Failure Detection and Locator Pair Exploration Protocol for IPv6 Multihoming
RFC 5534
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RFC - Proposed Standard
(June 2009; No errata)
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2015-10-14
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IETF
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plain text
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IESG state |
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RFC 5534 (Proposed Standard)
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Unknown
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Responsible AD |
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Mark Townsley
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Network Working Group J. Arkko
Request for Comments: 5534 Ericsson
Category: Standards Track I. van Beijnum
IMDEA Networks
June 2009
Failure Detection and Locator Pair
Exploration Protocol for IPv6 Multihoming
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (c) 2009 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 in effect on the date of
publication of this document (http://trustee.ietf.org/license-info).
Please review these documents carefully, as they describe your rights
and restrictions with respect to this document.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Abstract
This document specifies how the level 3 multihoming Shim6 protocol
(Shim6) detects failures between two communicating nodes. It also
specifies an exploration protocol for switching to another pair of
interfaces and/or addresses between the same nodes if a failure
occurs and an operational pair can be found.
Arkko & Van Beijnum Standards Track [Page 1]
RFC 5534 Failure Detection/Exploration Protocol June 2009
Table of Contents
1. Introduction ....................................................3
2. Requirements Language ...........................................4
3. Definitions .....................................................4
3.1. Available Addresses ........................................4
3.2. Locally Operational Addresses ..............................5
3.3. Operational Address Pairs ..................................5
3.4. Primary Address Pair .......................................7
3.5. Current Address Pair .......................................7
4. Protocol Overview ...............................................8
4.1. Failure Detection ..........................................8
4.2. Full Reachability Exploration .............................10
4.3. Exploration Order .........................................11
5. Protocol Definition ............................................13
5.1. Keepalive Message .........................................13
5.2. Probe Message .............................................14
5.3. Keepalive Timeout Option Format ...........................18
6. Behavior .......................................................19
6.1. Incoming Payload Packet ...................................20
6.2. Outgoing Payload Packet ...................................21
6.3. Keepalive Timeout .........................................21
6.4. Send Timeout ..............................................22
6.5. Retransmission ............................................22
6.6. Reception of the Keepalive Message ........................22
6.7. Reception of the Probe Message State=Exploring ............23
6.8. Reception of the Probe Message State=InboundOk ............23
6.9. Reception of the Probe Message State=Operational ..........23
6.10. Graphical Representation of the State Machine ............24
7. Protocol Constants and Variables ...............................24
8. Security Considerations ........................................25
9. Operational Considerations .....................................27
10. References ....................................................28
10.1. Normative References .....................................28
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