Not sure what you mean by CDR, however as far as BGP is concerned, you have two things when it comes to BGP, one is prefixes learned via BGP ( either iBGP or eBGP) and the communities attached to those prefixes.
So, I assume you want to match particular attribute. You can do that with the help of combination of ACL or AS Path access list and Policy-maps.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...