Illustrations for SRv6 Network Programming
draft-filsfils-spring-srv6-net-pgm-illustration-01

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Last updated 2019-08-15
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SPRING                                                       C. Filsfils
Internet-Draft                                         P. Camarillo, Ed.
Intended status: Informational                       Cisco Systems, Inc.
Expires: February 15, 2020                                         Z. Li
                                                     Huawei Technologies
                                                           S. Matsushima
                                                                SoftBank
                                                             B. Decraene
                                                                  Orange
                                                            D. Steinberg
                                           Lapishills Consulting Limited
                                                               D. Lebrun
                                                                  Google
                                                               R. Raszuk
                                                            Bloomberg LP
                                                                J. Leddy
                                                  Individual Contributor
                                                         August 14, 2019

               Illustrations for SRv6 Network Programming
           draft-filsfils-spring-srv6-net-pgm-illustration-01

Abstract

   This document illustrates how SRv6 Network Programming
   [I-D.ietf-spring-srv6-network-programming] can be used to create
   interoperable and protected overlays with underlay optimization and
   service programming.

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 February 15, 2020               [Page 1]
Internet-Draft Illustrations for SRv6 Network Programming    August 2019

   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 February 15, 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
   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.  Illustration  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Simplified SID allocation . . . . . . . . . . . . . . . .   3
     2.2.  Reference diagram . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Basic security  . . . . . . . . . . . . . . . . . . . . .   4
     2.4.  SR-L3VPN  . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.5.  SR-Ethernet-VPWS  . . . . . . . . . . . . . . . . . . . .   6
     2.6.  SR-EVPN-FXC . . . . . . . . . . . . . . . . . . . . . . .   7
     2.7.  SR-EVPN . . . . . . . . . . . . . . . . . . . . . . . . .   7
       2.7.1.  EVPN Bridging . . . . . . . . . . . . . . . . . . . .   7
       2.7.2.  EVPN Multi-homing with ESI filtering  . . . . . . . .   9
       2.7.3.  EVPN Layer-3  . . . . . . . . . . . . . . . . . . . .  10
       2.7.4.  EVPN Integrated Routing Bridging (IRB)  . . . . . . .  11
     2.8.  SR TE for Underlay SLA  . . . . . . . . . . . . . . . . .  11
       2.8.1.  SR policy from the Ingress PE . . . . . . . . . . . .  11
       2.8.2.  SR policy at a midpoint . . . . . . . . . . . . . . .  12
     2.9.  End-to-End policy with intermediate BSID  . . . . . . . .  13
     2.10. TI-LFA  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     2.11. SR TE for Service programming . . . . . . . . . . . . . .  15
   3.  Benefits  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
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