From: mcaplan.cs@xxxxxxxxxxxxxxx
Date: Tue Apr 17 2001 - 04:33:06 GMT-3
Hi,
I have been trying to see evidence of RIP's split horizon with poison
reverse. I have the following set up
subnet1 subnet2
----- ------
| |
R1 R2
| |
--------------------------------- subnet3
|
Solaris box
Now when I run snoop on the Solaris box (or even debug ip rip from R1 and
R2) I only see evidence of Split horizon. I see R2 advertise subnet 2 out
onto subnet 3, and R1 advertise subnet 1 out onto subnet 3. I thought with
poison reverse, R1 should advertise subnet 2 with a hop count of 16 out on
subnet 3 interface, and R2 should advertise subnet 1 with a hop count of 16
out on the subnet 3 interface. I dont see this poison reverse behavior on
RIP, RIP2 or IGRP ? Can anyone explain. The only time I see any semblance of
poison reverse, is when a router has purged a route, and it advertises it
with a hop count of 16 until the flush timer expires.
Any help is appreciated.
Thanks
Mark
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