Specifications

spanning-tree mode
164
spanning-tree mode
The following explains settings for the Spanning Tree operating mode. This command is
applied to PVST+ other than Single Spanning Tree, and to Multiple Spanning Tree. If the
spanning-tree vlan mode command is set in a PVST+ operating mode, the settings for
that command are used.
Syntax
To set or change information:
spanning-tree mode { pvst | rapid-pvst | mst }
To delete information:
no spanning-tree mode
Input mode
(config)
Parameters
{ pvst | rapid-pvst | mst }
Sets the protocol to be used. If the protocol is changed during Spanning Tree
operation, the Spanning Tree Protocol is re-initialized. If
pvst is set, PVST+ is
applied to all Spanning Tree Protocols. If
rapid-pvst is set, rapid PVST+ is applied
to all Spanning Tree Protocols. If
mst is set, Multiple Spanning Tree is applied to all
Spanning Tree Protocols. For Single Spanning Tree,
pvst or rapid-pvst must be
set.
1. Default value when this parameter is omitted:
This parameter cannot be omitted.
2. Range of values:
pvst, rapid-pvst, or mst
Default behavior
The configuration is explicitly set to spanning-tree mode pvst.
Impact on communication
Communication stops until recalculation of the topology is complete.
When the change is applied
The change is applied immediately after setting values are changed.
Notes
None
Related commands
spanning-tree link-type