Hello,
I don't quite see the point of poisoned reverse.
Scenario (with RIP):
- 2 routers with a hub (and me tracing) between them.
- One router is turned off.
- After 3 mins, the remaining router realizes its partner is dead, and then sends the poisoned reverse (to the dead router), informing it that is is no longer alive (hopcount=16).
What I don't understand is, if someone is dead, what is the point of informing them of this fact (rip does this twice (60 secs apart), and then clears the entry from its routing table; it also sends a poisoned route to its other mates, and that makes perfect sense).
Richard.