Re: [sipcore] Location Conveyance -04 submitted, here's the changes
<hannu.hietalahti@nokia.com> Tue, 02 November 2010 06:49 UTC
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From: hannu.hietalahti@nokia.com
To: keith.drage@alcatel-lucent.com, rbarnes@bbn.com, jmpolk@cisco.com
Date: Tue, 02 Nov 2010 07:48:25 +0100
Thread-Topic: [sipcore] Location Conveyance -04 submitted, here's the changes
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References: <201010270432.o9R4WLe8013111@sj-core-5.cisco.com> <625A3E65-E441-4340-A5E2-B847F8B964CF@bbn.com> <201010271838.o9RIcjgG008761@sj-core-5.cisco.com> <63EEFC46-26FC-4A69-B1A7-2CC79583B8B2@bbn.com> <EDC0A1AE77C57744B664A310A0B23AE219707BC9@FRMRSSXCHMBSC3.dc-m.alcatel-lucent.com> <5BAF85033CB5F3439C4DE153165522B1109FDD491C@NOK-EUMSG-06.mgdnok.nokia.com> <EDC0A1AE77C57744B664A310A0B23AE21970860F@FRMRSSXCHMBSC3.dc-m.alcatel-lucent.com>
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Subject: Re: [sipcore] Location Conveyance -04 submitted, here's the changes
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Thanks, Keith, I was not sure why the public network would add its idea of the user location if it has received one from the corporate network already, but I can't see why it would not be allowed to do so either. So it seems your are right. BR, Hannu Hietalahti 3GPP TSG CT Chairman tel: +358 40 5021724 >-----Original Message----- >From: ext DRAGE, Keith (Keith) [mailto:keith.drage@alcatel-lucent.com] >Sent: 02 November, 2010 01:04 >To: Hietalahti Hannu (Nokia-CIC/Oulu); rbarnes@bbn.com; >jmpolk@cisco.com >Cc: sipcore@ietf.org >Subject: RE: [sipcore] Location Conveyance -04 submitted, >here's the changes > >If in 3GPP we look at subscription based business trunking arrangement. > >The end terminal includes one location. > >The enterprise network supporting the UE adds its own view of >where the UE is. > >The public network adds its own view of the location. > >That makes three. > >regards > >Keith > >> -----Original Message----- >> From: hannu.hietalahti@nokia.com [mailto:hannu.hietalahti@nokia.com] >> Sent: Monday, November 01, 2010 11:46 AM >> To: DRAGE, Keith (Keith); rbarnes@bbn.com; jmpolk@cisco.com >> Cc: sipcore@ietf.org >> Subject: RE: [sipcore] Location Conveyance -04 submitted, >> here's the changes >> >> Hi Keith, >> >> yes, I remember you made this comment at Maastricht already, >> and I agree with you that from 3GPP viewpoint we need >> encoding that allows *more than one* piece of location information. >> >> In 3GPP case those would be typically the one obtained from >> the terminal and the one added by the serving network if it >> thinks it knows better. >> >> But my imagination runs out after these two. Are you saying >> we need more than 2? >> >> BR, >> Hannu Hietalahti >> 3GPP TSG CT Chairman >> tel: +358 40 5021724 >> >> >> >-----Original Message----- >> >From: sipcore-bounces@ietf.org >> >[mailto:sipcore-bounces@ietf.org] On Behalf Of ext DRAGE, >> Keith (Keith) >> >Sent: 28 October, 2010 16:01 >> >To: Richard L. Barnes; James M. Polk >> >Cc: sipcore@ietf.org >> >Subject: Re: [sipcore] Location Conveyance -04 submitted, >here's the >> >changes >> > >> >To be more specific - we had a document that allowed multiple >> >locations. It was reduced to one without any decision in >> that direction >> >being made by the working group. It needs to go back to multiple >> >values. >> > >> >In my view there are clear use cases where multiple values are >> >required. >> > >> >regards >> > >> >Keith >> > >> >> -----Original Message----- >> >> From: sipcore-bounces@ietf.org >> >> [mailto:sipcore-bounces@ietf.org] On Behalf Of Richard L. Barnes >> >> Sent: Thursday, October 28, 2010 1:19 PM >> >> To: James M. Polk >> >> Cc: sipcore@ietf.org >> >> Subject: Re: [sipcore] Location Conveyance -04 submitted, >> here's the >> >> changes >> >> >> >> >> I'm pretty comfortable with the document at this point, >> >> but have just >> >> >> one minor question: Why are you still limiting