Multi-Chassis Passive Optical Network (MC-PON) Protection in MPLS
RFC 8024

Document Type RFC - Proposed Standard (November 2016; No errata)
Last updated 2016-11-30
Replaces draft-jiang-pwe3-mc-pon
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Stream WG state Submitted to IESG for Publication
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Internet Engineering Task Force (IETF)                     Y. Jiang, Ed.
Request for Comments: 8024                                        Y. Luo
Category: Standards Track                                         Huawei
ISSN: 2070-1721                                         E. Mallette, Ed.
                                                  Charter Communications
                                                                 Y. Shen
                                                        Juniper Networks
                                                                W. Cheng
                                                            China Mobile
                                                           November 2016

   Multi-Chassis Passive Optical Network (MC-PON) Protection in MPLS

Abstract

   Multiprotocol Label Switching (MPLS) is being extended to the edge of
   operator networks including the network access nodes.  Separately,
   network access nodes such as Passive Optical Network (PON) Optical
   Line Terminations (OLTs) have evolved to support first-mile access
   protection, where one or more physical OLTs provide first-mile
   diversity to the customer edge.  Multihoming support is needed on the
   MPLS-enabled PON OLT to provide resiliency for provided services.
   This document describes the Multi-Chassis PON (MC-PON) protection
   architecture in MPLS and also specifies the Inter-Chassis
   Communication Protocol (ICCP) extension to support it.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc8024.

Jiang, et al.                Standards Track                    [Page 1]
RFC 8024                    MC-PON Protection              November 2016

Copyright Notice

   Copyright (c) 2016 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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Conventions Used in This Document . . . . . . . . . . . .   5
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  ICCP Protocol Extensions  . . . . . . . . . . . . . . . . . .   6
     2.1.  Multi-Chassis PON Application TLVs  . . . . . . . . . . .   6
       2.1.1.  PON Connect TLV . . . . . . . . . . . . . . . . . . .   6
       2.1.2.  PON Disconnect TLV  . . . . . . . . . . . . . . . . .   7
       2.1.3.  PON Configuration TLV . . . . . . . . . . . . . . . .   8
       2.1.4.  PON State TLV . . . . . . . . . . . . . . . . . . . .   9
   3.  Considerations on PON ONU Database Synchronization  . . . . .   9
   4.  Multi-Chassis PON Application Procedures  . . . . . . . . . .  10
     4.1.  Protection Procedure upon PON Link Failures . . . . . . .  11
     4.2.  Protection Procedure upon PW Failures . . . . . . . . . .  12
     4.3.  Protection Procedure upon the Working OLT Failure . . . .  12
     4.4.  Protection Procedure for a Dual-Homing PE . . . . . . . .  12
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .  15
   Contributors  . . . . . . . . . . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

Jiang, et al.                Standards Track                    [Page 2]
RFC 8024                    MC-PON Protection              November 2016

1.  Introduction
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