BGP-LS Extensions for Transport Slice over IPv6 Dataplane
draft-chen-idr-bgp-ls-transport-slice-srv6-01
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Shaofu Peng
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2020-10-13
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IDR R. chen
Internet-Draft sh. peng
Intended status: Standards Track ZTE Corporation
Expires: April 16, 2021 October 13, 2020
BGP-LS Extensions for Transport Slice over IPv6 Dataplane
draft-chen-idr-bgp-ls-transport-slice-srv6-01
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 over IPv6 dataplane..
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 April 16, 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
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
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
chen & peng Expires April 16, 2021 [Page 1]
Internet-Draft BGP-LS Extensions for TS over IPv6 October 2020
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 over over IPv6
dataplane . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Node Attributes . . . . . . . . . . . . . . . . . . . . . . . 3
4.1. SRv6 Node MSD Types . . . . . . . . . . . . . . . . . . . 3
4.2. Router Capabilities for TN-slice Identifier . . . . . . . 3
5. Link Attributes . . . . . . . . . . . . . . . . . . . . . . . 4
5.1. SRv6 End.X SID per TN-slice TLV . . . . . . . . . . . . . 5
5.2. SRv6 LAN End.X SID per TN-slice TLV . . . . . . . . . . . 6
6. Prefix Attributes . . . . . . . . . . . . . . . . . . . . . . 8
6.1. SRv6 Locator per TN-slice TLV . . . . . . . . . . . . . . 8
7. SRv6 SID NLRI . . . . . . . . . . . . . . . . . . . . . . . . 9
7.1. SRv6 SID per specific TN-slice . . . . . . . . . . . . . 9
7.2. SID Attributes . . . . . . . . . . . . . . . . . . . . . 10
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
8.1. BGP-LS TLVs . . . . . . . . . . . . . . . . . . . . . . . 10
9. Security Considerations . . . . . . . . . . . . . . . . . . . 11
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11
11. Normative References . . . . . . . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13
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.peng-lsr-isis-network-slicing-srv6]describes the ISIS extensions
required to support Packet Network Slicing over IPv6 dataplane.
For SRv6 case, IPv6 address resource is directly used to represent
SID, so that different IPv6 block could be allocated to different TN-
slice. There are two possible ways to advertise TN-slice specfic
IPv6 block:
chen & peng Expires April 16, 2021 [Page 2]
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