Name: draft-ietf-sip-connect-reuse-03
Title: Connection Reuse in the Session Initiation Protocol (SIP)
State: Active
Authors: Rohan Mahy
Group: Session Initiation Protocol (sip)
Date: 2004-10-25
When SIP entities use a connection oriented protocol to send a request,
they typically originate their connections from an ephemeral port. The SIP
protocol includes mechanisms which insure that responses to a request, and
new requests sent in the original direction reuse an existing connection.
However, new requests sent in the opposite direction are unlikely to reuse
the existing connection. This frequently causes a pair of SIP entities to
use one connection for requests sent in each direction, and can result in
potential scaling and performance problems. This document proposes
requirements and a mechanism which address this deficiency.
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