> -----Original Message-----
> From: Ranjit Avasarala [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, October 31, 2001 4:21 PM
> To: 'Shan Lu'; 'IETF SIPPING Mailing List'; 'SIP Implementors Mailing
> List'
> Subject: [Sipping] RE: [Sip-implementors] 4xx by stateless proxy
>
>
> Hi
> Since there is no destination address, the stateless proxy
> should discard
> the Invite.
No, that is not correct.
Stateless proxy is just a ROLE. If an element needs to generate a response,
it becomes a UAS. We have tried to make that consistently clear in bis-04.
That said, it is possible for a UAS to statelessly generate a response. Each
request retransmission would trigger the response to be recomputed and
re-sent. This only works if the element never generates a 1xx, but rather
responds with the final response right away. This is used, for example, to
prevent unauthenticated requests from creating state in servers.
-Jonathan R.
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Shan Lu
> Sent: Wednesday, October 31, 2001 2:22 PM
> To: IETF SIPPING Mailing List; SIP Implementors Mailing List
> Subject: [Sip-implementors] 4xx by stateless proxy
>
>
> Hi all,
>
> Have the following question:
>
> A stateless proxy receives an INVITE and doesn't have any destination
> for it. What is it supposed to do? Generate 4xx upstream?
> Then who takes
> care of the retransmission stuff? Note that this is a
> stateless proxy --
> no call state, no transaction state. Or does it silently discard the
> INVITE? Or does it dump the INVITE onto a UAS and let the UAS do the
> dirty job? Doesn't sound elegant, though.
>
> Appreciate any response.
>
> Regards,
>
> Shan Lu
> sentitO Networks
>
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---
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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