What command is used to set the HSRP priority on an interface?

The command used to set the HSRP (Hot Standby Router Protocol) priority on an interface is "standby [group-number] priority [value]." This command allows you to define the priority of a router within a specific HSRP group, which is crucial for determining which router will become the active router when the active router fails.

In HSRP, the router with the highest priority value becomes the active router, while routers with lower priority values will be in a standby state. Therefore, correctly configuring the priority value can enhance network reliability by ensuring that the most suitable router takes over if the primary device becomes unavailable.

It's important to follow the proper syntax when issuing this command. The first part, "standby," signifies that you are entering an HSRP configuration mode, followed by the group number that identifies the HSRP group you are configuring and then the "priority" keyword, which lets the device know you are setting a priority value.

By understanding this command, network professionals can effectively manage router failover and ensure high availability in their networks.