A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Problem Statement for SIP-signalled Peer-to-Peer Communication across Middleboxes
Author(s) : J. Quittek, et al.
Filename : draft-quittek-p2p-sip-middlebox-00.txt
Pages : 15
Date : 2006-3-1
Middleboxes, particularly firewalls and network address translators,
are essential components of today's Internet infrastructure. They
are designed to support client-server applications well, but very
often they are obstacles for peer-to-peer communication. This memo
discusses middlebox traversal issues of SIP-based peer-to-peer
communication. Required communication steps are analyzed concerning
their potential constraints caused by middleboxes. The requirements
derived from this analysis are compared with the capabilites of
currently available middlebox traversal methods and SIP signaling
standards. The comparison identifies open issues that need to be
considered when designing standards for a SIP-based peer-to-peer
communication infrastructure.
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