Label Switched Path (LSP) Data Path Delay Metrics in Generalized MPLS/ MPLS-TE Networks
draft-ietf-ccamp-dpm-05

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Document Type Active Internet-Draft (ccamp WG)
Last updated 2012-05-21 (latest revision 2012-01-31)
Replaces draft-sun-ccamp-dpm
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Network Working Group                                        W. Sun, Ed.
Internet-Draft                                                      SJTU
Intended status: Standards Track                           G. Zhang, Ed.
Expires: August 4, 2012                                             CATR
                                                        February 1, 2012

 Label Switched Path (LSP) Data Path Delay Metrics in Generalized MPLS/
                            MPLS-TE Networks
                      draft-ietf-ccamp-dpm-05.txt

Abstract

   When setting up a label switched path (LSP) in Generalized MPLS and
   MPLS/TE networks, the completion of the signaling process does not
   necessarily mean that the cross connection along the LSP have been
   programmed accordingly and in a timely manner.  Meanwhile, the
   completion of signaling process may be used by applications as
   indication that data path has become usable.  The existence of this
   delay and the possible failure of cross connection programming, if
   not properly treated, will result in data loss or even application
   failure.  Characterization of this performance can thus help
   designers to improve the application model and to build more robust
   applications.  This document defines a series of performance metrics
   to evaluate the availability of data path in the signaling process.

Status of this Memo

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   This Internet-Draft will expire on August 4, 2012.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Sun & Zhang              Expires August 4, 2012                 [Page 1]
Internet-Draft         LSP Data Path Delay Metrics         February 2012

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4

   2.  Conventions Used in This Document  . . . . . . . . . . . . . .  5

   3.  Overview of Performance Metrics  . . . . . . . . . . . . . . .  6

   4.  Terms used in this document  . . . . . . . . . . . . . . . . .  7

   5.  A singleton Definition for RRFD  . . . . . . . . . . . . . . .  8
     5.1.  Motivation . . . . . . . . . . . . . . . . . . . . . . . .  8
     5.2.  Metric Name  . . . . . . . . . . . . . . . . . . . . . . .  8
     5.3.  Metric Parameters  . . . . . . . . . . . . . . . . . . . .  8
     5.4.  Metric Units . . . . . . . . . . . . . . . . . . . . . . .  8
     5.5.  Definition . . . . . . . . . . . . . . . . . . . . . . . .  8
     5.6.  Discussion . . . . . . . . . . . . . . . . . . . . . . . .  9
     5.7.  Methodologies  . . . . . . . . . . . . . . . . . . . . . . 10

   6.  A singleton Definition for RSRD  . . . . . . . . . . . . . . . 11
     6.1.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . 11
     6.2.  Metric Name  . . . . . . . . . . . . . . . . . . . . . . . 11
     6.3.  Metric Parameters  . . . . . . . . . . . . . . . . . . . . 11
     6.4.  Metric Units . . . . . . . . . . . . . . . . . . . . . . . 11
     6.5.  Definition . . . . . . . . . . . . . . . . . . . . . . . . 12
     6.6.  Discussion . . . . . . . . . . . . . . . . . . . . . . . . 12
     6.7.  Methodologies  . . . . . . . . . . . . . . . . . . . . . . 13

   7.  A singleton Definition for PRFD  . . . . . . . . . . . . . . . 14
     7.1.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . 14
     7.2.  Metric Name  . . . . . . . . . . . . . . . . . . . . . . . 14
     7.3.  Metric Parameters  . . . . . . . . . . . . . . . . . . . . 14
     7.4.  Metric Units . . . . . . . . . . . . . . . . . . . . . . . 14
     7.5.  Definition . . . . . . . . . . . . . . . . . . . . . . . . 14
     7.6.  Discussion . . . . . . . . . . . . . . . . . . . . . . . . 15
     7.7.  Methodologies  . . . . . . . . . . . . . . . . . . . . . . 15
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