Is it okay for the Standby L3 switch to have floating IP addresses so that you know the way to the Firewall and ping is returned?
Please let me organize it again.
① Delete VLAN of old L3SW (Clear with Standby machine → Clear with Active machine)
② Clear MAC address table with FW
③ Put VLAN in new L3SW (Add to Active machine → Add to Standby machine)
※ L3 switch uses vPC function on Nexus (maybe I forgot to say something quite important)
Describing in detail the ping of this situation.
① When VLAN is deleted on Standby machine → ping stop (Time out)
② After that, "From [Firewall] Destination Host Unreachable" is repeated several times from the firewall,
then "[BIG-IP _ external_SelfIP] destination host unreachable" continues.
(In some cases, after returning from BIG-IP, several pings are returned from the firewall.)
③ After that, the ping returns normally from the Firewall.
I am concerned about the behavior of ping after ②.
I am sorry for lack of information.
Does the first explanation and situation change?