Subject: [manet] AODV better route update mechanism

From: Vin <[email-masked]>
Date: Thu, 22 Jan 2004 11:01:27 -0800 (PST)

Hi all. I need some help in tying some loose ends
about AODV routing.

1)What exactly is the mechanism in AODV to take
advantage of any newer better routes that exist
compared to the original one formed through RREQ-RREP
mechanism? ( consider an active path where the
original route doesnt expire due to
ACTIVE_ROUTE_TIMEOUT)

To my knowledge, DSR overhears transmissions
promiscously and if it finds a better route,updates
its routing table. 
But AODV doesnt use this method. Thats why my question
arises.

2) Also where does such a route update occur if its
done? Can intermediate nodes do this or is it only
restricted to source nodes?

Thanks in advance,
Vin

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