A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Locating Session Initiation Protocol (SIP) Servers in a Dual-Stack IP Network
Author(s) : Olle E. Johansson
Gonzalo Salgueiro
Filename : draft-johansson-sip-dual-stack-01.txt
Pages : 6
Date : 2013-07-30
Abstract:
RFC 3263 defines how a Session Initiation Protocol (SIP)
implementation, given a SIP Uniform Resource Identifier (URI), should
locate the next hop SIP server using Domain Name System (DNS)
procedures. The specification repeatedly states that the
implementation should look up IPv4 or IPv6 addresses. This is not a
suitable solution and one that can cause severely degraded user
experience dual-stack clients, as detailed in the Happy Eyeballs
specification. This document specifies amended procedures for dual-
stack SIP implementations so that they look up both IPv4 and IPv6
addresses. This way, the SIP implementation can find the preferred
network path and protocol with an improved chance of successfully
reaching the desired service. This document also clarifies DNS SRV
usage for single-stack clients.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-johansson-sip-dual-stack
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-johansson-sip-dual-stack-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-johansson-sip-dual-stack-01
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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