Operations, Administration, and Maintenance (OAM) in Segment Routing Networks with IPv6 Data plane (SRv6)
draft-ietf-6man-spring-srv6-oam-00

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6man                                                              Z. Ali
Internet-Draft                                               C. Filsfils
Intended status: Standards Track                           Cisco Systems
Expires: February 8, 2020                                  S. Matsushima
                                                                Softbank
                                                                D. Voyer
                                                             Bell Canada
                                                                 M. Chen
                                                                  Huawei
                                                          August 9, 2019

  Operations, Administration, and Maintenance (OAM) in Segment Routing
                  Networks with IPv6 Data plane (SRv6)
                   draft-ietf-6man-spring-srv6-oam-00

Abstract

   This document defines building blocks for Operations, Administration,
   and Maintenance (OAM) in Segment Routing Networks with IPv6 Dataplane
   (SRv6).  The document also describes some SRv6 OAM mechanisms.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

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 February 8, 2020.

Ali, et al.              Expires February 8, 2020                [Page 1]
Internet-Draft                  SRv6 OAM                       July 2019

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.  Conventions Used in This Document . . . . . . . . . . . . . .   3
     2.1.  Abbreviations . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Terminology and Reference Topology  . . . . . . . . . . .   3
   3.  OAM Building Blocks . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  O-flag in Segment Routing Header  . . . . . . . . . . . .   5
       3.1.1.  O-flag Processing . . . . . . . . . . . . . . . . . .   6
     3.2.  OAM Segments  . . . . . . . . . . . . . . . . . . . . . .   6
     3.3.  End.OP: OAM Endpoint with Punt  . . . . . . . . . . . . .   6
     3.4.  End.OTP: OAM Endpoint with Timestamp and Punt . . . . . .   7
     3.5.  SRH TLV . . . . . . . . . . . . . . . . . . . . . . . . .   7
   4.  OAM Mechanisms  . . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Ping  . . . . . . . . . . . . . . . . . . . . . . . . . .   8
       4.1.1.  Classic Ping  . . . . . . . . . . . . . . . . . . . .   8
       4.1.2.  Pinging a SID Function  . . . . . . . . . . . . . . .   9
       4.1.3.  Error Reporting . . . . . . . . . . . . . . . . . . .  12
     4.2.  Traceroute  . . . . . . . . . . . . . . . . . . . . . . .  12
       4.2.1.  Classic Traceroute  . . . . . . . . . . . . . . . . .  13
       4.2.2.  Traceroute to a SID Function  . . . . . . . . . . . .  14
     4.3.  Monitoring of SRv6 Paths  . . . . . . . . . . . . . . . .  18
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
     6.1.  ICMPv6 type Numbers RegistrySEC . . . . . . . . . . . . .  19
     6.2.  SRv6 OAM Endpoint Types . . . . . . . . . . . . . . . . .  19
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  20
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  20
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  21
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  21