No you cant have both routers Active, you can make router A active for one subnet (group) and router B active with different subnet by setting the Priority accordingly. If you want load-balancing you need to consider GLBP (gateway load-balancing protocol)
Under what kind of case scenario, we should use it on interface vlan rather than interface gigabitethernet?
On a L3 switch. Generally speaking nowadays you will see HSRP used on L3 switches more then routers because L3 switches are usually responsible for inter-vlan routing. So a common setup is a pair of 3560, 4500, 6500 switches connected via a trunk with multiple L3 vlan interfaces running HSRP between them.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...