{"draft":"draft-ietf-soc-overload-design-08","doc_id":"RFC6357","title":"Design Considerations for Session Initiation Protocol (SIP) Overload Control","authors":["V. Hilt","E. Noel","C. Shen","A. Abdelal"],"format":["ASCII","HTML"],"page_count":"25","pub_status":"INFORMATIONAL","status":"INFORMATIONAL","source":"SIP Overload Control","abstract":"Overload occurs in Session Initiation Protocol (SIP) networks when\r\nSIP servers have insufficient resources to handle all SIP messages\r\nthey receive.  Even though the SIP protocol provides a limited\r\noverload control mechanism through its 503 (Service Unavailable)\r\nresponse code, SIP servers are still vulnerable to overload.  This\r\ndocument discusses models and design considerations for a SIP\r\noverload control mechanism.  This document is not an Internet \r\nStandards Track specification; it is published for informational purposes.","pub_date":"August 2011","keywords":["Session Initiation Protocol","Overload Control","Congestion Collapse"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC6357","errata_url":null}