Simple TWAMP (STAMP) Extensions for Segment Routing Networks
draft-gandhi-ippm-stamp-srpm-00

Document Type Active Internet-Draft (candidate for ippm WG)
Authors Rakesh Gandhi  , Clarence Filsfils  , Daniel Voyer  , Mach Chen  , Bart Janssens 
Last updated 2020-10-30 (latest revision 2020-10-20)
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IPPM Working Group                                        R. Gandhi, Ed.
Internet-Draft                                               C. Filsfils
Intended status: Standards Track                     Cisco Systems, Inc.
Expires: April 23, 2021                                         D. Voyer
                                                             Bell Canada
                                                                 M. Chen
                                                                  Huawei
                                                             B. Janssens
                                                                    Colt
                                                        October 20, 2020

      Simple TWAMP (STAMP) Extensions for Segment Routing Networks
                    draft-gandhi-ippm-stamp-srpm-00

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 specifies RFC 8762 (Simple Two-Way
   Active Measurement Protocol (STAMP)) extensions for Delay and Loss
   Measurement in Segment Routing networks, for both SR-MPLS and SRv6
   data planes.

Status of This Memo

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   This Internet-Draft will expire on April 23, 2021.

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   Copyright (c) 2020 IETF Trust and the persons identified as the
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   This document is subject to BCP 78 and the IETF Trust's Legal
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Gandhi, et al.           Expires April 23, 2021                 [Page 1]
Internet-Draft    STAMP Extensions for Segment Routing      October 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   3
     2.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     2.2.  Abbreviations . . . . . . . . . . . . . . . . . . . . . .   3
     2.3.  Reference Topology  . . . . . . . . . . . . . . . . . . .   4
   3.  Probe Query Message . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Control Code Field Extension for STAMP Messages . . . . .   4
     3.2.  Loss Measurement Query Message Extensions . . . . . . . .   5
   4.  Probe Response Message  . . . . . . . . . . . . . . . . . . .   8
     4.1.  Loss Measurement Response Message Extensions  . . . . . .   8
   5.  Node Address TLV Extensions . . . . . . . . . . . . . . . . .  10
   6.  Return Path TLV Extensions  . . . . . . . . . . . . . . . . .  10
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Introduction

   Segment Routing (SR) leverages the source routing paradigm and
   greatly simplifies network operations for Software Defined Networks
   (SDNs).  SR is applicable to both Multiprotocol Label Switching (SR-
   MPLS) and IPv6 (SRv6) data planes.  Built-in SR Performance
   Measurement (PM) is one of the essential requirements to provide
   Service Level Agreements (SLAs).

   The Simple Two-way Active Measurement Protocol (STAMP) provides
   capabilities for the measurement of various performance metrics in IP
   networks using probe messages [RFC8762].  It eliminates the need for
   control-channel signaling by using configuration data model to
   provision a test-channel (e.g.  UDP paths).
   [I-D.ietf-ippm-stamp-option-tlv] defines TLV extensions for STAMP
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