DGS-6604 m spanning-tree mode
CLI Reference Guide
866
spanning-tree mode
Use this command to decide the STP mode. To return to the default settings, use
the no form of this command.
spanning-tree mode {mstp | rstp |stp}
no spanning-tree mode
Default mstp
Command Mode Global configuration
Usage Guideline If the spanning-tree mode is configured as STP or RSTP, all currently running
MSTP instances will be cancelled automatically.
If the newly configured spanning-tree mode is changed from the previous one,
the spanning-tree state machine will restart again, therefore all of the stable
spanning-tree port states will transit into discarding states.
Caution: Be careful when using the spanning-tree mode command to switch
between STP, RSTP, and MSTP modes. When entering the command, all
spanning-tree instances are stopped for the previous mode and are restarted in
the new mode. Using this command may cause disruption of the user traffic.
Example This example shows how to configure the running version of STP module to
RSTP.
Verify the settings by entering the show spanning-tree command.
Syntax Description
mstp Multiple Spanning Tree Protocol (MSTP).
rstp Rapid Spanning Tree Protocol (RSTP).
stp Spanning Tree Protocol ( IEEE 802.1D-Compatible)
Switch(config)# spanning-tree mode rstp
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