Configuring Spanning Tree
MSTP Configurations
Configuration Guide
235
Switch(config-if)#spanning-tree hold-count 8
Switch(config-if)#spanning-tree max-hops 25
Switch(config-if)#show spanning-tree bridge
State Mode Priority Hello-Time Fwd-Time Max-Age Hold-Count Max-Hops
------- ------- -------- -------- -------- -------- --------- --------
Enable Mstp 36864 2 12 20 8 25
Switch(config-if)#end
Switch#copy running-config startup-config
3.2.4 Enabling Spanning Tree Globally
Follow these steps to configure the spanning tree mode as MSTP and enable spanning tree
function globally:
Step 1
configure
Enter global configuration mode.
Step 2
spanning-tree mode
mstp
Configure the spanning tree mode as MSTP.
mstp:
Specify the spanning tree mode as MSTP.
Step 3
spanning-tree
Enable spanning tree function globally.
Step 4
show spanning-tree active
(Optional) View the active information of MSTP.
Step 5
end
Return to privileged EXEC mode.
Step 6
copy running-config startup-config
Save the settings in the configuration file.
This example shows how to configure the spanning tree mode as MSTP and enable
spanning tree function globally :
Switch#configure
Switch(config)#spanning-tree mode mstp
Switch(config)#spanning-tree
Switch(config)#show spanning-tree active
Spanning tree is enabled
