Disabling Spanning Tree - Cisco Catalyst 2960 series Configuration Manual

How to Configure Spanning-Tree Features
Command or Action
Step 6
end
Example:
Switch(config-if)# end
Step 7
clear spanning-tree detected-protocols
Example:
Switch# clear spanning-tree
detected-protocols
Related Topics
Spanning-Tree Modes and Protocols, on page 221

Disabling Spanning Tree

Spanning tree is enabled by default on VLAN 1 and on all newly created VLANs up to the spanning-tree
limit. Disable spanning tree only if you are sure there are no loops in the network topology.
When spanning tree is disabled and loops are present in the topology, excessive traffic and indefinite
Caution
packet duplication can drastically reduce network performance.
This procedure is optional.
SUMMARY STEPS
1. enable
2. configure terminal
3. no spanning-tree vlan vlan-id
4. end
DETAILED STEPS
Command or Action
Step 1 enable
Example:
Switch> enable
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
226
Purpose
Returns to privileged EXEC mode.
If any port on the switch is connected to a port on a legacy IEEE 802.1D
switch, this command restarts the protocol migration process on the
entire switch.
This step is optional if the designated switch detects that this switch is
running rapid PVST+.
Purpose
Enables privileged EXEC mode. Enter your password
if prompted.