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Spanning-Tree Commands
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CLI\files\Spanning-Tree.fm
D E L L C O N F ID E N T IA L – P R E L IM I N A RY 5 / 1 5 /1 2 - F O R P R O O F O N LY
Syntax
spanning-tree mode
{stp | rstp | mst}
no spanning-tree mode
Parameters
•
stp
—Specifies that the Spanning Tree Protocol (STP) is enabled.
•
rstp
—Specifies that the Rapid Spanning Tree Protocol (RSTP) is enabled.
•
mst
—Specifies that the Multiple Spanning Tree Protocol (MSTP) is
enabled.
Default Configuration
The default is RSTP.
Command Mode
Global Configuration mode
User Guidelines
In RSTP mode, the device uses STP when the neighbor device uses STP.
In MSTP mode, the device uses RSTP when the neighbor device uses RSTP,
and uses STP when the neighbor device uses STP.
Example
The following example configures the spanning-tree protocol as RSTP.
console(config)#
spanning-tree mode mstp
spanning-tree forward-time
Use the
spanning-tree forward-time
Global Configuration mode command
to configure the spanning-tree bridge forward time, which is the amount of
time a port remains in the listening and learning states before entering the
forwarding state. Use the
no
form of this command to restore the default
configuration.
