Question about RIP
Greenmet29
Member Posts: 240
in CCNA & CCENT
If R1 has a RIP route to 172.30.22.0/24 via R2 and that link fails, R2 sends a poisoned router of metric 16 to R1. When R1 gets that route, it's supposed to list "possibly down" instead of a metric until it is removed from the routing table.
I labbed this just now and I couldn't get back to R1 fast enough to see "possibly down". Anyone know how long it takes to remove it from the routing table?
I labbed this just now and I couldn't get back to R1 fast enough to see "possibly down". Anyone know how long it takes to remove it from the routing table?
Comments
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Forsaken_GA
Member Posts: 4,024
The behavior unfortunately changes between IOS code. Some versions will keep the route in the table until the timers expire, others will remove it as soon as they receive the infinite metric for the route -
Greenmet29
Member Posts: 240
Did that and I saw the metric 16, but couldn't get it to show possibly down. I have a feeling that it has to do with split horizon and poison reverse. I may try to disable these features and see if I can see it, but i'm pretty comfortable with it already.
