Re: [Sip] draft-ietf-sip-sips-03.txt: Closing of Opened issues

[Cullen Jennings <[e-mail]>]

Francois pointed out this draft was wrong to me a long time ago -  
Nagendra and I agree with him. We just had not got around to fixing it.

Cullen <with my individual hat on>


On Apr 26, 2007, at 2:49 PM, Francois Audet wrote:

> Yes, that draft is wrong and needs to be fixed.
>
> The correct behavior is 1/
>
>> -----Original Message-----
>> From: Vijay K. Gurbani [mailto:[e-mail]]
>> Sent: Thursday, April 26, 2007 14:48
>> To: Audet, Francois (SC100:3055)
>> Cc: [e-mail]
>> Subject: Re: [Sip] draft-ietf-sip-sips-03.txt: Closing of
>> Opened issues
>>
>> Francois Audet wrote:
>>> VIA already supports SCTP, TLS-SCTP. And the draft provides the
>>> references to RFC 4168 that defines it.
>>
>> We've had this conversation before.
>>
>> That is all well and fine for Vias (responses), but what
>> about requests triggered by a R-URI?
>>
>>> DTLS is defined in
>>> http://tools.ietf.org/wg/sip/draft-jennings-sip-dtls-03.txt.
>>
>> dtls-03 says that a SIP URI to be sent over DTLS should look
>> like the following:
>>
>>     sip:[e-mail];transport=dtls-udp
>>
>> Two questions:
>>    1/ should it not be "sips" scheme here?
>>    2/ If we are endorsing "transport=dtls-udp" in a SIP URI, then
>>       saying that you should not put "transport=tls" in a SIP URI
>>       seems silly. (Note that I personally do not like how
>>       implementations have continued to use "transport=tls"
>>       despite rfc3261 deprecating this.  But questions will arise
>>       in the future that why are we allowing "transport=dtls-udp"
>>       and not "transport=tls"?)
>>
>> Thanks,
>>
>> - vijay
>> --
>> Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent
>> 2701 Lucent Lane, Rm. 9F-546, Lisle, Illinois 60532 (USA)
>> Email: vkg@{alcatel-lucent.com,bell-labs.com,acm.org}
>> WWW:   http://www.alcatel-lucent.com/bell-labs
>>
>
>
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