A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Requirements for domain marking for the purpose of Upstream Traffic Characterization
Author(s) : D. Schwartz, D. Besprosvan
Filename : draft-schwartz-sipping-domain-marking-requirements-00.txt
Pages : 6
Date : 2007-11-12
SIP as defined in RFC 3261 [1] defines a Via header as a construct to
be used for upstream response routing and for downstream assistance
in loop detection. There is an increasing need on downstream
administrative domains (ADs) to gain visibility into all the ADs in
its upstream path. The information needed is not IP based as
internal architectures at upstream ADs is of no consequence to
downstream ADs. Logical domain marking, however, is desperately
needed for any traffic analysis to occur at the receiving side.
Gathering AD information from Via headers is non obvious and in many
instances nearly impossible. This documents identifies the
requirements for addressing this issue.
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