Design Considerations for Session Initiation Protocol (SIP) Overload Control

@article{Hilt2011DesignCF,
  title={Design Considerations for Session Initiation Protocol (SIP) Overload Control},
  author={Volker Hilt and Eric No{\"e}l and Charles Shen and Ahmed Abdelal},
  journal={RFC},
  year={2011},
  volume={6357},
  pages={1-25}
}
Overload occurs in Session Initiation Protocol (SIP) networks when SIP servers have insufficient resources to handle all 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 discusses models and design considerations for a SIP overload control mechanism. Status of This Memo This document is not an Internet Standards Track specification… CONTINUE READING

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