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Interoperability between the Virtual Router Redundancy Protocol and PIM (RFC7910)

IP.com Disclosure Number: IPCOM000246771D
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jun-29
Document File: 12 page(s) / 14K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

W. Zhou: AUTHOR

Abstract

The Virtual Router Redundancy Protocol (VRRP) [RFC5798] is a redundancy protocol for establishing a fault-tolerant default router. The protocol establishes a framework between network devices in order to achieve default device failover if the primary devices become inaccessible.

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Independent Submission                                           W. Zhou Request for Comments: 7910                                 Cisco Systems Category: Informational                                        June 2016 ISSN: 2070-1721

 Interoperability between the Virtual Router Redundancy Protocol and PIM

Abstract

   This document introduces VRRP-aware PIM, a redundancy mechanism for    the Protocol Independent Multicast (PIM) to interoperate with the    Virtual Router Redundancy Protocol (VRRP).  It allows PIM to track    VRRP state and to preserve multicast traffic upon failover in a    redundant network with virtual routing groups enabled.  The mechanism    described in this document is based on Cisco IOS software    implementation.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   This is a contribution to the RFC Series, independently of any other    RFC stream.  The RFC Editor has chosen to publish this document at    its discretion and makes no statement about its value for    implementation or deployment.  Documents approved for publication by    the RFC Editor are not a candidate for any level of Internet    Standard; see 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/rfc7910.

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.

 Zhou                          Informational                     [Page 1]
 RFC 7910                VRRP PIM Interoperability              June 2016

 Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2    2.  Tracking and Failover . . . . . . . . . . . . . . . . . . . .   3    3.  PIM Assert Metric Auto-Adjustment . . . . . . . . . . . . . .   4    4.  DF Election for BiDir Group . . . . . . . . . . . . . . . . .   4    5.  Tracking Multiple VRRP Groups on an Interface . . . . . . . .   5    6.  Support of HSRP . . . . . . . . . . . . . . . . . . . . . . .   5    7.  Security Considerations . . . . . . . . . . . . . . . . . . .   5    8.  Informative References  . . . . . . . . . . . . . . . . . . .   6    Acknowledgments . . . . . . . . . ....