Performance Measurement Using UDP Path for Segment Routing Networks
draft-gandhi-spring-rfc6374-srpm-udp-01

Document Type Active Internet-Draft (individual)
Last updated 2019-05-15
Replaces draft-gandhi-spring-udp-pm
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SPRING Working Group                                      R. Gandhi, Ed.
Internet-Draft                                               C. Filsfils
Intended Status: Standards Track                     Cisco Systems, Inc.
Expires: November 16, 2019                                      D. Voyer
                                                             Bell Canada
                                                              S. Salsano
                                        Universita di Roma "Tor Vergata"
                                                            P. L. Ventre
                                                                    CNIT
                                                                 M. Chen
                                                                  Huawei
                                                            May 15, 2019

                Performance Measurement Using UDP Path
                     for Segment Routing Networks 
               draft-gandhi-spring-rfc6374-srpm-udp-01

Abstract

   Segment Routing (SR) is applicable to both Multiprotocol Label
   Switching (SR-MPLS) and IPv6 (SRv6) data planes.  This document
   specifies procedures for using UDP path for sending and processing
   synthetic probe query and response messages for Performance
   Measurement (PM).  The procedure uses the RFC 6374 defined mechanisms
   for Performance Delay and Loss Measurement.  The procedure specified
   is applicable to SR-MPLS and SRv6 data planes for both links and
   end-to-end measurement for SR Policies.  In addition, this document
   defines Return Path TLV for two-way performance measurement and Block
   Number TLV for loss measurement.

Status of This Memo

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Gandhi, et al.         Expires November 16, 2019                [Page 1]
Internet-Draft   RFC 6374 UDP Path for Segment Routing      May 15, 2019

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions Used in This Document  . . . . . . . . . . . . . .  4
     2.1.  Requirements Language  . . . . . . . . . . . . . . . . . .  4
     2.2.  Abbreviations  . . . . . . . . . . . . . . . . . . . . . .  4
     2.3.  Reference Topology . . . . . . . . . . . . . . . . . . . .  5
   3.  Probe Messages . . . . . . . . . . . . . . . . . . . . . . . .  7
     3.1.  Probe Query Message  . . . . . . . . . . . . . . . . . . .  7
       3.1.1.  Delay Measurement Probe Query Message  . . . . . . . .  7
       3.1.2.  Loss Measurement Probe Query Message . . . . . . . . .  7
         3.1.2.1.  Block Number TLV . . . . . . . . . . . . . . . . .  8
       3.1.3.  Probe Query for SR Links . . . . . . . . . . . . . . .  9
       3.1.4.  Probe Query for End-to-end Measurement for SR Policy .  9
         3.1.4.1.  Probe Query Message for SR-MPLS Policy . . . . . .  9
         3.1.4.2.  Probe Query Message for SRv6 Policy  . . . . . . . 10
     3.2.  Probe Response Message . . . . . . . . . . . . . . . . . . 10
       3.2.1.  One-way Measurement Mode . . . . . . . . . . . . . . . 11
         3.2.1.1.  SR Links and End-to-end Measurement for SR
                   Policy . . . . . . . . . . . . . . . . . . . . . . 11
         3.2.1.2.  Probe Response Message to Controller . . . . . . . 12
       3.2.2.  Two-way Measurement Mode . . . . . . . . . . . . . . . 12
         3.2.2.1.  SR Links . . . . . . . . . . . . . . . . . . . . . 12
         3.2.2.2.  End-to-end Measurement for SR Policy . . . . . . . 12
         3.2.2.3.  Return Path TLV  . . . . . . . . . . . . . . . . . 12
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