3.12.14. spanning-tree forward-delay

Syntax

spanning-tree forward-delay seconds no spanning-tree forward-delay

Parameter

seconds STP forward delay time. Its valid range is from 4 to 30 seconds.

Default

The default forward delay time is 15 seconds.

Mode

Global Configuration

Usage

To configure the STP bridge forward delay time, which is the amount of time that a port remains in the Listening and Learning states before it enters the Forwarding state, use the command spanning-tree forward-time in the Global Configuration mode. To restore it to the default configuration, use the no form of the command.

When the forward delay time is configured, the following relationship shold be maintained: 2 * (forward-time - 1) >= Max-Age

Example

The following example configures STP forward delay time to 25.

Switch(config)# spanning-tree forward-time 25