the number >> >> of location >> >> >> values? Why are three values harmful, but not two? This >> >> still seems >> >> >> like pointless ABNF legislation. >> >> > >> >> > we only added the ability to have a second locationValue >> >because of >> >> > your rough-loc ID. Before that, we were firm in not >> >> allowing more than >> >> > one. Given that choice, which do you like? >> >> > >> >> > Remember, this was Jon's proposal in SIPCORE in Anaheim, >> which it >> >> > seemed everyone and their brother was agreeable with, so ... >> >> >> >> >> >> As I recall, the proposal was to just remove the limit on >> >the number >> >> of locations values, not to bump it up by one. From the minutes: >> >> >> >> "Restore Geolocation header that has multiple URIs, even >though we >> >> would not recommend it. Entities inserting persence are >> responsbile >> >> for any resulting errors. The header parameters >> distinguishing URIs >> >> would not be added back in." >> >> >> >> At least in my mind, multiple != 2. >> >> >> >> --Richard >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> > james >> >> > >> >> > >> >> >> --Richard >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> On Oct 27, 2010, at 12:32 AM, James M. Polk wrote: >> >> >> >> >> >>> SIPCORE >> >> >>> >> >> >>> I've submitted the next version of Location Conveyance (-04) >> >> >>> >> >> http://www.ietf.org/internet-drafts/draft-ietf-sipcore-locatio >> >> n-conveyance-04.txt >> >> >>> and I believe this version has addressed each open >> item from the >> >> >>> mailing list, as well as what was discussed and agreed >> to in the >> >> >>> Maastricht meeting. >> >> >>> >> >> >>> I have attempted to identify each open issue with the >specific >> >> >>> resolution here (in no particular order): >> >> >>> >> >> >>> - Martin wanted Section 3 to be broken up into >> subsections, each >> >> >>> revolving around each of the 4 diagrams. I have done this. >> >> >>> >> >> >>> - allowed a maximum of two (up from one) locationValues to be >> >> >>> present in the Geolocation header value. The text however >> >> recommends >> >> >>> against inserting a second value. This was agreed to in >> >> Maastricht. >> >> >>> >> >> >>> - Because we're allowing a max of two locationValues, >> >> they can be in >> >> >>> separate Geolocation headers in the SIP request. This >scenario >> >> >>> necessitates bring a previous version's paragraph in >> >> stating that a >> >> >>> 'SIP intermediary MUST inspect all instances of each >> Geolocation >> >> >>> header before considering the routing-allowed parameter to be >> >> >>> considered =yes', to ensure there isn't a conflict in >> the 'other' >> >> >>> Geolocation header that states the policy is =no. >> >> >>> >> >> >>> - with the ability to add a second locationValue, it is >> >> necessary to >> >> >>> warn against doing this (confusion at the LRs). >> >> >>> >> >> >>> - Added the "you break it you bought it" philosophy to SIP >> >> >>> intermediaries that choose to insert a second location >> where one >> >> >>> already existed, especially for inserting a location >> URI in the >> >> >>> downstream SIP request. >> >> >>> >> >> >>> - Fixed the ABNF to handle zero, one or two (but no more) >> >> >>> locationValues according to the agreement in Maastricht. >> >> There is a >> >> >>> one-off use case which won't be in play very often, but >> >> is a WG item >> >> >>> in ECRIT that several wanted to allow the possibility for >> >> (involving >> >> >>> allowing one coarse and one highly accurate location in >> >> the same SIP >> >> >>> request). >> >> >>> >> >> >>> - Paul K. wanted the use-case in which a SIP intermediary >> >> inserts a >> >> >>> locationValue where one didn't exist previously, and >> >> received a 424 >> >> >>> (Bad Location Information) to that inserted location, >> from having >> >> >>> the 424 propagate towards the UAC (as the UAC might not >> >> know what to >> >> >>> do with a 424). This is now covered in Section 4.3. >> >> >>> >> >> >>> - changed