MPLS LSP PW status refresh reduction for Static Pseudowires
draft-ietf-pals-status-reduction-05

Document Type Active Internet-Draft (pals WG)
Last updated 2017-05-11
Replaces draft-ietf-pwe3-status-reduction
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Stewart Bryant
Shepherd write-up Show (last changed 2017-04-09)
IESG IESG state IESG Evaluation::AD Followup
Consensus Boilerplate Yes
Telechat date
Has a DISCUSS. Has enough positions to pass once DISCUSS positions are resolved.
Responsible AD Deborah Brungard
Send notices to "Stewart Bryant" <stewart.bryant@gmail.com>
IANA IANA review state Version Changed - Review Needed
IANA action state None
Internet Engineering Task Force                             Luca Martini
Internet Draft                                               Monoski LLC
Intended status: Standards Track                          George Swallow
Expires: November 2017                                             Cisco
                                                        Elisa Bellagamba
                                                                Ericsson

                                                                May 2017

      MPLS LSP PW status refresh reduction for Static Pseudowires

                draft-ietf-pals-status-reduction-05.txt

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt.

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on November 10, 2010

Abstract

   This document describes a method for generating an aggregated
   pseudowire status message transmitted for a statically configured
   pseudowire on a Multi-Protocol Label Switching (MPLS) Label Switched
   Path (LSP) to indicate the status of one or more pseudowires carried
   on the LSP.

   The method for transmitting the pseudowire (PW) status information is
   not new, however this protocol extension allows a Service Provider

Martini, et al.                                                 [Page 1]
Internet Draft  draft-ietf-pals-status-reduction-05.txt         May 2017

   (SP) to reliably monitor the individual PW status while not
   overwhelming the network with multiple periodic status messages. This
   is achieved by sending a single cumulative summary status
   verification message for all the PWs grouped in the same LSP.

Table of Contents

    1        Introduction  .........................................   3
    1.1      Requirements Language  ................................   3
    1.2      Terminology  ..........................................   3
    1.3      Notational Conventions in Backus-Naur Form  ...........   4
    2        PW status refresh reduction protocol  .................   4
    2.1      Protocol states  ......................................   4
    2.1.1    INACTIVE  .............................................   5
    2.1.2    STARTUP  ..............................................   5
    2.1.3    ACTIVE  ...............................................   5
    2.2      Timer value change transition procedure  ..............   5
    3        PW status refresh reduction procedure  ................   6
    4        PW status refresh reduction Message Encoding  .........   6
    5        PW status refresh reduction Control Messages  .........  10
    5.1      Notification message  .................................  10
    5.2      PW Configuration Message  .............................  11
    5.2.1    MPLS-TP Tunnel ID  ....................................  12
    5.2.2    PW ID configured List  ................................  13
    5.2.3    PW ID unconfigured List  ..............................  13
    6        PW provisioning verification procedure  ...............  14
    6.0.4    PW ID List advertising and processing  ................  15
    7        Security Considerations  ..............................  15
    8        IANA Considerations  ..................................  15
    8.1      PW Status Refresh Reduction Message Types  ............  15
    8.2      PW Configuration Message Sub-TLVs  ....................  16
    8.3      PW Status Refresh Reduction Notification Codes  .......  16
    8.4      PW status refresh reduction Message Flags  ............  17
    8.5      G-ACH Registry Allocation  ............................  17
    8.6      Guidance for Designated Experts  ......................  17
    9        References  ...........................................  18
    9.1      Normative References  .................................  18
    9.2      Informative References  ...............................  18
   10        Authors' Addresses  ...................................  18

Martini, et al.                                                 [Page 2]
Internet Draft  draft-ietf-pals-status-reduction-05.txt         May 2017
Show full document text