MPLS Flow Identification Considerations
draft-ietf-mpls-flow-ident-00

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Replaces draft-bryant-mpls-flow-ident
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MPLS                                                           S. Bryant
Internet-Draft                                               Independent
Intended status: Informational                              C. Pignataro
Expires: June 20, 2016                                     Cisco Systems
                                                                 M. Chen
                                                                   Z. Li
                                                                  Huawei
                                                               G. Mirsky
                                                                Ericsson
                                                       December 18, 2015

                MPLS Flow Identification Considerations
                     draft-ietf-mpls-flow-ident-00

Abstract

   This memo discusses the desired capabilities 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 June 20, 2016.

Copyright Notice

   Copyright (c) 2015 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

Bryant, et al.            Expires June 20, 2016                 [Page 1]
Internet-Draft                   MPLS FI                   December 2015

   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  . . . . . . . . . . . . . . . . . . . . . . . .   5
   7.  Network Scope . . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  Backwards Compatibility . . . . . . . . . . . . . . . . . . .   7
   9.  Dataplane . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   10. Control Plane . . . . . . . . . . . . . . . . . . . . . . . .   8
   11. Privacy Considerations  . . . . . . . . . . . . . . . . . . .   8
   12. Security Considerations . . . . . . . . . . . . . . . . . . .   9
   13. IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   14. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   15. References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     15.1.  Normative References . . . . . . . . . . . . . . . . . .   9
     15.2.  Informative References . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   This memo discusses the desired capabilities 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,
   then an error will occur in the packet loss measurement.  In
   addition, this packet performance measurement system needs to be
   extended to deal with different granularities of flow and to address
   a number of the multi-point cases in which two or more ingress Label
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