existing text to "MUST NOT" from "does not" >> about a 424 >> >> >>> not terminating an existing dialog (just increased the >> >strength of >> >> >>> this. >> >> >>> >> >> >>> - I added the 424 to the table 2 entry in which the >> Geolocation >> >> >>> header can be in only this response. >> >> >>> >> >> >>> - I added text stating the conditions for adding a >Geolocation >> >> >>> header value to the 424, to make it clear what is and >> what isn't >> >> >>> allowed for this. >> >> >>> >> >> >>> - Martin wanted me to add back in the top level >> Geolocation-Error >> >> >>> codes 100, 200, 300 and 400, which I did in section 4.3. >> >> >>> >> >> >>> - rejected the idea that the geolocation option-tag >> hasn't been >> >> >>> justified. >> >> >>> >> >> >>> - Added RFCs 2616, 2818 and HELD Deref ID to the >> >> references section >> >> >>> because I added the ability to include HTTP: and >> HTTPS: URIs, and >> >> >>> stated if received, they should be dereferenced >> according to the >> >> >>> HELD Deref doc. >> >> >>> >> >> >>> - changed the Section 5 examples how Martin wanted them. >> >> >>> >> >> >>> - Stated that GEO-URIs are not appropriate for the SIP >> >Geolocation >> >> >>> header, according to the discussion during the >> Maastricht Geopriv >> >> >>> meeting. >> >> >>> >> >> >>> - we changed the privacy section, and included a ref to >> >> the Geopriv >> >> >>> Arch doc, according to the agreement in Geopriv at Maastricht. >> >> >>> >> >> >>> >> >> >>> Comments are encouraged >> >> >>> >> >> >>> We plan to request (3rd?) WGLC during the SIPCORE meeting >> >> in Beijing >> >> >>> (to give folks a sense of our plans). >> >> >>> >> >> >>> James/Brian/Jon >> >> >>> >> >> >>> >> >> >>> _______________________________________________ >> >> >>> sipcore mailing list >> >> >>> sipcore@ietf.org >> >> >>> https://www.ietf.org/mailman/listinfo/sipcore >> >> > >> >> > _______________________________________________ >> >> > sipcore mailing list >> >> > sipcore@ietf.org >> >> > https://www.ietf.org/mailman/listinfo/sipcore >> >> >> >> _______________________________________________ >> >> sipcore mailing list >> >> sipcore@ietf.org >> >> https://www.ietf.org/mailman/listinfo/sipcore >> >> >> >_______________________________________________ >> >sipcore mailing list >> >sipcore@ietf.org >> >https://www.ietf.org/mailman/listinfo/sipcore >> >
- [sipcore] Location Conveyance -04 submitted, here… James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … Richard L. Barnes
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John
- Re: [sipcore] Location Conveyance -04 submitted, … James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John
- Re: [sipcore] Location Conveyance -04 submitted, … James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John
- Re: [sipcore] Location Conveyance -04 submitted, … Richard L. Barnes
- Re: [sipcore] Location Conveyance -04 submitted, … DRAGE, Keith (Keith)
- Re: [sipcore] Location Conveyance -04 submitted, … Peterson, Jon
- Re: [sipcore] Location Conveyance -04 submitted, … Thomson, Martin
- Re: [sipcore] Location Conveyance -04 submitted, … James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … James M. Polk
- Re: [sipcore] Location Conveyance -04 submitted, … hannu.hietalahti
- Re: [sipcore] Location Conveyance -04 submitted, … DRAGE, Keith (Keith)
- Re: [sipcore] Location Conveyance -04 submitted, … hannu.hietalahti
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John
- Re: [sipcore] Location Conveyance -04 submitted, … DRAGE, Keith (Keith)
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John
- Re: [sipcore] Location Conveyance -04 submitted, … Peterson, Jon
- Re: [sipcore] Location Conveyance -04 submitted, … Richard L. Barnes
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John
- Re: [sipcore] Location Conveyance -04 submitted, … hannu.hietalahti
- Re: [sipcore] Location Conveyance -04 submitted, … hannu.hietalahti
- Re: [sipcore] Location Conveyance -04 submitted, … Elwell, John