Is BFD (Bidirectional Forwarding Detection) supported in any of the ASA Versions ?
can u please let me know how it is accomplished via ACL.Can you please look at the below URL and confirm whether this feature is really supported on asa ?
Just to clarify. Do you mean can the ASA participate in BFD ie. does it support it ? In which case as far as i know no it doesn't.
If you mean can BFD be used throgh a firewall then yes you should be able to do this. You would need to allow the BFD ports -
bfd-control Port 3784 TCP BFD Control Protocol
bfd-control Port 3784 UDP BFD Control Protocol
bfd-echo Port 3785 TCP BFD Echo Protocol
bfd-echo Port 3785 UDP BFD Echo Protocol