[ns] time of RREQ and RREP

[Zaw Tun]

 Roughly, In AODV routing protocol,if a source want to start communicate, it
will check a route cache to determine whether the route already exist or
not. If the route expired or don't exist, then they will initiate a route
discovery process by broadcasting a RREQ. Then the neighbors will forward
the RREQ to another node untill it reach the destination. The destination
then response with RREP and send back to the source. Once the source
received RREP, the communication will start. The algorithm also involves
updating routing table, set timer,accumulating the address of each node
between source and destination, rejecting a loop route and etc.
How can we know the route request time and route reply time?
Can we know the number of neighbors in this protocol?

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