Fast and Robust Signaling Overload Control
ICNP '01 Proceedings of the Ninth International Conference on Network Protocols
GOCAP -- one standardised overload control for next generation networks
BT Technology Journal
Overload Protection in a SIP Signaling Network
ICISP '06 Proceedings of the International Conference on Internet Surveillance and Protection
Evaluating SIP server performance
Proceedings of the 2007 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Initial simulation results that analyze SIP based VoIP networks under overload
ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
SIP overload control: a backpressure-based approach
Proceedings of the ACM SIGCOMM 2010 conference
SIP CLF: a common log format (CLF) for the session initiation protocol (SIP)
SLAML'10 Proceedings of the 2010 workshop on Managing systems via log analysis and machine learning techniques
On TCP-based SIP server overload control
Principles, Systems and Applications of IP Telecommunications
Overload control in SIP networks using no explicit feedback: A window based approach
Computer Communications
A distributed end-to-end overload control mechanism for networks of SIP servers
Computer Networks: The International Journal of Computer and Telecommunications Networking
Design, implementation, and performance of a load balancer for SIP server clusters
IEEE/ACM Transactions on Networking (TON)
The impact of TLS on SIP server performance: measurement and modeling
IEEE/ACM Transactions on Networking (TON)
Comparison of loss-based overload control mechanisms in signaling system with SIP protocol
Proceedings of the 24th International Teletraffic Congress
An Architectural and Evaluative Review of Implicit and Explicit SIP Overload Handling
International Journal of Measurement Technologies and Instrumentation Engineering
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A Session Initiation Protocol (SIP) server may be overloaded by emergency-induced call volume, "American Idol" style flash crowd effects or denial of service attacks. The SIP server overload problem is interesting especially because the costs of serving or rejecting a SIP session can be similar. For this reason, the built-in SIP overload control mechanism based on generating rejection messages cannot prevent the server from entering congestion collapse under heavy load. The SIP overload problem calls for a pushback control solution in which the potentially overloaded receiving server may notify its upstream sending servers to have them send only the amount of load within the receiving server's processing capacity. The pushback framework can be achieved by either a rate-based feedback or a window-based feedback. The centerpiece of the feedback mechanism is the algorithm used to generate load regulation information. We propose three new window-based feedback algorithms and evaluate them together with two existing rate-based feedback algorithms. We compare the different algorithms in terms of the number of tuning parameters and performance under both steady and variable load. Furthermore, we identify two categories of fairness requirements for SIP overload control, namely, user-centric and provider-centric fairness. With the introduction of a new double-feed SIP overload control architecture, we show how the algorithms can meet those fairness criteria.