[ns] flowstate in DSR

[G.V.Raju]

Hi!,

as far as my knowledge is concerned, the flow-state mechanism in NS-2 
reduces the overhead due to source routing. ie., once the route is 
established, the packets instead of carrying full path in their headers 
(from source to destination) make use of flow-state mechanism to 
reduce per packet overhead.

It works by allowing most packets to be sent without a source route 
header once the route is established, thus substantially reducing 
overhead. (this is also called as implicit source routing)

For more info. read the following the paper.
"Implicit Source Routes for On-Demand Ad Hoc Network Routing". Yih-Chun 
Hu. and David B.Johnson

also, following link may be helpful to you.
http://mailman.isi.edu/pipermail/ns-users/2002-December/028430.html

bye,
raju.

>
>
> hello ns-users,
>
> can anyone tell me what exactly is the flow-state information maintained
> by DSR? i see a lot of code in the file "dsragent.cc" that is concerned
> with maintaining flow-tables. i would be grateful if sumone explains me
> what flow tables are all about.
>
> regards,
> manjusha
>

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