MPLS Flow Identification Considerations
draft-ietf-mpls-flow-ident-06

Document Type Active Internet-Draft (mpls WG)
Last updated 2018-01-11 (latest revision 2017-12-14)
Replaces draft-bryant-mpls-flow-ident
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MPLS Working Group                                             S. Bryant
Internet-Draft                                                    Huawei
Intended status: Informational                              C. Pignataro
Expires: June 17, 2018                                     Cisco Systems
                                                                 M. Chen
                                                                   Z. Li
                                                                  Huawei
                                                               G. Mirsky
                                                               ZTE Corp.
                                                       December 14, 2017

                MPLS Flow Identification Considerations
                     draft-ietf-mpls-flow-ident-06

Abstract

   This document discusses the aspects that need to be be considered
   when developing a solution for MPLS flow identification.  The key
   application that needs this is in-band performance monitoring of MPLS
   flows when MPLS is used to encapsulate 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
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   This Internet-Draft will expire on June 17, 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 June 17, 2018                 [Page 1]
Internet-Draft                   MPLS FI                   December 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  . . . . . . . . . . . . . . . . . . . . . .  10
   15. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     15.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     15.2.  Informative References . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   This document discusses the aspects that need to be considered when
   developing a solution for MPLS flow identification.The key
   application that needs this is in-band performance monitoring of MPLS
   flows when MPL is used for the encapsulation of user data packets.

   There is a need to identify flows in MPLS networks for various
   applications such as determining 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 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, then an error will occur in the packet
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