Re: [Sip] questions about drat-bjorkner-serviceroute-00
Henrik Gustafsson <henrik.gustafsson@hotsip.com> Thu, 13 September 2001 10:01 UTC
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Date: Thu, 13 Sep 2001 11:31:25 +0200
From: Henrik Gustafsson <henrik.gustafsson@hotsip.com>
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To: Timothy SOETENS <timothy.soetens@alcatel.be>, sip mailing list <sip@ietf.org>
Subject: Re: [Sip] questions about drat-bjorkner-serviceroute-00
References: <3BA06D0B.E16E78D9@alcatel.be>
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The service route is actually a loose route and the chain of service routes could be considered as a chain of outbound proxies. We didn't like initial routing and filtering services to be visited for a all following request, that is the reason we stated a service-route SHOULD only be inserted in a initial request. If a service needs to keep the call state, you should add a record-route, like you do today. Actually there is an error in the draft, the service route must also be added to the CANCEL. If a message contains both route-headers and service-route-headers, it is a result of an error and the damage is minimized by just go for the route. /Henrik Gustafsson Timothy SOETENS wrote: >Hi All, > >I have some questions regarding the draft >draft-bjorkner-serviceroute-00.txt. > >I think it is a good thing to route requests according to the service a >user is subscribed for, but still I am confused in how the service-route >header is used. > >1. "The service-route header should only be inserted in the first >request in a call leg." (4.1, page 4) Is it not possible that you first >contact the callee before deciding on which service to use? > >2. "If a request contians both route headers and service-route headers >the route headers MUST be used for request routing." (4.1, page 5) >Indeed, if the route headers are used for request routing, it is not >useful to insert service-route headers in the subsequent requests. >However, I have the feeling that service-route headers can be useful in >subsequent requests. > >Comments? > >Thanks, >Tim. > _______________________________________________ Sip mailing list http://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] questions about drat-bjorkner-serviceroute-… Timothy SOETENS
- Re: [Sip] questions about drat-bjorkner-servicero… Henrik Gustafsson
- Re: [Sip] questions about drat-bjorkner-servicero… Timothy SOETENS
- Re: [Sip] questions about drat-bjorkner-servicero… Henrik Gustafsson