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[Sip] Fwd: session policy, etc.: body addition by proxies vs. other approaches
Hi,
FYI: I posted this note to SIPPING to start discussion of the body addition topic. Lets start the discussion there. If we need to move it we can.
thanks,
-rohan
Begin forwarded message:
From: Rohan Mahy <rohan at cisco.com>
Date: July 23, 2004 10:20:03 AM PDT
To: sipping (E-mail) <sipping at ietf.org>
Cc: Rohan Mahy <rohan at cisco.com>
Subject: session policy, etc.: body addition by proxies vs. other approaches
Hi Folks,
As some of you have already seen, I wrote an individual draft to encourage productive discussion about a technical choice we will need to make soon. I did this at least in part as a chair, to summarize the numerous fragmented discussion on the list and in meetings about this topic. I tried to set aside my personal biases as much as possible. I hope the draft presents a balanced view in any case.
draft-mahy-sipping-body-add-00.txt
The question before the SIP community is the following:
Are we going to build a general purpose mechanism that makes it safe for intermediaries to add bodies in certain circumstances, or are we going to continue to prohibit body modification of any kind and come up with individual solutions to each of the problems where body addition would be be used?
The draft attempts to discuss the implications of both options. Specifically, we need to address requirements from SIPPING for bw/codec policy, logging, cooperative fw/nat traversal, identity, and request-history.
Please read the draft and provide comments to the list. The draft makes certain assumptions and conclusions about the scope of various motivating requirements. If you do not agree with these, please speak up and try to motivate your requirements. After all, its unlikely we can agree on mechanism unless we can agree on requirements and scope.
many thanks,
-rohan
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