Hi,
The question for HSRP Failover.
1. SW_1 reboot
2. FW_2, SW_2 HSRP Active
3. SW_1 interface UP (to FW_1, to SW_2), FW_1 Active time : [ 09:18:39.258 ]
4. ping FW_1 to SW SVI about 12-15 loss
[ FW_1 to SW VIP Ping ]
09:18:53:610 timeout
09:18:54:624 192.168.0.1 response : byte=32 time=2ms TTL=255
## HSRP State ##
# SW_1 #
[09:18:46.512] Init state
[09:18:55.404] Active state
# SW_2 #
[09:18:51.894] Active state
[09:18:52.736] Speak state
The question is why ping loss that occurs.

[ RSTP, HSRP Preempt, timer default (3s 10s) ]