RFC6374 Synonymous Flow Labels
draft-ietf-mpls-rfc6374-sfl-07

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MPLS Working Group                                        S. Bryant (Ed)
Internet-Draft                               Futurewei Technologies Inc.
Intended status: Standards Track                              G. Swallow
Expires: December 10, 2020                     Southend Technical Center
                                                                 M. Chen
                                                                  Huawei
                                                             G. Fioccola
                                                     Huawei Technologies
                                                               G. Mirsky
                                                               ZTE Corp.
                                                           June 08, 2020

                     RFC6374 Synonymous Flow Labels
                     draft-ietf-mpls-rfc6374-sfl-07

Abstract

   This document describes a method of making RFC6374 performance
   measurements on flows carried over an MPLS Label Switched path.  This
   allows loss and delay measurements to be made on multi-point to point
   LSPs and allows the measurement of flows within an MPLS construct
   using RFC6374.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on December 10, 2020.

Copyright Notice

   Copyright (c) 2020 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

Bryant (Ed), et al.     Expires December 10, 2020               [Page 1]
Internet-Draft                 RFC6374-SFL                     June 2020

   (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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  RFC6374 Packet Loss Measurement with SFL  . . . . . . . . . .   4
   4.  RFC6374 Single Packet Delay Measurement . . . . . . . . . . .   4
   5.  Data Service Packet Delay Measurement . . . . . . . . . . . .   4
   6.  Some Simplifying Rules  . . . . . . . . . . . . . . . . . . .   6
   7.  Multiple Packet Delay Characteristics . . . . . . . . . . . .   6
     7.1.  Method 1: Time Buckets  . . . . . . . . . . . . . . . . .   7
     7.2.  Method 2 Classic Standard Deviation . . . . . . . . . . .   9
       7.2.1.  RFC6374 Multi-Packet Delay Measurement Message Format  10
     7.3.  Per Packet Delay Measurement  . . . . . . . . . . . . . .  11
     7.4.  Average Delay . . . . . . . . . . . . . . . . . . . . . .  11
   8.  Sampled Measurement . . . . . . . . . . . . . . . . . . . . .  13
   9.  Carrying RFC6374 Packets over an LSP using an SFL . . . . . .  13
     9.1.  RFC6374 SFL TLV . . . . . . . . . . . . . . . . . . . . .  15
   10. Applicability to Pro-active and On-demand Measurement . . . .  16
   11. RFC6374 Combined Loss-Delay Measurement . . . . . . . . . . .  16
   12. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  16
   13. Security Considerations . . . . . . . . . . . . . . . . . . .  17
   14. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
     14.1.  Allocation of PW Associated Channel Type . . . . . . . .  17
     14.2.  MPLS Loss/Delay TLV Object . . . . . . . . . . . . . . .  17
   15. Contributing Authors  . . . . . . . . . . . . . . . . . . . .  18
   16. References  . . . . . . . . . . . . . . . . . . . . . . . . .  18
     16.1.  Normative References . . . . . . . . . . . . . . . . . .  18
     16.2.  Informative References . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

   [RFC6374] was originally designed for use as an OAM protocol for use
   with MPLS Transport Profile (MPLS-TP) [RFC5921] LSPs.  MPLS-TP only
   supports point-to-point and point-to-multi-point LSPs.  This document