[j-nsp] RPF-Check

[Brendan Mannella]

Hello Everyone,

I have a question regarding RPF-Check.

I currently have a edge router with two transits, getting full routes
from both. "Asymmetric routing"

We have RPF-Check enabled on both the transit interfaces. We also have
"unicast reverse path feasible-paths" enabled.

I am currently troubleshooting a issue when a customer cannot reach my
network and believe its failing a RPF-Check.

Transit A is advertising the customer /20 to me, and a return path is
in my routing table.
Transit B i am not receiving a route, customers provider has "no
export" on the route.

Customers traffic comes in on transit B and my traffic back to them
takes Transit A, as thats the only route back.

My questions are..

Is there a way to get more detail with regard to the number of packets
being discarded? Maybe even what source address?

Also do you think i am better off running in loose mode instead?


Thanks in advance

Brendan