Multicast only Fast Re-Route
draft-ietf-rtgwg-mofrr-01

The information below is for an old version of the document
Document Type Active Internet-Draft (rtgwg WG)
Authors Apoorva Karan  , Clarence Filsfils  , Dino Farinacci  , IJsbrand Wijnands  , Bruno Decraene  , Uwe Joorde  , Wim Henderickx 
Last updated 2013-04-18
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Network Working Group                                           A. Karan
Internet-Draft                                               C. Filsfils
Intended status: Informational                              D. Farinacci
Expires: October 20, 2013                              IJ. Wijnands, Ed.
                                                     Cisco Systems, Inc.
                                                             B. Decraene
                                                          France Telecom
                                                               U. Joorde
                                                        Deutsche Telekom
                                                           W. Henderickx
                                                          Alcatel-Lucent
                                                          April 18, 2013

                      Multicast only Fast Re-Route
                       draft-ietf-rtgwg-mofrr-01

Abstract

   As IPTV deployments grow in number and size, service providers are
   looking for solutions that minimize the service disruption due to
   faults in the IP network carrying the packets for these services.
   This draft describes a mechanism for minimizing packet loss in a
   network when node or link failures occur.  Multicast only Fast Re-
   Route (MoFRR) works by making simple enhancements to multicast
   routing protocols such as PIM and mLDP.

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on October 20, 2013.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Karan, et al.           Expires October 20, 2013                [Page 1]
Internet-Draft                    MoFRR                       April 2013

   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  . . . . . . . . . . . .  3
     1.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Basic Overview . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Upstream Multicast Hop Selection . . . . . . . . . . . . . . .  4
     3.1.  PIM  . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     3.2.  mLDP . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
   4.  Topologies for MoFRR . . . . . . . . . . . . . . . . . . . . .  5
     4.1.  Dual-Plane Topology  . . . . . . . . . . . . . . . . . . .  5
   5.  Detecting Failures . . . . . . . . . . . . . . . . . . . . . .  8
   6.  ECMP-mode MoFRR  . . . . . . . . . . . . . . . . . . . . . . .  9
   7.  Non-ECMP-mode MoFRR  . . . . . . . . . . . . . . . . . . . . .  9
     7.1.  Variation  . . . . . . . . . . . . . . . . . . . . . . . . 11
   8.  Keep It Simple Principle . . . . . . . . . . . . . . . . . . . 11
   9.  Capacity Planning for MoFRR  . . . . . . . . . . . . . . . . . 11
   10. Other Applications . . . . . . . . . . . . . . . . . . . . . . 12
   11. Security Considerations  . . . . . . . . . . . . . . . . . . . 12
   12. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 13
   13. Contributing authors . . . . . . . . . . . . . . . . . . . . . 13
   14. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     14.1. Normative References . . . . . . . . . . . . . . . . . . . 13
     14.2. Informative References . . . . . . . . . . . . . . . . . . 13
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 13

Karan, et al.           Expires October 20, 2013                [Page 2]
Internet-Draft                    MoFRR                       April 2013

1.  Introduction

   Multiple techniques have been developed and deployed to improve
   service guarantees, both for multicast video traffic and Video on
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