(Optional) Configuring the Hello Time The hello time is the time interval between configuration messages that are generated and sent by the root device. To configure the hello time, perform this procedure: Before you begin An MST must be specified and enabled on the device. Procedure Configuring the Forwarding-Delay Time To configure the forwarding-delay time, perform this procedure: Before you begin An MST must be specified and enabled on the device. Procedure Configuring Multiple Spanning-Tree Protocol (Optional) Configuring the Hello Time Command or Action Purpose Step 1 enable Example: Device> enable Enables privileged EXEC mode. Enter your password if prompted.
Step 2 configure terminal Example: Device# configure terminal Enters global configuration mode. Step 3 spanning-tree mst hello-time seconds Example: Device(config)# spanning-tree mst hello-time 4 Configures the hello time for all MST instances. The hello time is the time interval between configuration messages that are generated and sent by the root device. These messages indicate that the device is alive. For seconds, the range is 1 to 10; the default is 3. Step 4 end Example: Device(config)# end Returns to privileged EXEC mode. Command or Action Purpose Step 1 enable Enables privileged EXEC mode. Configuring Multiple Spanning-Tree Protocol 23