Re: [6lowpan] "Advertize on Behalf" flag in ARO
Erik Nordmark <nordmark@sonic.net> Tue, 12 April 2011 18:59 UTC
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Date: Tue, 12 Apr 2011 11:59:32 -0700
From: Erik Nordmark <nordmark@sonic.net>
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To: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
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Cc: Carsten Bormann <cabo@tzi.org>, 6lowpan <6lowpan@ietf.org>
Subject: Re: [6lowpan] "Advertize on Behalf" flag in ARO
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On 3/30/11 1:30 AM, Pascal Thubert (pthubert) wrote: > Hi Carsten: > > RPL recognizes a movement when a DAO information has a stale > DAOSequence. The DAOSequence is an information that the owner of the > advertised target increments. > If we define an interaction whereby we redistribute ND-15 into RPL, then > (probably) the RPL router will inject a host route on behalf of the > host. > When the RPL router injects such a route and then maintains that route, > it still has has to provide an idea of the freshness of the information > that it is injecting in a DAOSequence. > When the host moves to an alternate router, it would have to provide > something so that the new router sets an updated DAOSequence that the > routing update percolates up the DODAG. > IOW, without a TID, a host cannot efficiently move from a router to the > next. Why couldn't the RPL router take a timestamp when it hears an ARO from a host, and convey that in RPL? Then that timestamp can be used to determine the most recent registration i.e., determine the most likely topological location of the host. The beauty of such an approach is that it avoids requiring having the hosts know about routing protocol-specific information like a TID. Erik
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Mukul Goyal
- [6lowpan] Working Group Last call for draft-ietf-… Carsten Bormann
- Re: [6lowpan] Working Group Last call for draft-i… Don Sturek
- Re: [6lowpan] Working Group Last call for draft-i… Pascal Thubert (pthubert)
- [6lowpan] -nd-15: DAD requirement seems too strict Anders Brandt
- [6lowpan] -nd-15: Joining the all-nodes multicast… Anders Brandt
- [6lowpan] -nd-15: Battery host support seems to b… Anders Brandt
- [6lowpan] -nd-15: Purpose of SLLA slightly unclear Anders Brandt
- [6lowpan] 6lowPAN HC in context of draft-thubert-… Anders Brandt
- Re: [6lowpan] -nd-15: Joining the all-nodes multi… Colin O'Flynn
- Re: [6lowpan] -nd-15: Joining the all-nodes multi… Anders Brandt
- Re: [6lowpan] -nd-15: DAD requirement seems too s… Colin O'Flynn
- Re: [6lowpan] -nd-15: DAD requirement seems too s… Anders Brandt
- Re: [6lowpan] -nd-15: Battery host support seems … Mukul Goyal
- Re: [6lowpan] Working Group Last call for draft-i… Dijk, Esko
- [6lowpan] "Advertize on Behalf" flag in ARO Mukul Goyal
- Re: [6lowpan] Working Group Last call for draft-i… Mathieu Goessens
- Re: [6lowpan] Working Group Last call for draft-i… Noriyuki SATO
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Mukul Goyal
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Erik Nordmark
- Re: [6lowpan] -nd-15: Joining the all-nodes multi… Erik Nordmark
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Dijk, Esko
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Carsten Bormann
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Pascal Thubert (pthubert)
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Carsten Bormann
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Mukul Goyal
- Re: [6lowpan] -nd-15: Joining the all-nodes multi… Erik Nordmark
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Anders Brandt
- [6lowpan] How to find the mailbox? (related to "A… Anders Brandt
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Dijk, Esko
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Pascal Thubert (pthubert)
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Pascal Thubert (pthubert)
- Re: [6lowpan] How to find the mailbox? (related t… Richard Kelsey
- Re: [6lowpan] How to find the mailbox? (related t… Jonathan Hui
- Re: [6lowpan] How to find the mailbox? (related t… Pascal Thubert (pthubert)
- Re: [6lowpan] How to find the mailbox? (related t… Noriyuki SATO
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Erik Nordmark
- Re: [6lowpan] "Advertize on Behalf" flag in ARO Erik Nordmark