BGP filtering question

[Alex_Samad]

Hi

Quick question, pretty sure I know the answer.

But I want to redistribute some of the OSPF routes I have into BGP.

So I create a redist profile, say the source is OSPF

then I can use the BGP export filtering to stop what I don't want out.

So lets say I have in my ospf table

10.10.10.0/24

10.10.20.0/24

10.10.30.0/24

 1.1.1.50/32

 1.1.1.51/32

 1.1.1.55/32

 1.1.1.70/32

and my export has 

allow 1.1.1.0/24 not exact

then I would only advertise 

 1.1.1.50/32

 1.1.1.51/32

 1.1.1.55/32

 1.1.1.70/32

Thanks

Alex

[9t89m8fu · Accepted solution]

Correct, but bear in mind BGP export filters are per-peer or peer group. What controls what passes from the OSPF RIB to the BGP RIB (LOC-RIB) is your redistribution profile.