Performance Measurement Using Simple TWAMP (STAMP) for Segment Routing Networks
draft-gandhi-spring-stamp-srpm-05

Document Type Active Internet-Draft (spring WG)
Authors Rakesh Gandhi  , Clarence Filsfils  , Daniel Voyer  , Mach Chen  , Bart Janssens 
Last updated 2021-02-10
Replaces draft-gandhi-spring-twamp-srpm, draft-gandhi-spring-rfc6374-srpm-udp
Stream IETF
Intended RFC status (None)
Formats plain text xml pdf htmlized (tools) htmlized bibtex
Stream WG state Waiting for WG Chair Go-Ahead
Document shepherd No shepherd assigned
IESG IESG state I-D Exists
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)
SPRING Working Group                                      R. Gandhi, Ed.
Internet-Draft                                               C. Filsfils
Intended status: Informational                       Cisco Systems, Inc.
Expires: August 14, 2021                                        D. Voyer
                                                             Bell Canada
                                                                 M. Chen
                                                                  Huawei
                                                             B. Janssens
                                                                    Colt
                                                       February 10, 2021

 Performance Measurement Using Simple TWAMP (STAMP) for Segment Routing
                                Networks
                   draft-gandhi-spring-stamp-srpm-05

Abstract

   Segment Routing (SR) leverages the source routing paradigm.  SR is
   applicable to both Multiprotocol Label Switching (SR-MPLS) and IPv6
   (SRv6) data planes.  This document describes procedures for
   Performance Measurement in SR networks using the mechanisms defined
   in RFC 8762 (Simple Two-Way Active Measurement Protocol (STAMP)) and
   its optional extensions defined in RFC 8972 and draft-gandhi-ippm-
   stamp-srpm.  The procedure described is applicable to SR-MPLS and
   SRv6 data planes and is used for both links and end-to-end SR paths
   including SR Policies.

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 14, 2021.

Gandhi, et al.           Expires August 14, 2021                [Page 1]
Internet-Draft       Using STAMP for Segment Routing       February 2021

Copyright Notice

   Copyright (c) 2021 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.  Reference Topology  . . . . . . . . . . . . . . . . . . .   4
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Example STAMP Reference Model . . . . . . . . . . . . . .   5
   4.  Delay Measurement for Links and SR Paths  . . . . . . . . . .   7
     4.1.  Session-Sender Test Packet  . . . . . . . . . . . . . . .   7
       4.1.1.  Session-Sender Test Packet for Links  . . . . . . . .   7
       4.1.2.  Session-Sender Test Packet for SR Paths . . . . . . .   7
     4.2.  Session-Reflector Test Packet . . . . . . . . . . . . . .   9
       4.2.1.  One-way Delay Measurement Mode  . . . . . . . . . . .  10
       4.2.2.  Two-way Delay Measurement Mode  . . . . . . . . . . .  10
       4.2.3.  Round-trip Delay Measurement Mode . . . . . . . . . .  12
     4.3.  Delay Measurement for P2MP SR Policies  . . . . . . . . .  13
     4.4.  Additional STAMP Test Packet Processing Rules . . . . . .  14
       4.4.1.  TTL . . . . . . . . . . . . . . . . . . . . . . . . .  14
       4.4.2.  IPv6 Hop Limit  . . . . . . . . . . . . . . . . . . .  14
       4.4.3.  Router Alert Option . . . . . . . . . . . . . . . . .  15
   5.  Packet Loss Measurement for Links and SR Paths  . . . . . . .  15
   6.  Direct Measurement for Links and SR Paths . . . . . . . . . .  15
   7.  Session Status for Links and SR Paths . . . . . . . . . . . .  15
   8.  ECMP Support for SR Policies  . . . . . . . . . . . . . . . .  15
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  17
Show full document text