Residence Time Measurement in MPLS network
draft-ietf-mpls-residence-time-14

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Document Type Active Internet-Draft (mpls WG)
Last updated 2017-03-02 (latest revision 2017-02-22)
Replaces draft-mirsky-mpls-residence-time
Stream IETF
Intended RFC status Proposed Standard
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MPLS Working Group                                             G. Mirsky
Internet-Draft                                                 ZTE Corp.
Intended status: Standards Track                              S. Ruffini
Expires: August 26, 2017                                         E. Gray
                                                                Ericsson
                                                                J. Drake
                                                        Juniper Networks
                                                               S. Bryant
                                                                  Huawei
                                                           A. Vainshtein
                                                             ECI Telecom
                                                       February 22, 2017

               Residence Time Measurement in MPLS network
                   draft-ietf-mpls-residence-time-14

Abstract

   This document specifies a new Generic Associated Channel for
   Residence Time Measurement and describes how it can be used by time
   synchronization protocols within a MPLS domain.

   Residence time is the variable part of propagation delay of timing
   and synchronization messages and knowing what this delay is for each
   message allows for a more accurate determination of the delay to be
   taken into account in applying the value included in a Precision Time
   Protocol event message.

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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   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 26, 2017.

Mirsky, et al.           Expires August 26, 2017                [Page 1]
Internet-Draft         Residence Time Measurement          February 2017

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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Conventions used in this document . . . . . . . . . . . .   3
       1.1.1.  Terminology . . . . . . . . . . . . . . . . . . . . .   3
       1.1.2.  Requirements Language . . . . . . . . . . . . . . . .   4
   2.  Residence Time Measurement  . . . . . . . . . . . . . . . . .   4
     2.1.  One-step Clock and Two-step Clock Modes . . . . . . . . .   5
       2.1.1.  RTM with Two-step Upstream PTP Clock  . . . . . . . .   6
       2.1.2.  RTM with One-step Upstream PTP Clock  . . . . . . . .   7
   3.  G-ACh for Residence Time Measurement  . . . . . . . . . . . .   7
     3.1.  PTP Packet Sub-TLV  . . . . . . . . . . . . . . . . . . .   9
   4.  Control Plane Theory of Operation . . . . . . . . . . . . . .  10
     4.1.  RTM Capability  . . . . . . . . . . . . . . . . . . . . .  10
     4.2.  RTM Capability Sub-TLV  . . . . . . . . . . . . . . . . .  11
     4.3.  RTM Capability Advertisement in OSPFv2  . . . . . . . . .  11
     4.4.  RTM Capability Advertisement in OSPFv3  . . . . . . . . .  12
     4.5.  RTM Capability Advertisement in IS-IS . . . . . . . . . .  12
     4.6.  RTM Capability Advertisement in BGP-LS  . . . . . . . . .  13
     4.7.  RSVP-TE Control Plane Operation to Support RTM  . . . . .  13
     4.8.  RTM_SET TLV . . . . . . . . . . . . . . . . . . . . . . .  15
       4.8.1.  RTM_SET Sub-TLVs  . . . . . . . . . . . . . . . . . .  16
   5.  Data Plane Theory of Operation  . . . . . . . . . . . . . . .  19
   6.  Applicable PTP Scenarios  . . . . . . . . . . . . . . . . . .  20
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
     7.1.  New RTM G-ACh . . . . . . . . . . . . . . . . . . . . . .  20
     7.2.  New RTM TLV Registry  . . . . . . . . . . . . . . . . . .  20
     7.3.  New RTM Sub-TLV Registry  . . . . . . . . . . . . . . . .  21
     7.4.  RTM Capability sub-TLV in OSPFv2  . . . . . . . . . . . .  21
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