RFC6374 Synonymous Flow Labels
draft-bryant-mpls-rfc6374-sfl-03

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Document Type Active Internet-Draft (mpls WG)
Last updated 2017-04-07 (latest revision 2016-10-28)
Replaced by draft-ietf-mpls-rfc6374-sfl
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MPLS Working Group                                             S. Bryant
Internet-Draft                                                   M. Chen
Intended status: Informational                                     Z. Li
Expires: April 30, 2017                                           Huawei
                                                              G. Swallow
                                                            S. Sivabalan
                                                           Cisco Systems
                                                               G. Mirsky
                                                                Ericsson
                                                             G. Fioccola
                                                          Telecom Italia
                                                        October 27, 2016

                     RFC6374 Synonymous Flow Labels
                    draft-bryant-mpls-rfc6374-sfl-03

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.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on April 30, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Bryant, et al.           Expires April 30, 2017                 [Page 1]
Internet-Draft                 RFC6374-SFL                  October 2016

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   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
     7.3.  Per Packet Delay Measurement  . . . . . . . . . . . . . .   9
       7.3.1.  RFC6374 Multi-Packet Delay Measurement Message Format  10
     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. RFC6374 Combined Loss-Delay Measurement . . . . . . . . . . .  16
   11. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  16
   12. Security Considerations . . . . . . . . . . . . . . . . . . .  17
   13. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
     13.1.  Allocation of PW Associated Channel Type . . . . . . . .  17
     13.2.  MPLS Loss/Delay TLV Object . . . . . . . . . . . . . . .  17
   14. References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     14.1.  Normative References . . . . . . . . . . . . . . . . . .  17
     14.2.  Informative References . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19

1.  Introduction

   [I-D.ietf-mpls-flow-ident] describes the requirement for introducing
   flow identities when using RFC6374 [RFC6374] packet Loss Measurements
   (LM).  In summary RFC6374 uses the loss-measurement (LM) packet as
   the packet accounting demarcation point.  Unfortunately this gives
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