Ip Rip Poison-Reverse - Lucent Technologies Cajun P550 Cli Reference Manual

IP-RIP
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Enable split-horizon with poison reverse on an interface. The no form of this command
disables the poison-reverse mechanism. The default state is disabled.
The split-horizon technique prevents information about routes from exiting the router
interface through which the information was received. This prevents routing loops.
Poison reverse updates explicitly indicate that a network or subnet is unreachable rather
than implying they are not reachable. Poison reverse updates are sent to defeat large
routing loops.

 
 
Cajun(config-if:serial0)# ip rip poison-reverse
2-6
To Enable:

ip rip poison-reverse

To Disable:
[no] ip rip poison-reverse
Cajun P550/P220 Command Line Interface Reference Guide