Spanning Tree Protocol Configuration Guide, Cisco Catalyst IE9300 Rugged Series Switches

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Spanning Tree Protocol Configuration Guide, Cisco Catalyst IE9300 Rugged Series Switches

Configure VLAN hello time

Updated: March 2, 2026

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Learn how to configure the hello time of a VLAN to control the interval between configuration messages generated and sent by the root Switch.

You can configure the hello time of a VLAN to control the time interval between configuration messages generated and sent by the root switch.

This task enables you to adjust how frequently the root switch sends messages to indicate that it is alive.

Before you begin

Perform these steps to configure VLAN hello time.

Procedure

1.

Use the enable command to enter privileged EXEC mode.

Example:

Switch> enable

Enter your password if prompted.
2.

Use the configure terminal command to enter global configuration mode.

Example:

Switch# configure terminal
3.

Use the spanning-tree vlan hello-time command to configure the hello time of a VLAN.

Example:

Switch(config)# spanning-tree vlan 20 hello-time 3

The hello time is the time interval between configuration messages generated and sent by the root switch. These messages indicate that the switch is active.

For vlan-id, you can specify a single VLAN identified by VLAN ID number, a range of VLANs separated by a hyphen, or a list of VLANs separated by commas. The values range from 1 to 4094.

For seconds, the values range from 1 to 10 and the default is 2.
4.

Use the end command to return to privileged EXEC mode.

Example:

Switch(config)# end