Re: [Roll] call for consensus for the RPL RPI / RH3 compression
Robert Cragie <robert.cragie@gridmerge.com> Fri, 19 December 2014 15:54 UTC
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Date: Fri, 19 Dec 2014 15:54:30 +0000
From: Robert Cragie <robert.cragie@gridmerge.com>
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To: Routing Over Low power and Lossy networks <roll@ietf.org>, "Pascal Thubert (pthubert)" <pthubert@cisco.com>
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Subject: Re: [Roll] call for consensus for the RPL RPI / RH3 compression
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+1. It sounds like an interop would be the ideal place to test out the various hypotheses on the respective proposals. Robert On 19/12/2014 15:14, Brian Haberman wrote: > > On 12/19/14 10:01 AM, Pascal Thubert (pthubert) wrote: >> That's interesting, Brian. >> >> We decided that for completeness of its expression of the RPL >> operation, the draft should provide a pointer on the way the RPL info >> is carried. We need a minimum set of common stuff to interop and the >> way to express the RPL information is one. We can live with any >> default as long as everyone implements it. Now if optionally people >> support additional ways to make comparisons with that reference, that >> would certainly be good, if the question is still open at that time. >> All in all, if you agree, we can progress the draft in IESG review >> leaving that particular reference open to be changed till later in >> the process? > Why would you expect that to be acceptable? If a piece of the spec is > needed for interoperability, it needs to be there during the review. > Why send it to the IESG if there are still questions on how that piece > will be done? If it is left out, how will anyone know if there is > consensus on the spec as a whole? > > It seems to me that: > > 1. There have been several proposals put forth > > 2. Issues have been raised on each one > > So, it seems prudent (to me) to look at each of the alternatives and > determine which warts everyone concerned is willing to live with. > Running code is a good way to do that. > > Making that determination needs to be done before the spec is sent to > the IESG. > > Regards, > Brian > >> Pascal >> >> >>> -----Original Message----- From: Brian Haberman >>> [mailto:brian@innovationslab.net] Sent: vendredi 19 décembre 2014 >>> 14:26 To: Pascal Thubert (pthubert); Routing Over Low power and >>> Lossy networks Cc: 6man-chairs@tools.ietf.org; >>> int-ads@tools.ietf.org; 6tisch@ietf.org; 6lo- >>> chairs@tools.ietf.org Subject: Re: [Roll] call for consensus for >>> the RPL RPI / RH3 compression >>> >>> Pascal, >>> >>> On 12/19/14 6:59 AM, Pascal Thubert (pthubert) wrote: >>>> The rush Carsten, >>>> >>>> is that the document that will be the base for the 6TiSCH interop >>>> test in Prague is now in last call, and that document refers to >>>> the NHC draft. The question is what should it refer to, and >>>> whatever it refers to should be stable and implementable by now. >>> So, do you view the code for the interop being "set in stone"? As >>> Adrian pointed out, the interop could be a way to work out the >>> tradeoffs of these multiple approaches. That is, running code >>> leads to an IETF specification rather than the other way around. >>> >>> Regards, Brian >>> >>>> Just the first (per your words) is just fine with me. >>>> >>>> Cheers, >>>> >>>> Pascal >>>> >>>>> -----Original Message----- From: Roll >>>>> [mailto:roll-bounces@ietf.org] On Behalf Of Carsten Bormann >>>>> Sent: vendredi 19 décembre 2014 09:17 To: Routing Over Low >>>>> power and Lossy networks Cc: 6man-chairs@tools.ietf.org; >>>>> int-ads@tools.ietf.org; 6tisch@ietf.org; 6lo- >>>>> chairs@tools.ietf.org Subject: Re: [Roll] call for consensus >>>>> for the RPL RPI / RH3 compression >>>>> >>>>> On 17 Dec 2014, at 09:29, Pascal Thubert (pthubert) >>>>> <pthubert@cisco.com> wrote: >>>>>> Decision in Hawaii was that the NHC draft could not be >>>>>> accepted as is, since we should compress also the RH3, and >>>>>> without a clear view of how that would happen, the details of >>>>>> the NHC compression could not be determined. So the NHC >>>>>> approach was abandoned >>>>> That is not at all what I recollect from Hawaii. >>>>> >>>>> The current smorgasbord is: >>>>> >>>>> — various ways to hijack the flow label (dead) — the 6553-NHC >>>>> proposal — ideas for a new mesh header >>>>> >>>>> I’m not going to beat the dead horse of the flow label hijack. >>>>> >>>>> The 6553-NHC proposal mainly needs a decision between the >>>>> three variants (flip a coin, if need be). If time is of the >>>>> essence, 6553-NHC is the natural thing to do. We can always do >>>>> an RFC 6554 NHC compression separately. >>>>> >>>>> The MH proposal is forward-looking and probably the right thing >>>>> for the evolution of 6lo, but probably also not compatible with >>>>> a tight time schedule. >>>>> >>>>> Now, what is the rush? RFC 6553/6554 do exist. >>>>> >>>>> So we get to choose between rushing 6553-NHC to completion or >>>>> using 6553/6554 for now and doing the MH work right (or. more >>>>> likely than just the first, both). I don’t have an opinion on >>>>> wether we need to rush 6553-NHC, but if we need to rush >>>>> anything, this one it is. >>>>> >>>>> Grüße, Carsten >>>>> >>>>> _______________________________________________ Roll mailing >>>>> list Roll@ietf.org https://www.ietf.org/mailman/listinfo/roll > > > _______________________________________________ > Roll mailing list > Roll@ietf.org > https://www.ietf.org/mailman/listinfo/roll
- [Roll] call for consensus for the RPL RPI / RH3 c… Pascal Thubert (pthubert)
- Re: [Roll] call for consensus for the RPL RPI / R… Michael Richardson
- Re: [Roll] [6tisch] call for consensus for the RP… Xavier Vilajosana
- Re: [Roll] call for consensus for the RPL RPI / R… Carsten Bormann
- Re: [Roll] call for consensus for the RPL RPI / R… Pascal Thubert (pthubert)
- Re: [Roll] call for consensus for the RPL RPI / R… Brian Haberman
- Re: [Roll] call for consensus for the RPL RPI / R… Pascal Thubert (pthubert)
- Re: [Roll] call for consensus for the RPL RPI / R… Brian Haberman
- Re: [Roll] call for consensus for the RPL RPI / R… Robert Cragie
- Re: [Roll] [6tisch] call for consensus for the RP… Xavier Vilajosana
- Re: [Roll] call for consensus for the RPL RPI / R… Carsten Bormann
- Re: [Roll] call for consensus for the RPL RPI / R… Pascal Thubert (pthubert)
- Re: [Roll] call for consensus for the RPL RPI / R… Michael Richardson
- Re: [Roll] call for consensus for the RPL RPI / R… Adrian Farrel
- Re: [Roll] call for consensus for the RPL RPI / R… Ralph Droms
- Re: [Roll] call for consensus for the RPL RPI / R… Pascal Thubert (pthubert)
- Re: [Roll] [6lo] call for consensus for the RPL R… Ralph Droms
- Re: [Roll] call for consensus for the RPL RPI / R… Ralph Droms
- Re: [Roll] [6tisch] [6lo] call for consensus for … Pascal Thubert (pthubert)
- Re: [Roll] [6tisch] [6lo] call for consensus for … Michael Richardson
- Re: [Roll] [6lo] call for consensus for the RPL R… Michael Richardson
- Re: [Roll] [6tisch] [6lo] call for consensus for … Ralph Droms
- Re: [Roll] [6tisch] [6lo] call for consensus for … Michael Richardson
- Re: [Roll] [6tisch] [6lo] call for consensus for … Tom Taylor
- Re: [Roll] [6tisch] [6lo] call for consensus for … Pascal Thubert (pthubert)
- Re: [Roll] [6tisch] [6lo] call for consensus for … Michael Richardson
- Re: [Roll] [6tisch] [6lo] call for consensus for … Pascal Thubert (pthubert)
- Re: [Roll] [6lo] call for consensus for the RPL R… Carsten Bormann
- Re: [Roll] [6lo] call for consensus for the RPL R… Robert Cragie