Disabling Spanning Tree; Router(Config)# End; Exits Configuration Mode; Router# Show Spanning-Tree Vlan 200 - Cisco NM-8B-U - HW ROUTERS L-M User Manual

Configuration Tasks
Beginning in privileged EXEC mode, follow these steps to enable BackboneFast:
Command
Step 1
configure terminal
Step 2
spanning-tree backbonefast
Step 3 end
Step 4
show spanning-tree vlan vlan-id
Step 5
copy running-config startup-config
To disable the BackboneFast feature, use the no spanning-tree backbonefast global configuration
command.

Disabling Spanning Tree

To disable spanning tree on a per-VLAN basis, use the following commands in global configuration
mode:
Command
Step 1
Router(config)# no spanning-tree vlan vlan-id
Step 2

Router(config)# end

Verifying that Spanning Tree is Disabled
Use the show spanning-tree vlan command to verify the that the spanning tree is disabled:
Step 1

Router# show spanning-tree vlan 200

<...output truncated...>
Spanning tree instance for VLAN 200 does not exist.
Router#
Configuring MAC Table Manipulation — Port Security
Port security is implemented by providing the user with the option to make a port secure by allowing only
well-known MAC addresses to send in data traffic.
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Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
72
16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Enabling Known MAC Address Traffic, page 73
Creating a Static or Dynamic Entry in the MAC Address Table, page 73
Configuring Aging Timer-timer, page 74
Purpose
Enters global configuration mode.
Enables BackboneFast on the switch.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.
Purpose
Disables spanning tree on a per-VLAN basis.

Exits configuration mode.