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This draft is a work item of the Session Initiation Proposal Investigation Working Group of the IETF.
Title : Requirements for Management of Overload in the Session Initiation Protocol
Author(s) : J. Rosenberg
Filename : draft-ietf-sipping-overload-reqs-00.txt
Pages : 21
Date : 2006-11-28
Overload occurs in Session Initiation Protocol (SIP) networks when
proxies and user agents have insuffient resources to complete the
processing of a request. SIP provides limited support for overload
handling through its 503 response code, which tells an upstream
element that it is overloaded. However, numerous problems have been
identified with this mechanism. This draft summarizes the problems
with the existing 503 mechanism, and provides some requirements for a
solution.
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