Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local
Don Sturek <d.sturek@att.net> Thu, 25 July 2013 13:07 UTC
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Date: Thu, 25 Jul 2013 06:06:59 -0700
From: Don Sturek <d.sturek@att.net>
To: consultancy@vanderstok.org, Routing Over Low power and Lossy networks <roll@ietf.org>
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Thread-Topic: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local
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Subject: Re: [Roll] trickle-mcast-04 - Clarify scope value of 3 - subnet-local
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Hi Peter, What you wrote seems exactly correct. The one area that I think needs some work (maybe 6MAN?) is the forwarding rules when encountering scope-3 packets. For example, if I am a border router with 5 interfaces each with a different prefix, which of those interfaces do I forward the packet to and which do I not (eg, which interfaces face inward in my topology and which face outward). If there is already an RFC on this topic a reference would be greatly appreciated. Don On 7/25/13 5:53 AM, "peter van der Stok" <stokcons@xs4all.nl> wrote: >For me RFC 1136 was quite clarifying. > >It states that the Internet subnet term is ambiguous >- It refers to one-hop IP connectivity >- it refers to address hierarchy > >RFC 1136 defines the adminsitrative domain and the routing domain > >IMO, routing domain is nicely defined in RFC 1136. > >an adminsitrative domain can contain one or more routing domains. > >I translate a mesh subnet running RPL as a routing domain >while an adminstrative domain can contain several interconnected RPL >domains > >For the latter I understood we want to use scope-3 to run for example >service discovery. >and in our case multicast to multiple devices where the network topology >is motivated by history, and organizational and physical constraints. > >Any mistakes in the above? > >Peter > > >Ralph Droms (rdroms) schreef op 2013-07-25 11:13: >> Michael... >> >> On Jul 24, 2013, at 6:37 PM 7/24/13, Michael Richardson >> <mcr+ietf@sandelman.ca> wrote: >> >> >> Ralph Droms (rdroms) <rdroms@cisco.com> wrote: >> I would still like an explanation of why "subnet" is the wrong term. >> >> When would scope-3 would be used such that it would not correspond to >> the set >> of links on which a "/64" (or other size) is used? >> >> Hm, I thought I responded but apparently not... >> >> This change to scope 0x03 is not just for MPL, so we don't know how >> else it might be used in the future. >> >> I understand, but perhaps it would be better, if, when another use case >> comes >> along, they write a document explaining why scope-3 is correct and >> non-conflicting with the trickle mcast use case. >> >> I don't agree; in my opinion, it's better to release scope 0x03 from >> "reserved" state and give guidelines for its use. >> >> Let's see how 6man WG consensus develops... >> >> - Ralph >> >> >> Specific examples: >> 1) two adjacent RPL domains, which do not share a prefix but are to be >> considered as one realm for mDNS >> >> I accept that this is a plausible scenario, but I believe that it >> presupposes a technical answer from the not-yet occured sdnsext BOF. >> sDNSext could well mandate a proxy solution where actual multicast >> packets do >> not cross that boundary. >> >> 2) one RPL domain and one other non-RPL subnet that are to be >> considered as one realm for mDNS >> >> Do you mean, in fact, one LLN and another non-LLN technology, which >> have MPL >> capable routers connecting them? >> >> I write it this way, because I think that there is a belief that RPL >> can only >> be used in LLNs, while the RPL architecture is very specifically for >> multiple >> link types, and I find it hard to imagine an MPL capable router which >> does >> not also speak RPL. >> >> -- >> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works >> >> >> >> _______________________________________________ >> 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] [roll] #132: draft-ietf-roll-trickle-mcast… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- [Roll] trickle-mcast-04 - Clarify scope value of … Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ulrich Herberg
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ulrich Herberg
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Don Sturek
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ulrich Herberg
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Jonathan Hui (johui)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ulrich Herberg
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ralph Droms (rdroms)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Don Sturek
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ulrich Herberg
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ralph Droms (rdroms)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Pascal Thubert (pthubert)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ralph Droms
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Abdussalam Baryun
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Robert Cragie
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Mark ZZZ Smith
- Re: [Roll] trickle-mcast-04 - Clarify scope value… peter van der Stok
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ralph Droms (rdroms)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ulrich Herberg
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Robert Cragie
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Don Sturek
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ralph Droms (rdroms)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… peter van der Stok
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Don Sturek
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Ralph Droms (rdroms)
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Robert Cragie
- Re: [Roll] trickle-mcast-04 - Clarify scope value… Michael Richardson
- Re: [Roll] trickle-mcast-04 - Clarify scope value… JINMEI Tatuya / 神明達哉
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms (rdroms)
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Carsten Bormann
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Don Sturek
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms (rdroms)
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Robert Cragie
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Don Sturek
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Don Sturek
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms (rdroms)
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms (rdroms)
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Richard Kelsey
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms (rdroms)
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Robert Cragie
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Robert Cragie
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Robert Cragie
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… peter van der Stok
- [Roll] draft-ietf-6man-multicast-scopes updates R… Ralph Droms
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… Ralph Droms
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Ralph Droms
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Kerry Lynn
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Robert Cragie
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… peter van der Stok
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Popa, Daniel
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Robert Cragie
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Ralph Droms (rdroms)
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Ralph Droms (rdroms)
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Kerry Lynn
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] Consensus Call -- resolution for #132:… Michael Richardson
- [Roll] Consensus Call -- resolution for #132: dra… Michael Richardson
- Re: [Roll] Consensus Call -- resolution for #132:… Kerry Lynn
- Re: [Roll] Consensus Call -- resolution for #132:… yoshihiro.ohba
- Re: [Roll] Consensus Call -- resolution for #132:… Michael Richardson
- Re: [Roll] Consensus Call -- resolution for #132:… Kerry Lynn
- Re: [Roll] Consensus Call -- resolution for #132:… Ralph Droms (rdroms)
- Re: [Roll] Consensus Call -- resolution for #132:… yoshihiro.ohba
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] Consensus Call -- resolution for #132:… Popa, Daniel
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… 神明達哉
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… 神明達哉
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… 神明達哉
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Dave Thaler
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Dave Thaler
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… 神明達哉
- Re: [Roll] draft-ietf-6man-multicast-scopes updat… Stig Venaas
- Re: [Roll] Consensus Call -- resolution for #132:… Robert Cragie
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] Consensus Call -- resolution for #132:… Michael Richardson
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker
- Re: [Roll] [roll] #132: draft-ietf-roll-trickle-m… roll issue tracker