Hi all
I am trying to test the feature
My topology consists of three routers (one of them is CSR1000v) and the other
two are 3725 all simulated via GNS3
R1(CSR) is connected to R2 and R3 , there is a direct connection as well
between R2 and R3
All routers are configured with a loopback interface with the form of
x.x.x.x/32 where x is the router number
Now , R1 is learning R2 loopback interface normally and logically through the
direct link with R2
When I shutdown the interface with R2 (as I do not want to turn off the remote
interface on R2 as I cannot turn on BFD on GNS3) and I have checked the route
to 2.2.2.2 , it took about 5-6 seconds to install the same route via the backup
path (via R3)
Now , I have configured the feature on the CSR
CSR(config)#router ospf 1
CSR(config-router)#fast-reroute per-prefix enable area 0 prefix-priority high
And I repeat the same test it took about 4 seconds to learn the prefix via the
backup path
Is this the expected behavior or it should be less than that?
Thanks in advance
BR,
Mohammad
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