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The Session Description Protocol (SDP) is used to describe the parameters
of media streams used in multimedia sessions. When a session requires multiple ports, SDP assumes
that these ports have consecutive numbers. However, when the session crosses a network address translation
device that also uses port mapping, the ordering of ports can be destroyed by the
translation. To handle this, we propose an extension attribute to SDP.
Christian Huitema <firstname.lastname@example.org>
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)