Network Programming extension: SRv6 uSID instruction
draft-filsfils-spring-net-pgm-extension-srv6-usid-04

Document Type Active Internet-Draft (individual)
Last updated 2020-02-25
Stream (None)
Intended RFC status (None)
Formats plain text pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
SPRING                                                  C. Filsfils, Ed.
Internet-Draft                                         P. Camarillo, Ed.
Intended status: Standards Track                     Cisco Systems, Inc.
Expires: August 28, 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 25, 2020

          Network Programming extension: SRv6 uSID instruction
          draft-filsfils-spring-net-pgm-extension-srv6-usid-04

Abstract

   The SRv6 "micro segment" (SRv6 uSID or uSID for short) instruction is
   a straightforward extension of the SRv6 Network Programming model:

   o  The SRv6 Control Plane is leveraged without any change

   o  The SRH dataplane encapsulation is leveraged without any change

   o  Any SID in the SID list can carry micro segments

   This enables:

   o  ultra-scale (e.g. multi-domain 5G deployments)

   o  minimum MTU overhead

   o  installed-base reuse

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

Filsfils, et al.         Expires August 28, 2020                [Page 1]
Internet-DraftNetwork Programming extension: SRv6 uSID instFebruary 2020

   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/.

   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 August 28, 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
   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
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Notation for human readability  . . . . . . . . . . . . .   4
   3.  SRv6 behaviors associated with a uSID . . . . . . . . . . . .   5
     3.1.  uN  . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Routing . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  Benefits  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   6.  Running code  . . . . . . . . . . . . . . . . . . . . . . . .   7
   7.  Security  . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   8.  Work in progress  . . . . . . . . . . . . . . . . . . . . . .   8
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8

Filsfils, et al.         Expires August 28, 2020                [Page 2]
Internet-DraftNetwork Programming extension: SRv6 uSID instFebruary 2020

   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   8
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  12
Show full document text