MPLS Flow Identification Considerations
draft-ietf-mpls-flow-ident-05

Document Type Active Internet-Draft (mpls WG)
Last updated 2017-08-11 (latest revision 2017-07-27)
Replaces draft-bryant-mpls-flow-ident
Stream IETF
Intended RFC status Informational
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MPLS Working Group                                             S. Bryant
Internet-Draft                                                    Huawei
Intended status: Informational                              C. Pignataro
Expires: January 28, 2018                                  Cisco Systems
                                                                 M. Chen
                                                                   Z. Li
                                                                  Huawei
                                                               G. Mirsky
                                                               ZTE Corp.
                                                           July 27, 2017

                MPLS Flow Identification Considerations
                     draft-ietf-mpls-flow-ident-05

Abstract

   This memo discusses the aspects that must be considered when
   developing a solution for MPLS flow identification.  The key
   application that needs this is in-band performance monitoring of user
   data packets.

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
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   This Internet-Draft will expire on January 28, 2018.

Copyright Notice

   Copyright (c) 2017 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

Bryant, et al.          Expires January 28, 2018                [Page 1]
Internet-Draft                   MPLS FI                       July 2017

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  Loss Measurement Considerations . . . . . . . . . . . . . . .   3
   4.  Delay Measurement Considerations  . . . . . . . . . . . . . .   4
   5.  Units of identification . . . . . . . . . . . . . . . . . . .   4
   6.  Types of LSP  . . . . . . . . . . . . . . . . . . . . . . . .   6
   7.  Network Scope . . . . . . . . . . . . . . . . . . . . . . . .   7
   8.  Backwards Compatibility . . . . . . . . . . . . . . . . . . .   7
   9.  Dataplane . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   10. Control Plane . . . . . . . . . . . . . . . . . . . . . . . .   9
   11. Privacy Considerations  . . . . . . . . . . . . . . . . . . .   9
   12. Security Considerations . . . . . . . . . . . . . . . . . . .   9
   13. IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   14. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   15. References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     15.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     15.2.  Informative References . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   This memo discusses the aspects that must be considered when
   developing a solution for MPLS flow identification.  The key
   application that needs this is in-band performance monitoring of user
   data packets.

   There is a need to identify flows in MPLS networks for applications
   such as packet loss and packet delay measurement.  A method of loss
   and delay measurement in MPLS networks was defined in [RFC6374].
   When used to measure packet loss [RFC6374] depends on the use of the
   injected Operations, Administration, and Maintenance (OAM) packets to
   designate the beginning and the end of the packet group over which
   packet loss is being measured.  Where the misordering of packets from
   one group relative to the following group, or misordering of one of
   the packets being counted relative to the [RFC6374] packet occurs,
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