(Optional) Configuring the Hello Time The hello time is the time interval between configuration messages that are generated and sent by the root switch. To configure the hello time, perform this procedure: Procedure (Optional) Configuring the Forwarding-Delay Time for a VLAN To configure the forwarding-delay time for a VLAN, perform this procedure: Procedure Configuring Spanning Tree Protocol (Optional) Configuring the Hello Time Command or Action Purpose Device(config-if)# end Command or Action Purpose Step 1 enable Example: Device> enable Enables privileged EXEC mode. Enter your password if prompted. Step 2 spanning-tree vlan vlan-id hello-time seconds Example:
Device(config)# spanning-tree vlan 20-24 hello-time 3 Configures the hello time of a VLAN. The hello time is the time interval between configuration messages that are generated and sent by the root switch. These messages mean that the switch is alive. • For vlan-id, you can specify a single VLAN identified by VLAN ID number, a range of VLANs separated by a hyphen, or a series of VLANs separated by a comma. The range is 1 to 4094. • For seconds, the range is 1 to 10; the default is 2. Step 3 end Example: Device(config-if)# end Returns to privileged EXEC mode. Command or Action Purpose Step 1 enable Example: Device> enable Enables privileged EXEC mode. Enter your password if prompted.
Configuring Spanning Tree Protocol 19