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Brief Background SIP networks can fall into congestive collapse when all elements are overloaded Call setup messages get routed all over the network looking for one that is not busy – generates more work Requirements document being developed in sipping (http://www.ietf.org/internet-drafts/draft-rosenberg-sipping-overload-reqs-02.txt) Mechanism document recently produced (http://www.ietf.org/internet-drafts/draft-hilt-sipping-overload-00.txt) |