A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Site Multihoming by IPv6 Intermediation Working Group of the IETF.
Title : Shim6 Reachability Detection
Author(s) : I. van Beijnum
Filename : draft-ietf-shim6-reach-detect-01.txt
Pages : 6
Date : 2005-10-26
The shim6 working group is developing a mechanism that allows
multihoming by using multiple addresses. When communication between
the initially chosen addresses for a transport session is no longer
possible, a "shim" layer makes it possible to switch to a different
set of addresses without breaking current transport protocol
assumptions. This draft discusses the issues of detecting failures
in a currently used address pair between two hosts and picking a
new address pair to be used when a failure occurs. The input for
these processes are ordered lists of local and remote addresses
that are reasonably likely to work. (I.e., not include addresses
that are known to be unreachable for local reasons.) These lists
must be available at both ends of the communication, although the
ordering may differ. Building these address lists from locally
available information and synchronizing them with the remote end
are outside the scope of this document.
This text is for the most part based on discussions on the multi6
list, several multi6 design team lists and the shim6 list, with
notable contributions from Erik Nordmark, Marcelo Bagnulo and Jari
Arkko. Suggestions and additions are more than welcome.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-shim6-reach-detect-01.txt
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