Configuring The Hello Time; Configuring The Forwarding-Delay Time - Cisco ME 3400 Software Configuration Manual

Chapter 15 Configuring MSTP

Configuring the Hello Time

You can configure the interval between the generation of configuration messages by the root switch by
changing the hello time.
Note Exercise care when using this command. For most situations, we recommend that you use the
spanning-tree mst instance-id root primary and the spanning-tree mst instance-id root secondary
global configuration commands to modify the hello time.
Beginning in privileged EXEC mode, follow these steps to configure the hello time for all MST
instances. This procedure is optional.
Command
Step 1
configure terminal
Step 2 spanning-tree mst hello-time seconds
Step 3
end
Step 4 show spanning-tree mst
Step 5 copy running-config startup-config
To return the switch to its default setting, use the no spanning-tree mst hello-time global 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
Step 1
configure terminal
Step 2 spanning-tree mst forward-time seconds
Step 3 end
Step 4 show spanning-tree mst
Step 5 copy running-config startup-config
OL-9639-07
Purpose
Enter global configuration mode.
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.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
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.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
Configuring MSTP Features
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