A customer has configured eBGP peering using local AS 65000 with two routers from a CX 6300 VSF stack with the following switch ports:
[ports connecting to router - 1 10.10.10.2]

[ports connecting to router - 2 ip 10.10.20.2]

The LAGs are connected to third-party L2 switches, which are used as a transit network for the eBGP routers. To optimize the possible BGP peering issues, the AOS-CX switch is configured with the global settings:

What needs to be done on the AOX-CX switch to enable the bidirectional forwarding with the eBGP peers?
Correct Answer: D
BFD is a fast failure detection protocol. Enabling fall-over bfd under the LAG interface used for BGP peering ensures that BGP will react immediately to a link failure detected by BFD, even if the LAG is still up at the logical level. This prevents blackholing and routing issues.