Re: [Sip] Draft: draft-holmberg-sip-keep-00.txt

[Jiri Kuthan <jiri at iptel.org>]

Hadriel Kaplan wrote:
> 
>> -----Original Message-----
>> From: sip-bounces at ietf.org [mailto:sip-bounces at ietf.org] On Behalf Of Juha
>> Heinanen
>>
>> Christer Holmberg writes:
>>
>>  > Last, you say that if the UA does not get keep=yes back the UA will
>>  > not send CRLFs. Not receiving keep=yes simply indicates that the edge
>>  > proxy does not support the Outbound keep-alive techniques.
>>
>> this is not true, because the proxy may still be able to send back,
>> e.g., single CRLF, but does not understand your "keep" parameter.  in
>> fact, that is the case with openser proxy once the CRLF patch has been
>> committed.
> 
> Openser will send back a CRLF when it gets a CRLF?  Interesting, but it's proprietary.  There is nothing in SIP to say "send back a CRLF when you get a CRLF".  This draft is proposing a standardized way to do that, for both transport types.


Then we may very well consider making "respond to CRLF with CRLF" a 
proposed standardized way too.
I mean it is simple and works. Which I prefer over negotiation protocols.

-jiri


> 
> 
>>  > What the UA does in that case is a UA implementation issue.
>>
>> that is not what hadriel said.
> 
> See my other email - it was what I meant - not getting the keep=yes means the other end doesn't support this draft.  Caveat emptor at that point.
> 
> -hadriel
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