Session Initiation Protocol Extension to Assure Congestion Safety
draft-ietf-sip-congestsafe-02
Document | Type |
Expired Internet-Draft
(sip WG)
Expired & archived
|
|
---|---|---|---|
Authors | Ben Campbell , Dean Willis | ||
Last updated | 2015-10-14 (Latest revision 2003-10-14) | ||
RFC stream | Internet Engineering Task Force (IETF) | ||
Intended RFC status | Proposed Standard | ||
Formats | |||
Additional resources | Mailing list discussion | ||
Stream | WG state | WG Document | |
Document shepherd | (None) | ||
IESG | IESG state | Expired (IESG: Dead) | |
Action Holders |
(None)
|
||
Consensus boilerplate | Unknown | ||
Telechat date | (None) | ||
Responsible AD | Allison J. Mankin | ||
Send notices to | <rohan@cisco.com> |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
The Session Initiation Protocol allows the use of UDP for transport of SIP messages. The use of UDP inherently risks network congestion problems, as UDP itself does not define congestion prevention, avoidance, detection, or correction mechanisms. This problem is aggravated by large SIP messages which fragment at the UDP level. Transport protocols in SIP are also negotiated on a per-hop basis, at the SIP level, so SIP proxies may convert from TCP to UDP and so forth. This document defines by which a SIP User Agent may require that its requests are not sent over UDP or other transports having congestion-related characteristics similar to those of UDP.
Authors
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)