Session Initiation Protocol Overload Control
RFC 7339, “Session Initiation Protocol Overload Control”, is a Proposed Standard document published in September 2014 by V. Gurbani, V. Hilt, H. Schulzrinne. The canonical text is published by the RFC Editor.
Abstract
Overload occurs in Session Initiation Protocol (SIP) networks when SIP servers have insufficient resources to handle all the SIP messages they receive. Even though the SIP protocol provides a limited overload control mechanism through its 503 (Service Unavailable) response code, SIP servers are still vulnerable to overload. This document defines the behavior of SIP servers involved in overload control and also specifies a loss-based overload scheme for SIP.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7339 is hosted at rfc-editor.org. Available in TXT,HTML.
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