Hi all
I have a requirement.. "any prefix that originated in any of site will not advertise back to the same site via a redundant gateway"
The sites are multihomed same BGP AS across 4 sites .. 2 CEs connected to 2 PEs .. and there is iBGP between the CEs..
The PEs do as-override .. do the PE's need to do SoO as well? Or as-override is enough?
If the PEs didn't do as-override .. CE's will need allowas-in .. correct?
How to check there are no loops i.e CE routes are not advertised back to the other CE in the same site?
What show commands or debugs can I use to check this?
Thank you