A New Internet-Draft is available from the on-line Internet-Drafts
directories.
This draft is a work item of the Session Initiation Protocol Working Group of
the IETF.
Title : Connection Reuse in the Session Initiation
Protocol (SIP)
Author(s) : R. Mahy, et al.
Filename : draft-ietf-sip-connect-reuse-08.txt
Pages : 21
Date : 2007-10-16
This document enables a pair of communicating proxies to reuse a
congestion-controlled connection between themselves for sending
requests in the forward and backwards direction. Because the
connection is essentially aliased for requests going in the backwards
direction, reuse should be predicated upon both the communicating
endpoints authenticating themselves using X.509 certificates through
TLS. For this reason, we only consider connection reuse for TLS over
TCP and TLS over SCTP. A single connection cannot be reused for the
TCP or SCTP transport between two peers, and this document provides
insight into why this is the case. As a remedy, it suggests using
two TCP connections (or two SCTP associations), each opened pro-
actively towards the recipient by the sender. Finally, this document
also provides guidelines on connection reuse and virtual SIP servers
and the interaction of connection reuse and DNS SRV lookups in SIP.
A URL for this Internet-Draft is:
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