Segment Routing Mapped To IPv6 (SRm6)
draft-bonica-spring-sr-mapped-six-02
SPRING Working Group R. Bonica
Internet-Draft S. Hegde
Intended status: Standards Track Juniper Networks
Expires: April 7, 2021 Y. Kamite
NTT Communications Corporation
A. Alston
D. Henriques
Liquid Telecom
L. Jalil
Verizon
J. Halpern
Ericsson
J. Linkova
Google
G. Chen
Baidu
October 4, 2020
Segment Routing Mapped To IPv6 (SRm6)
draft-bonica-spring-sr-mapped-six-02
Abstract
This document describes Segment Routing Mapped to IPv6 (SRm6). SRm6
is a Segment Routing (SR) solution that supports a wide variety of
use-cases while complying with IPv6 specifications. SRm6 is
optimized for ASIC-based routers that operate at high data rates.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 7, 2021.
Bonica, et al. Expires April 7, 2021 [Page 1]
Internet-Draft SRm6 October 2020
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Table of Contents
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Paths, Segments And Instructions . . . . . . . . . . . . . . 4
3. Topological Instructions . . . . . . . . . . . . . . . . . . 5
3.1. Adjacency Instructions . . . . . . . . . . . . . . . . . 5
3.2. Node Instructions . . . . . . . . . . . . . . . . . . . . 5
3.3. Binding Instructions . . . . . . . . . . . . . . . . . . 6
4. Service Instructions . . . . . . . . . . . . . . . . . . . . 6
4.1. PSSI . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2. PPSI . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Segment Identifiers (SID) . . . . . . . . . . . . . . . . . . 7
5.1. 16-Bit SIDs Versus 32-Bit SIDs . . . . . . . . . . . . . 8
5.2. Assigning SIDs . . . . . . . . . . . . . . . . . . . . . 9
6. Forwarding Plane . . . . . . . . . . . . . . . . . . . . . . 9
7. Control Plane . . . . . . . . . . . . . . . . . . . . . . . . 12
8. Differences Between SRm6 and SRv6 . . . . . . . . . . . . . . 12
8.1. Instruction Encoding . . . . . . . . . . . . . . . . . . 12
8.2. IPv6 Address Semantics . . . . . . . . . . . . . . . . . 12
8.3. OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.4. Routing Extension Header Size . . . . . . . . . . . . . . 12
8.5. Authentication . . . . . . . . . . . . . . . . . . . . . 14
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
10. Security Considerations . . . . . . . . . . . . . . . . . . . 14
11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 14
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
12.1. Normative References . . . . . . . . . . . . . . . . . . 14
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