RE: [Sip] Vocabulary and problem statement for Request-URI, retargeting, and SIP routing (long, but read it!)
"Sanjay Sinha (sanjsinh)" <sanjsinh@cisco.com> Thu, 17 January 2008 23:40 UTC
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Subject: RE: [Sip] Vocabulary and problem statement for Request-URI, retargeting, and SIP routing (long, but read it!)
Date: Thu, 17 Jan 2008 18:40:35 -0500
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Thread-Topic: [Sip] Vocabulary and problem statement for Request-URI, retargeting, and SIP routing (long, but read it!)
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From: "Sanjay Sinha (sanjsinh)" <sanjsinh@cisco.com>
To: Dean Willis <dean.willis@softarmor.com>, Hadriel Kaplan <HKaplan@acmepacket.com>
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Inline ... >-----Original Message----- >From: Dean Willis [mailto:dean.willis@softarmor.com] >Sent: Thursday, January 17, 2008 6:34 PM >To: Hadriel Kaplan >Cc: IETF SIP List >Subject: Re: [Sip] Vocabulary and problem statement for >Request-URI,retargeting, and SIP routing (long, but read it!) > >Hadriel Kaplan wrote: >> >>> We also have a related operation: >>> >>> 4) Request redirection, which informs an upstream node about a new >>> identity to target instead of the original. >> >> >> This is described from the aspect of the downstream node sending the >> 3xx, right? Vs. what it is for the upstream node recursing on the >> 3xx? (which has no idea if it's performing (2) or (3) when this >> occurs, but I guess could be added to the 3xx contact as a >param such >> as described in JR's draft) > >right. > >> So if a proxy is doing "redirection" it is sending a 3xx, > >Right. > >> whereas the >> upstream proxy or UAC getting that 3xx is not doing redirection, but >> in fact "recursing". >> > >The upstream node is just generating a new request. It really >doesn't know where that request is going, except that the new >request URI was obtained during an attempt to reach the old >one. Not sure what you mean here? The next request-uri is taken from Contact of the redirect response. So it knows where the request is going. > We'd actually have more information from a REFER request. How is the Refer-To header different that Contacts in redirect response? Sanjay > >We've already seen all sorts of hideous problems related to an >upstream proxy recursing on a 3xx. My take is that we should >never do this in a proxy. > >-- >Dean > > >_______________________________________________ >Sip mailing list https://www1.ietf.org/mailman/listinfo/sip >This list is for NEW development of the core SIP Protocol Use >sip-implementors@cs.columbia.edu for questions on current sip >Use sipping@ietf.org for new developments on the application of sip > _______________________________________________ Sip mailing list https://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use sip-implementors@cs.columbia.edu for questions on current sip Use sipping@ietf.org for new developments on the application of sip
- [Sip] Delivering request-URI and parameters to UA… DRAGE, Keith (Keith)
- VS: [Sip] Delivering request-URI and parameters t… Christer Holmberg
- Re: VS: [Sip] Delivering request-URI and paramete… Jonathan Rosenberg
- VS: VS: [Sip] Delivering request-URI and paramete… Christer Holmberg
- [Sip] RE: Delivering request-URI and parameters t… DRAGE, Keith (Keith)
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- Re: [Sip] RE: Delivering request-URI and paramete… Paul Kyzivat
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- RE: [Sip] RE: Delivering request-URI and paramete… Francois Audet
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- Re: [Sip] RE: Delivering request-URI and paramete… Paul Kyzivat
- RE: [Sip] RE: Delivering request-URI and paramete… Francois Audet
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- [Sip] Delivering request-URI and parameters to UA… DRAGE, Keith (Keith)
- RE: [Sip] RE: Delivering request-URI and paramete… Francois Audet
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- Re: [Sip] RE: Delivering request-URI and paramete… Paul Kyzivat
- RE: [Sip] RE: Delivering request-URI and paramete… Francois Audet
- Re: [Sip] RE: Delivering request-URI and paramete… Jeroen van Bemmel
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- [Sip] Delivering request-URI and parameters to UA… Christer Holmberg
- [Sip] RE: Delivering request-URI and parameters t… Elwell, John
- [Sip] RE: Delivering request-URI and parameters t… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- RE: [Sip] Delivering request-URI and parameters t… DRAGE, Keith (Keith)
- RE: [Sip] Delivering request-URI and parameters t… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- Re: [Sip] RE: Delivering request-URI and paramete… Paul Kyzivat
- [Sip] SIP Routers kamalakar.mergu
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] Delivering request-URI and parameters t… youssef.chadli
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- Re: [Sip] RE: Delivering request-URI and paramete… Joel M. Halpern
- Re: [Sip] Delivering request-URI and parameters t… Enrico Marocco
- Re: [Sip] SIP Routers James M. Polk
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- RE: [Sip] RE: Delivering request-URI and paramete… Elwell, John
- [Sip] Vocabulary and problem statement for Reques… Dean Willis
- Re: [Sip] Vocabulary and problem statement for Re… Dean Willis
- RE: [Sip] Vocabulary and problem statement for Re… DRAGE, Keith (Keith)
- RE: [Sip] Vocabulary and problem statement for Re… Hadriel Kaplan
- RE: [Sip] Vocabulary and problem statement for Re… Hadriel Kaplan
- Re: [Sip] Vocabulary and problem statement for Re… Dean Willis
- RE: [Sip] Vocabulary and problem statement for Re… Sanjay Sinha (sanjsinh)
- RE: [Sip] Vocabulary and problem statement for Re… Hadriel Kaplan
- Re: [Sip] Vocabulary and problem statement for Re… Dean Willis
- Re: [Sip] Vocabulary and problem statement for Re… Jeroen van Bemmel
- RE: [Sip] Vocabulary and problem statement for Re… Elwell, John
- Re: [Sip] Vocabulary and problem statement for Re… Paul Kyzivat
- RE: [Sip] Vocabulary and problem statement for Re… Hadriel Kaplan
- RE: [Sip] Vocabulary and problem statement forReq… Elwell, John
- RE: [Sip] Vocabulary and problem statement forReq… Hadriel Kaplan
- Re: [Sip] Vocabulary and problem statement forReq… Paul Kyzivat
- RE: [Sip] Vocabulary and problem statement forReq… Elwell, John
- RE: [Sip] Vocabulary and problem statementforRequ… Elwell, John
- Re: [Sip] Vocabulary and problem statement forReq… Paul Kyzivat
- RE: [Sip] Vocabulary and problem statementforRequ… Christer Holmberg
- Re: [Sip] RE: Delivering request-URI and paramete… Jonathan Rosenberg
- RE: [Sip] Delivering request-URI and parameters t… youssef.chadli
- Re: [Sip] Delivering request-URI and parameters t… Paul Kyzivat
- RE: [Sip] Delivering request-URI and parameters t… youssef.chadli
- RE: [Sip] RE: Delivering request-URI and paramete… Christer Holmberg
- Re: [Sip] Delivering request-URI and parameters t… Paul Kyzivat
- Re: [Sip] Delivering request-URI and parameters t… Hans Erik van Elburg