Re: [salud] Christer's review of draft-ietf-salud-alert-info-urns-09
Laura Liess <laura.liess.dt@googlemail.com> Tue, 21 January 2014 13:30 UTC
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References: <7594FB04B1934943A5C02806D1A2204B1C5EF0E7@ESESSMB209.ericsson.se> <201401072131.s07LVQZs2347719@shell01.TheWorld.com> <7594FB04B1934943A5C02806D1A2204B1C5F00D5@ESESSMB209.ericsson.se> <201401162107.s0GL7AKI2944531@shell01.TheWorld.com> <7594FB04B1934943A5C02806D1A2204B1D108F92@ESESSMB209.ericsson.se> <CACWXZj033ssRvpJPQ=V8LACYUW9SpySbf+Pi86XR6eu5YWmdcw@mail.gmail.com> <7594FB04B1934943A5C02806D1A2204B1D11179F@ESESSMB209.ericsson.se>
Date: Tue, 21 Jan 2014 14:30:17 +0100
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From: Laura Liess <laura.liess.dt@googlemail.com>
To: Christer Holmberg <christer.holmberg@ericsson.com>
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Cc: "salud@ietf.org" <salud@ietf.org>
Subject: Re: [salud] Christer's review of draft-ietf-salud-alert-info-urns-09
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Hi Christer, thank you. What about moving the third paragraph to subsection 1.1? Could this work for you? Laura 2014/1/21 Christer Holmberg <christer.holmberg@ericsson.com> > Hi Laura, > > SIPCORE some time ago decided not to use/maintain the header field > tables anymore, so that is why I didn't include it in my change suggestion. > > But, if you want to also change the table, I won’t object 😊 > > Regards, > > Christer > > Sent from Windows Mail > > *From:* laura.liess.dt@googlemail.com > *Sent:* Tuesday, January 21, 2014 12:54 PM > *To:* Hans-Christer Holmberg <christer.holmberg@ericsson.com> > *Cc:* Dale R. Worley <worley@ariadne.com>, salud@ietf.org > > Christer, Dale, > > IMO, the draft updates the RFC 3261 because it allows the usage of the > Alert-Info header field in all provisional responses 1xx except the 100 > response. This is described in the first two paragraphs of Section 1.2. > This paragraphs are OK in this section. > The third paragraph is usefull (it explains what the draft does) but, as > Christer remarked, it does not describe the update of the RFC3261 and so > it does not belong to this section. I would move this paragraph at the end > of Section 1.1. What do you think? > > Concerning the structure if the Section 1.2, I will put the text from > section 1.2 into a new main Section 2 and structure it as Christer proposes > in http://www.ietf.org/mail-archive/web/salud/current/msg00454.html. > But I think there are two places where we should update the 3261 text: > 1) Section 20.4 as proposed by Christer and > > 2) Table 2: Summary of header fields, A--O on page 161, the " 180" in > the row > > Alert-Info 180 ar - - - o - - > > should be changed in "1xx (excepting 100)" > > so we probably need two subsections "New text repalcing the > text.........of RFC 3261" . > Opinions? > > Thank you > Laura > > > > 2014/1/20 Christer Holmberg <christer.holmberg@ericsson.com> > >> Hi, >> >> >> BTW, the following sentence is unclear to me: >> >> >> >> "In practice, this specification extends Alert-Info in that it will >> >> cause the use of a new class of URIs and the use of multiple URIs." >> >> >> >> What does it mean? >> > >> > The idea is that, while 3261 syntactically and semantically *allows* >> non-HTTP URIs in Alert-Info, nobody ever used non-HTTP URIs in Alert-Info, >> and nobody implemented an interpretation of those URIs. >> > Thus, even though we are not changing what is officially permitted, >> implementers will have to change their code because the new *practice* will >> be an extension of the old practice. (And both the new practice and the >> old practice are a small subset of what is permitted by 3261.) >> >> Well, then you should use different wording. Because, the draft does not >> extend Alert-Info, it simply describes the usage of a new URN in the header >> field. >> >> >> >>>> Q9: >> >>>> ----- >> >>>> >> >>>> Section 4 defines the ABNF for the URN, but [there] is no text on >> >>>> how to "map" it into the Alert-Info header field ABNF: >> >>>> >> >>>> For example, I assume that the URN is encoded using the opaque-part >> >>>> format of the absoluteURI, and that the scheme value is "urn". I >> >>>> think it would be good to indicate that. >> >>> >> >>> Actually, we're depending on the fact (unstated in RFC 3261) that >> >>> any "absolute" URI (per RFC 3986) is allowed as a header field value >> >>> in Alert-Info, and that the URNs we are defining conform to the >> >>> absolute URI syntax. If the syntax for <absoluteURI> in RFC 3261 >> >>> didn't allow all absolute URIs, we'd have to amend RFC 3261. >> >> >> >> There are two different "structures" for absolute URI, and the URNs >> >> only fit into the opaque-part structure. >> >> >> >> In addition, as the URI requires a scheme value, I think we should >> >> explicitly say what it is. >> > >> > I guess my point is that the 3261 ABNF already allows all alert URNs to >> appear in Alert-Info, and there is no need to specify exactly how alert >> URNs are compatible with the 3261 ABNF. Anyone who cares exactly how this >> draft is directly compatible with the ABNF can see that by looking at the >> ABNF. >> > >> > Have there been other situations where this sort of syntax explication >> has been provided? >> >> I don't know - I am just commenting on how I think the draft could from >> my perspective be improved :) >> >> Regards, >> >> Christer >> _______________________________________________ >> salud mailing list >> salud@ietf.org >> https://www.ietf.org/mailman/listinfo/salud >> > > > _______________________________________________ > salud mailing list > salud@ietf.org > https://www.ietf.org/mailman/listinfo/salud > >
- [salud] Christer's review of draft-ietf-salud-ale… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Dale R. Worley
- Re: [salud] Christer's review of draft-ietf-salud… Paul Kyzivat
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Paul Kyzivat
- Re: [salud] Christer's review of draft-ietf-salud… Dale R. Worley
- Re: [salud] Christer's review of draft-ietf-salud… Paul Kyzivat
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Laura Liess
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Laura Liess
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… DRAGE, Keith (Keith)
- Re: [salud] Christer's review of draft-ietf-salud… Laura Liess
- Re: [salud] Christer's review of draft-ietf-salud… Laura Liess
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Dale R. Worley
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Laura Liess
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- Re: [salud] Christer's review of draft-ietf-salud… Laura Liess
- Re: [salud] Christer's review of draft-ietf-salud… Christer Holmberg
- [salud] Fwd: Christer's review of draft-ietf-salu… Laura Liess
- Re: [salud] Fwd: Christer's review of draft-ietf-… Christer Holmberg