07-07-2012 08:46 AM - edited 03-04-2019 04:54 PM
How do i configure a lab to simulate a BGP routing protocol loop?
I want to see the effects on the routing table and then to experiment with different fixes.
Are there any examples around?
07-07-2012 09:43 AM
Alan,
Below post by Petr should cover what you are looking for
http://blog.ine.com/2010/01/30/anomalies-in-bgp-part-i/#more-3488
The above is a typical eg: of what happens if the iBGP peering is done without considering the data plane/forwarding parth.
Though it doesn't quite happen in the real, you can also us "allow-as-in" or the "as-override" feature and you should be able to simulate this (Kinda cheap trick )
Tharak
07-07-2012 10:24 AM
Tharak,
Many thanks, this will take a while to absorb.
I am also looking for an example where a route seems to be poisoned, deleted and then returns on a cyclic 30 second timer.
Alan.
07-07-2012 10:33 AM
Sorry for being very broad but use a lot of summarizations, simulate flaps in short intervals (maybe with EEM scripts)
The idea is to think how the protocol does and fool it
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