Re: [manet] LOADng works
"JP Vasseur (jvasseur)" <jvasseur@cisco.com> Sat, 03 November 2012 08:18 UTC
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From: "JP Vasseur (jvasseur)" <jvasseur@cisco.com>
To: Jon Black <jblack.ietf@yahoo.com>
Thread-Topic: [manet] LOADng works
Thread-Index: AQHNuF9dW2UMul6sMEaXNf6TARakEQ==
Date: Sat, 03 Nov 2012 08:18:06 +0000
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Cc: "Timothy J. Salo" <salo@saloits.com>, "manet@ietf.org" <manet@ietf.org>
Subject: Re: [manet] LOADng works
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Once again you always restart from scratch ignoring emails - I was providing you the rationale on why you cannot use one deployment of LLN (not even knowing any details) to claim that the protocol actually works, this is in reply to Ulrich's email. If indeed, MANET designs a reactive routing protocol for MANET including LLNs, since it was (finally) said that this could work in very specific (restrained) conditions, otherwise we would need to use the protocol the IETF has designed for LLN (RFC6550 and companion) then let's specifically remove LLN (not implicitly, by removing a section or chaining a name) from the protocol designed in MANET, and use that protocol (RFC6550) for LLNs. On Nov 2, 2012, at 5:23 PM, Jon Black wrote: see line [Jon] ________________________________ From: JP Vasseur (jvasseur) <jvasseur@cisco.com<mailto:jvasseur@cisco.com>> Hi Ulrich, On Nov 2, 2012, at 1:22 PM, Ulrich Herberg wrote: JP, On Fri, Nov 2, 2012 at 10:09 AM, JP Vasseur (jvasseur) <jvasseur@cisco.com<mailto:jvasseur@cisco.com>> wrote: On Nov 2, 2012, at 12:06 PM, Timothy J. Salo wrote: >>>> JP> This is not just a question of "how large" it is … but also how >>>> dynamic. I could show you few hundreds (if not less number of nodes) >>>> not working if the traffic pattern is too dynamic. This is a >>>> fundamental problem. > > No, it is a fundamental and well-known characteristic of reactive > routing protocols. It is a problem only when this behavior doesn't > match the characteristics of the network in which the reactive routing > protocol is deployed. JP> Indeed … and this is why you have a fundamental issue with you have extremely high BER, PDR, low bandwidth … as we do in LLNs. Flooding in these networks is driven by user traffic and of course is highly undesirable. Slightly increase the use traffic and you will see the impact on the control plane ... Yes, but as Timothy mentioned, there are cases where you don't have much user traffic. JP> Then if you recognize that reactive routing is an issue when user traffic increases, this is a good start. When do you put the limit ? By the way, the topology is another argument, so does the bandwidth. Let me be even more specific: * Case 1: 75KBits/s, P2MP traffic (not referring to multicast), small broadcast domains, meter readout every 24h. Certainly you can deploy a reactive routing protocol ? Still I do not see why you would not use a pro-active routing but this is another question Now what if you move to case 2: * Unsolicited alarms using meters, DA, EV traffic for bill roaming ? Well you do not have a major problem and when designing protocol we need to take this into account. Please see RFC RFC 5548<http://datatracker.ietf.org/doc/rfc5548/> (draft-ietf-roll-urban-routing-reqs<http://datatracker.ietf.org/doc/draft-ietf-roll-urban-routing-reqs/>) Routing Requirements for Urban Low-Power and Lossy Networks 2009-05 RFC 5548 (Informational) Adrian Farrel RFC 5673<http://datatracker.ietf.org/doc/rfc5673/> (draft-ietf-roll-indus-routing-reqs<http://datatracker.ietf.org/doc/draft-ietf-roll-indus-routing-reqs/>) Industrial Routing Requirements in Low-Power and Lossy Networks 2009-10 RFC 5673 (Informational) Adrian Farrel RFC 5826<http://datatracker.ietf.org/doc/rfc5826/> (draft-ietf-roll-home-routing-reqs<http://datatracker.ietf.org/doc/draft-ietf-roll-home-routing-reqs/>) Home Automation Routing Requirements in Low-Power and Lossy Networks 2010-04 RFC 5826 (Informational) Errata<http://www.rfc-editor.org/errata_search.php?rfc=5826> Adrian Farrel RFC 5867<http://datatracker.ietf.org/doc/rfc5867/> (draft-ietf-roll-building-routing-reqs<http://datatracker.ietf.org/doc/draft-ietf-roll-building-routing-reqs/>) Building Automation Routing Requirements in Low-Power and Lossy Networks 2010-06 RFC 5867 (Informational) [Jon] Which RFC? Do you mean RFC 5826 or 5867 both of which seem to need RPL P2P which looks like a new protocol? Do you mean RFC 5548 which seems to be the use case from EDF that is using a reactive protocol (LOADng), or RFC5673 which no one has tried. Just because something was designed to do something you can't claim that it actually will do it. The Titanic was designed to be unsinkable... But I digress, since you did. It does appear that your objection is the name ('cause it could confuse someone into think they could use this manet protocol in an LLN - which as you said was their choice) and that there is one small paragraph there it says that they might be able to use this protocol in their LLN. Really, this is what all the hub-bub is about. After all they really are both AODV++. So we find a new name and remove one paragraph. I think now the debate is what is the proper base from which to start. Which document is clearer, and more stable. Jon
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- [manet] Something I mis-read in Thomas's earlier … Charles E. Perkins
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- Re: [manet] LOADng works Jon Black
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- Re: [manet] Mobility and eMeters (was: no subject) Alexandru Petrescu
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- Re: [manet] (no subject) JP Vasseur (jvasseur)
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] Mobility and eMeters (was: no subject) Joe Macker
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works Timothy J. Salo
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works Ulrich Herberg
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works C Chauvenet
- Re: [manet] LOADng works Jiazi YI
- Re: [manet] LOADng works Ulrich Herberg
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works Christopher Dearlove
- Re: [manet] LOADng works Joseph Macker
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works Philip Levis
- Re: [manet] LOADng works Joe Macker
- Re: [manet] LOADng works C Chauvenet
- Re: [manet] LOADng works Abdussalam Baryun
- Re: [manet] LOADng works Abdussalam Baryun
- Re: [manet] LOADng works Daniel He
- Re: [manet] LOADng works JP Vasseur (jvasseur)
- Re: [manet] LOADng works Daniel He
- Re: [manet] LOADng works Joseph Macker
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works Jon Black
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- Re: [manet] LOADng works Abdussalam Baryun
- Re: [manet] LOADng works Thomas Heide Clausen
- Re: [manet] LOADng works C Chauvenet
- Re: [manet] LOADng works Jon Black
- Re: [manet] LOADng works C Chauvenet
- Re: [manet] LOADng works Charles E. Perkins
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