Performance Measurement in Segment Routing Networks with MPLS Data Plane
draft-gandhi-spring-sr-mpls-pm-02

Document Type Active Internet-Draft (individual)
Last updated 2018-07-15
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
SPRING Working Group                                      R. Gandhi, Ed.
Internet-Draft                                               C. Filsfils
Intended Status: Informational                                   S. Soni
Expires: January 16, 2019                            Cisco Systems, Inc.
                                                                D. Voyer
                                                             Bell Canada
                                                              S. Salsano
                                        Universita di Roma "Tor Vergata"
                                                            P. L. Ventre
                                                                    CNIT
                                                                 M. Chen
                                                                  Huawei
                                                           July 15, 2018

                      Performance Measurement in 
              Segment Routing Networks with MPLS Data Plane
                   draft-gandhi-spring-sr-mpls-pm-02 

Abstract

   RFC 6374 specifies protocol mechanisms to enable the efficient and
   accurate measurement of packet loss, one-way and two-way delay, as
   well as related metrics such as delay variation in MPLS networks
   using probe messages.  This document reviews how these mechanisms can
   be used for Delay and Loss Performance Measurements (PM) in Segment
   Routing (SR) networks with MPLS data plane (SR-MPLS), for both SR
   links and end-to-end SR Policies.  The performance measurements for
   SR links are used to compute extended Traffic Engineering (TE)
   metrics for delay and loss and are advertised in the network using
   routing protocols.

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 http://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."

 

Gandhi, et al.          Expires January 16, 2019                [Page 1]
Internet-Draft      SR-MPLS Performance Measurement        July 15, 2018

Copyright Notice

   Copyright (c) 2018 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
   (http://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.  Probe Query and Response Packets . . . . . . . . . . . . . . .  5
     3.1.  Probe Packet Header for SR-MPLS Policies . . . . . . . . .  5
     3.2.  Probe Packet Header for SR-MPLS Links  . . . . . . . . . .  5
     3.3.  Probe Response Message for SR-MPLS Links and Policies  . .  6
       3.3.1.  One-way Measurement Probe Response Message . . . . . .  6
       3.3.2.  Two-way Measurement Probe Response Message . . . . . .  6
   4.  Performance Delay Measurement  . . . . . . . . . . . . . . . .  6
     4.1.  Delay Measurement Message Format . . . . . . . . . . . . .  6
     4.2.  Timestamp  . . . . . . . . . . . . . . . . . . . . . . . .  8
   5.  Performance Loss Measurement . . . . . . . . . . . . . . . . .  8
     5.1.  Loss Measurement Message Format  . . . . . . . . . . . . .  8
   6.  SR Link Extended TE Metrics Advertisements . . . . . . . . . . 10
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 10
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 10
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 11
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 11
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 11
   Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . . . 13
Show full document text