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