I am planning to configure HSRP in 3560 switch.
1. Whether the configuration will also be replicated?
2. Should i connect a dedicated cable between the switches for hello messages?
Can anybody throw light on this
#1 As far as I know, you'll need to manually configure HSRP on other gateway devices.
#2 No, but since the purpose of HSRP is to migrate gateway if the active gateway fails, you often want a L2 loop between HSRP gateways and their gateways hosts (with loop broken by spanning tree).