< draft-addogra-rtgwg-vrrp-rfc5798bis-08.txt   draft-addogra-rtgwg-vrrp-rfc5798bis-09.txt >
Network Working Group A. Lindem Network Working Group A. Lindem
Internet-Draft A. Dogra Internet-Draft A. Dogra
Obsoletes: 5798 (if approved) Cisco Systems Obsoletes: 5798 (if approved) Cisco Systems
Intended status: Standards Track S. Nadas Intended status: Standards Track 10 May 2022
Expires: 24 October 2022 Computer Science, Boston University Expires: 11 November 2022
22 April 2022
Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6 Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6
draft-addogra-rtgwg-vrrp-rfc5798bis-08 draft-addogra-rtgwg-vrrp-rfc5798bis-09
Abstract Abstract
This document defines the Virtual Router Redundancy Protocol (VRRP) This document defines the Virtual Router Redundancy Protocol (VRRP)
for IPv4 and IPv6. It is version three (3) of the protocol, and it for IPv4 and IPv6. It is version three (3) of the protocol, and it
is based on VRRP (version 2) for IPv4 that is defined in RFC 3768 and is based on VRRP (version 2) for IPv4 that is defined in RFC 3768 and
in "Virtual Router Redundancy Protocol for IPv6". VRRP specifies an in "Virtual Router Redundancy Protocol for IPv6". VRRP specifies an
election protocol that dynamically assigns responsibility for a election protocol that dynamically assigns responsibility for a
virtual router to one of the VRRP routers on a LAN. The VRRP router virtual router to one of the VRRP routers on a LAN. The VRRP router
controlling the IPv4 or IPv6 address(es) associated with a virtual controlling the IPv4 or IPv6 address(es) associated with a virtual
skipping to change at page 2, line 10 skipping to change at page 2, line 10
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on 24 October 2022. This Internet-Draft will expire on 11 November 2022.
Copyright Notice Copyright Notice
Copyright (c) 2022 IETF Trust and the persons identified as the Copyright (c) 2022 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/ Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document. license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights Please review these documents carefully, as they describe your rights
skipping to change at page 4, line 4 skipping to change at page 4, line 4
13.4. VRRPv3 and VRRPv2 Interoperation . . . . . . . . . . . . 33 13.4. VRRPv3 and VRRPv2 Interoperation . . . . . . . . . . . . 33
13.4.1. Assumptions . . . . . . . . . . . . . . . . . . . . 33 13.4.1. Assumptions . . . . . . . . . . . . . . . . . . . . 33
13.4.2. VRRPv3 Support of VRRPv2 . . . . . . . . . . . . . . 33 13.4.2. VRRPv3 Support of VRRPv2 . . . . . . . . . . . . . . 33
13.4.3. VRRPv3 Support of VRRPv2 Considerations . . . . . . 33 13.4.3. VRRPv3 Support of VRRPv2 Considerations . . . . . . 33
13.4.3.1. Slow, High-Priority Active Routers . . . . . . . 33 13.4.3.1. Slow, High-Priority Active Routers . . . . . . . 33
13.4.3.2. Overwhelming VRRPv2 Backups . . . . . . . . . . 34 13.4.3.2. Overwhelming VRRPv2 Backups . . . . . . . . . . 34
14. Security Considerations . . . . . . . . . . . . . . . . . . . 34 14. Security Considerations . . . . . . . . . . . . . . . . . . . 34
15. Contributors and Acknowledgments . . . . . . . . . . . . . . 35 15. Contributors and Acknowledgments . . . . . . . . . . . . . . 35
16. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 36 16. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 36
17. Normative References . . . . . . . . . . . . . . . . . . . . 36 17. Normative References . . . . . . . . . . . . . . . . . . . . 36
18. Informative References . . . . . . . . . . . . . . . . . . . 36 18. Informative References . . . . . . . . . . . . . . . . . . . 37
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 37 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 37
1. Introduction 1. Introduction
This document defines the Virtual Router Redundancy Protocol (VRRP) This document defines the Virtual Router Redundancy Protocol (VRRP)
for IPv4 and IPv6. It is version three (3) of the protocol. It is for IPv4 and IPv6. It is version three (3) of the protocol. It is
based on VRRP (version 2) for IPv4 that is defined in [RFC3768] and based on VRRP (version 2) for IPv4 that is defined in [RFC3768] and
in [VRRP-IPv6]. VRRP specifies an election protocol that dynamically in [VRRP-IPv6]. VRRP specifies an election protocol that dynamically
assigns responsibility for a virtual router to one of the VRRP assigns responsibility for a virtual router to one of the VRRP
routers on a LAN. The VRRP router controlling the IPv4 or IPv6 routers on a LAN. The VRRP router controlling the IPv4 or IPv6
skipping to change at page 36, line 9 skipping to change at page 36, line 9
their helpful suggestions. their helpful suggestions.
