Thomas Kunz
Systems and Computer Engineering
39
Route Reply in AODV
nAn intermediate node (not the destination) may also send
a Route Reply (RREP)
provided that it knows a more recent path
than the one previously known to sender S
nTo determine whether the path known to an intermediate node is more recent, destination sequence numbers are used
nThe likelihood that an intermediate node will send a
Route Reply when using AODV
not very high
–A new Route
Request by node S for a destination is assigned a higher destination sequence number. An intermediate node
which knows a route, but with
a smaller sequence number, cannot send Route Reply