Hadriel,

I'm reluctant to make any blanket statement about this. I think it is 
very dependent on the context and the method.

I think this would be better in some sort of best practices document, if 
at all.

        Paul

Hadriel Kaplan wrote:
> At one of the recent IETF's, there was a session on SIP interop issues.  One 
> of the issues we've found is different expectations about SIP header length 
> and body size support.  We have found some implementations sending rather 
> large bodies, where "rather large" is greater than 1MB.  Ignoring the reasons 
> some middleboxes have policies to block such large bodies, the reason they 
> have such policies is because lots of devices simply can't handle them.  
> There are other issues with it too, such as head-of-line blocking and 
> inability to send it on over UDP.
> 
> So my question is, is it appropriate for a draft such as 
> draft-ietf-sip-body-handling-01.txt to potentially define a maximum, or at 
> least guidance about it?  It doesn't have to say one cannot send something 
> larger - just say that receivers should only be expected to accept up to X 
> byte large bodies.  I know this is an unpleasant topic, but it's causing 
> interop issues which are causing certain SIP uses to fail in the real world.
> 
> -hadriel
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