Re: [Roll] Way forward for draft-clausen-lln-rpl-experiences
Martin Heusse <Martin.Heusse@imag.fr> Tue, 22 May 2012 14:38 UTC
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From: Martin Heusse <Martin.Heusse@imag.fr>
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References: <258D7E2F-F0C7-49EA-B831-81070C86EDB3@thomasclausen.org> <2257A578-B2DF-4145-8393-9BB5D7E1CFBD@cisco.com> <2225986E-992E-43C7-B0CA-9CDA91CE1F3A@thomasclausen.org> <B1B81482-0F7E-4BCE-BBA7-B21949E3C16C@cisco.com> <0958556A-7D9A-4E8B-8091-1D6EC0B813B4@thomasclausen.org> <ACBA7834-F4A1-4D9C-80D6-E76C793A6770@cisco.com> <91E71E23-8797-4C70-A1F8-1CE64BD4ED39@thomasclausen.org> <1D6FEB49-CB62-4FFA-9E34-3FEF82DB644C@cisco.com> <BE51553F-67BE-4652-A8E8-9654BF953A96@thomasclausen.org> <78FB3B50-3150-4729-A089-D9EAF0B02BB6@cs.stanford.edu> <2AF45E51-6C3B-48D9-908F-117ECF0CABAA@imag.fr> <B665C776-CF85-4EF6-8637-77D8F717D229@cisco.com>
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Subject: Re: [Roll] Way forward for draft-clausen-lln-rpl-experiences
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Jean-Philippe, you wrote: > How often do you think that ISIS LSA should be refreshed ? > Or OSPF opaque LSA for TE extensions be flooded ? --> "It depends"? I am not saying that we would need to mention in the (general) RFC when, or at which rate, - global repairs should take place or; - DAO should be sent out on a regular basis… (Although this could perfectly appear in applicability, isn't it?) My point was that the DAO mechanisms are not so clearly defined... Which may be fine: then Mukul is right and if you really need to reach everyone, then P2P RPL is there... Right now, there can be a problem with DAOs - if they are lost along the way (not unlikely if not using DAO-ACKs **even with L2 ACKs**, still possible otherwise) - if a sub-dodag moves... all routes are broken, and we don't really know how to re-establish them (although DTSN could help here, although it's a little vague) - if an inconsistency is detected on a downward route, you'd have to ask everyone to re-send DAOs (Pascal's DAO requests would have helped of course -- this shows up on the list every now and then). --> for opaque LSA, the information in the packet does not matter, but the flooding mechanism is robust and well defined. For DAOs, we know how the packet must look like... > Or BFD packets ? > Or PCEP Keepalive when turned on ? > > Very seriously … these questions apply to all protocols … and you cannot expect the specifications to give you > hard coded values (but default whenever possible); these are topology and application specific, don't you think ? Yes, I agree! Martin
- [Roll] Way forward for draft-clausen-lln-rpl-expe… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Omprakash Gnawali
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Philip Levis
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Pascal Thubert (pthubert)
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Jiazi Yi
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Jiazi Yi
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… C Chauvenet
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Mukul Goyal
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- [Roll] RPL convergence behavior (was: Way forward… Richard Kelsey
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… C Chauvenet
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Ulrich Herberg
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Philip Levis
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Ulrich Herberg
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Mukul Goyal
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Federico Consoli
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Ulrich Herberg
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Cedric-2 LAVENU
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… C Chauvenet
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Axel Colin de Verdiere
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… C Chauvenet
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Carsten Bormann
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Omprakash Gnawali
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Philip Levis
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Martin Heusse
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Omprakash Gnawali
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Martin Heusse
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Mukul Goyal
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Martin Heusse
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Thomas Heide Clausen
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Ulrich Herberg
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… JP Vasseur
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Mukul Goyal
- Re: [Roll] Way forward for draft-clausen-lln-rpl-… Philip Levis