Specifications

spanning-tree single
180
spanning-tree single
Starts calculation of the topology for Single Spanning Tree. If the Spanning Tree operating
mode is PVST+, VLAN 1 is treated as Single Spanning Tree after this command is
executed.
Syntax
To set information:
spanning-tree single
To delete information:
no spanning-tree single
Input mode
(config)
Parameters
None
Default behavior
None
Impact on communication
None
When the change is applied
The change is applied immediately after setting values are changed.
Notes
1. If VLAN 1 was subject to PVST+ before this command was executed, executing this
command stops PVST+ for VLAN 1. Removing Single Spanning Tree causes
PVST+ to be applied to VLAN 1. If the operating mode is Multiple Spanning Tree,
Single Spanning Tree does not operate.
Related commands
spanning-tree mode