TLV  . . . . . . . . . . . . . . . . .   8
   5.  Advertising TN-slice Identifier for L2 Bundle Member  . . . .   8
     5.1.  Advertising Bandwidth Information of member Link  . . . .   9
   6.  Advertising prefix-SID per TN-slice Identifier  . . . . . . .   9
   7.  Advertising Adjacency-SID per TN-slice Identifier . . . . . .  11
   8.  Advertising Adjacency-SID per TN-slice Identifier in LANs . .  12
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
     9.1.  Router Capabilities for TN-slice Identifier . . . . . . .  13
     9.2.  TN-slice Identifier list sub-TLV  . . . . . . . . . . . .  13
     9.3.  Unidirectional Residual Bandwidth per TN-slice Identifier
           Sub-TLV . . . . . . . . . . . . . . . . . . . . . . . . .  13
     9.4.  Unidirectional Available Bandwidth per TN-slice
           Identifier Sub-TLV  . . . . . . . . . . . . . . . . . . .  14
     9.5.  Unidirectional Utilized Bandwidth per TN-slice Identifier
           Sub-TLV . . . . . . . . . . . . . . . . . . . . . . . . .  14
     9.6.  L2 Bundle Member TN-slice Identifier sub-TLV  . . . . . .  14
     9.7.  Prefix-SID for TN-slice Identifier sub-TLV  . . . . . . .  14
     9.8.  Adjacency-SID for TN-slice Identifier sub-TLV . . . . . .  14
     9.9.  LAN-Adj-SID for TN-slice Identifier sub-TLV . . . . . . .  14
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  15
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     12.1.  Normative references . . . . . . . . . . . . . . . . . .  15
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