reorder BGP plink preference

[Eugene M. Zheganin]

Hello,

I have a bird router serving multiple BGP sessions with my AS uplinks, 
and now I need to create a more complicated thing, - I have several FIBs 
and I need to reorder the BGP link preference for a given FIB. Say, I 
have 3 uplinks, A/B/C, A is the most preferable one for default FIB, but 
I need B to be the most preferable one for FIB 1. I have some basic 
experience with multiple routing tables in bird, I'm successfully using 
two at the moment, but I just have no idea on how to do this. I mean I 
know how to make the B upstream the only channel for FIB 1 (without 
redundancy), but I have no idea on how to reorder the preference in 
order to keep the redundancy. Is there such a way ?


Thanks.

Eugene.