Pro-active Route Maintenance in DSR
l D calculates predicted link breakage time upon receiving
packet from J
l Send Prediction Route Error message to source node if link
in critical state
u Source node can rebuild the route
l Maintain source-previous hop node table to limit number
of Prediction Route Error messages (up to 3)
l Block Route Request from bad link
u Bad link will not appear in new route
l Timeout mechanism
u Nodes may move closer later