Network Programming extension: SRv6 uSID instruction
draft-filsfils-spring-net-pgm-extension-srv6-usid-03

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Last updated 2020-02-13
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SPRING                                                  C. Filsfils, Ed.
Internet-Draft                                         P. Camarillo, Ed.
Intended status: Standards Track                     Cisco Systems, Inc.
Expires: August 16, 2020                                          D. Cai
                                                                 Alibaba
                                                                D. Voyer
                                                             Bell Canada
                                                               I. Meilik
                                                                Broadcom
                                                                K. Patel
                                                            Arrcus, Inc.
                                                           W. Henderickx
                                                                   Nokia
                                                         P. Jonnalagadda
                                                       Barefoot Networks
                                                               D. Melman
                                                                 Marvell
                                                       February 13, 2020

          Network Programming extension: SRv6 uSID instruction
          draft-filsfils-spring-net-pgm-extension-srv6-usid-03

Abstract

   The SRv6 "micro segment" (SRv6 uSID or uSID for short) instruction is
   defined and illustrated.

   It is a straightforward extension to the SRv6 Network Programming
   model and its SRH encapsulation.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

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/.

Filsfils, et al.         Expires August 16, 2020                [Page 1]
Internet-DraftNetwork Programming extension: SRv6 uSID instFebruary 2020

   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on August 16, 2020.

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
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Notation for human readability  . . . . . . . . . . . . .   4
   3.  SRv6 behaviors associated with a uSID . . . . . . . . . . . .   4
     3.1.  uN  . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Routing . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Illustration  . . . . . . . . . . . . . . . . . . . . . . . .   5
     5.1.  Reference diagram . . . . . . . . . . . . . . . . . . . .   5
     5.2.  SRv6 overlay with underlay optimization . . . . . . . . .   5
   6.  Benefits  . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   7.  Running code  . . . . . . . . . . . . . . . . . . . . . . . .   8
   8.  Security  . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   9.  Work in progress  . . . . . . . . . . . . . . . . . . . . . .   8
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   11. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   9
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     12.2.  Informative References . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

Filsfils, et al.         Expires August 16, 2020                [Page 2]
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