[Babel-users] CRXN/DN42: interconnecting overlay networks with Babel and BGP

[Maria Matejka]

Hello! 


>> So if you're not careful you could end up in a situation where Babel
>> maintains a loop-free forwarding graph, BGP maintains a loop-free
>> forwarding graph, but there exists a loop that goes Babel -> BGP -> Babel.
>> 
>We almost experienced such a situation as well. Bird
>always prefers Babel over BGP, unfortunately.

In BIRD, you can set the preference per route, this way you may prefer any route over any else.

Maria