Cisco Systems 3750E Configuring the Forwarding-Delay Time, Spanning-tree mst forward-time seconds

Chapter 19 Configuring MSTP

Configuring MSTP Features

Beginning in privileged EXEC mode, follow these steps to configure the hello time for all MST instances. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	spanning-tree mst hello-time seconds	Configure the hello time for all MST instances. The hello time
		is the interval between the generation of configuration
		messages by the root switch. These messages mean that the
		switch is alive.
		For seconds, the range is 1 to 10; the default is 2.
Step 3
	end	Return to privileged EXEC mode.
Step 4
	show spanning-tree mst	Verify your entries.
Step 5
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To return the switch to its default setting, use the no spanning-tree mst hello-timeglobal configuration command.

Configuring the Forwarding-Delay Time

Beginning in privileged EXEC mode, follow these steps to configure the forwarding-delay time for all MST instances. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	spanning-tree mst forward-time seconds	Configure the forward time for all MST instances. The forward
		delay is the number of seconds a port waits before changing from
		its spanning-tree learning and listening states to the forwarding
		state.
		For seconds, the range is 4 to 30; the default is 15.
Step 3
	end	Return to privileged EXEC mode.
Step 4
	show spanning-tree mst	Verify your entries.
Step 5
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To return the switch to its default setting, use the no spanning-tree mst forward-timeglobal configuration command.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02		19-23