The IPv4 text in this specification is based on [RFC3768]. The The IPv4 text in this specification is based on [RFC3768]. The
authors of that specification would like to thank Glen Zorn, Michael authors of that specification would like to thank Glen Zorn, Michael
Lane, Clark Bremer, Hal Peterson, Tony Li, Barbara Denny, Joel Lane, Clark Bremer, Hal Peterson, Tony Li, Barbara Denny, Joel
Halpern, Steve Bellovin, Thomas Narten, Rob Montgomery, Rob Coltun, Halpern, Steve Bellovin, Thomas Narten, Rob Montgomery, Rob Coltun,
Radia Perlman, Russ Housley, Harald Alvestrand, Steve Bellovin, Ned Radia Perlman, Russ Housley, Harald Alvestrand, Steve Bellovin, Ned
Freed, Ted Hardie, Russ Housley, Bert Wijnen, Bill Fenner, and Alex Freed, Ted Hardie, Russ Housley, Bert Wijnen, Bill Fenner, and Alex
Zinin for their comments and suggestions. Zinin for their comments and suggestions.
Thanks to Steve Nadas for his work merging/editting [RFC3768] and
[VRRP-IPv6] into the draft that eventually became RFC 5798 [RFC5798].
Thanks to Stewart Bryant, Sasha Vainshtein, and Pascal Thubert for Thanks to Stewart Bryant, Sasha Vainshtein, and Pascal Thubert for
comments on the current document (RFC 5798 BIS). Thanks to Gyan comments on the current document (RFC 5798 BIS). Thanks to Gyan
Mishra, Paul Congdon, and Jon Rosen for discussions related to the Mishra, Paul Congdon, and Jon Rosen for discussions related to the
removal of legacy technology appendicies. removal of legacy technology appendicies.
16. IANA Considerations 16. IANA Considerations
IANA has assigned the IPv4 multicast address 224.0.0.18 for VRRP. IANA has assigned the IPv4 multicast address 224.0.0.18 for VRRP.
IANA has assigned an IPv6 link-local scope multicast address for VRRP IANA has assigned an IPv6 link-local scope multicast address for VRRP
skipping to change at page 37, line 44 skipping to change at page 38, line 4
[RFC9131] Linkova, J., "Gratuitous Neighbor Discovery: Creating [RFC9131] Linkova, J., "Gratuitous Neighbor Discovery: Creating
Neighbor Cache Entries on First-Hop Routers", October Neighbor Cache Entries on First-Hop Routers", October
2021. 2021.
[VRRP-IPv6] [VRRP-IPv6]
Hinden, R. and J. Cruz, "Virtual Router Redundancy Hinden, R. and J. Cruz, "Virtual Router Redundancy
Protocol for IPv6", Work in Progress, March 2007. Protocol for IPv6", Work in Progress, March 2007.
Authors' Addresses Authors' Addresses
Acee Lindem Acee Lindem
Cisco Systems Cisco Systems
301 Midenhall Way 301 Midenhall Way
Cary, NC 27513 Cary, NC 27513
United States of America United States of America
Email: acee@cisco.com Email: acee@cisco.com
Aditya Dogra Aditya Dogra
Cisco Systems Cisco Systems
Sarjapur Outer Ring Road Sarjapur Outer Ring Road
Bangalore 560103 Bangalore 560103
Karnataka Karnataka
India India
Email: addogra@cisco.com Email: addogra@cisco.com
Stephen Nadas
Computer Science, Boston University
111 Cummington Mall
Boston, MA 02215
United States of America
Email: nadas@bu.edu
 End of changes. 8 change blocks. 
7 lines changed or deleted 9 lines changed or added

This html diff was produced by rfcdiff 1.48. The latest version is available from http://tools.ietf.org/tools/rfcdiff/