10-17-2022 03:36 PM
I have an HA pair of FTD 2140 firewalls, running 7.0.1. They are managed by an FMC running 7.0.4. The firewall is running BGP with its upstream and downstream neighbors. I would like to enable BFD between the HA firewall and the upstream and downstream neighbors, to improve fault detection and BGP failover/convergence.
I see where to enable BFD for each BGP neighbor, but there is a note next to the check box that says a FlexConfig is required in order to use BFD. I have searched and have found no information on how to configure a FlexConfig to enable BFD.
Any help is appreciated.
Solved! Go to Solution.
11-16-2022 01:25 PM - edited 11-16-2022 01:26 PM
Here are the configs i applied on the FMC under Objects - Flexconfig object
bfd-template single-hop TEMPLATE1
interval both 300 multiplier 3
echo
interface Port-channel3.858 (Interface facing BGP peer)
bfd template TEMPLATE1
Once done attach them to your firewall under device flexconfig and enable BFD on BGP.
Deploy the configs and all will be fine
10-18-2022 12:17 AM - edited 10-18-2022 12:18 AM
Never used BFD in FTD, not sure below link help you..but check the below bug:
10-18-2022 09:32 AM
It looks like that feature request may actually be what added the checkbox in FMC web GUI, under BGP Neighbor configuration, to enable BFD. But that's where it says that FlexConfig is used to actually configure BFD on the FTD, and then the checkbox is what links BFD to BGP.
So, I still need some help on configuring FlexConfig to make the BFD configuration on the FTD.
11-16-2022 01:25 PM - edited 11-16-2022 01:26 PM
Here are the configs i applied on the FMC under Objects - Flexconfig object
bfd-template single-hop TEMPLATE1
interval both 300 multiplier 3
echo
interface Port-channel3.858 (Interface facing BGP peer)
bfd template TEMPLATE1
Once done attach them to your firewall under device flexconfig and enable BFD on BGP.
Deploy the configs and all will be fine
11-17-2022 02:28 PM
Thank you for that information. I ended up opening a case with Cisco TAC, and they provided the same response that you did. We implemented it and it is working great.
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