Re: [Roll] [roll] #102: Why have a Data Option in P2P-RPL. Why have a sequence number in the data option?
"roll issue tracker" <trac+roll@trac.tools.ietf.org> Mon, 04 June 2012 14:16 UTC
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Subject: Re: [Roll] [roll] #102: Why have a Data Option in P2P-RPL. Why have a sequence number in the data option?
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#102: Why have a Data Option in P2P-RPL. Why have a sequence number in the data
option?
Changes (by jpv@…):
* status: new => closed
* resolution: => fixed
Comment:
Resolution:
1) Data Option is a sensible and necessary design choice for home
automation networks. Home automation frequently requires low-latency
messages to be delivered to targets for which the originator has no route.
The fastest way to do that in a reactive routing scheme is to piggyback
the data on the routing packets. The other option would be to use simple
flooding, with no trickle control, which would involve generating a huge
number of packets. Piggybacking data on routing packets helps avoid
generating extra packets.
2) There is no need for the origin to change the data option during a
route discovery. So there is no need for a sequence number. Further, P2P-
RPL would explictly forbid an origin to change the data option during a
route discovery.
--
-----------------------------------+----------------------
Reporter: jpv@… | Owner: mukul@…
Type: defect | Status: closed
Priority: major | Milestone:
Component: p2p-rpl | Version:
Severity: Submitted WG Document | Resolution: fixed
Keywords: |
-----------------------------------+----------------------
Ticket URL: <http://trac.tools.ietf.org/wg/roll/trac/ticket/102#comment:1>
roll <http://tools.ietf.org/wg/roll/>
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