User Manual

DIS-200G Series Gigabit Ethernet Switch CLI Reference Guide
189
34-3 spanning-tree priority
This command is used to configure the bridge priority. It is only used for RSTP and STP versions. Use the no
form of this command to restore to the default setting.
spanning-tree priority PRIORITY
no spanning-tree priority
Parameters
PRIORITY
Specifies that the bridge priority and bridge MAC address together
forms the Spanning-Tree Bridge-ID, which is an important factor in
the Spanning-Tree topology. The range is from 0 to 61440.
Default
By default, this value is 32768.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 15.
Usage Guideline
The bridge priority value is one of the two parameters used to select the Root Bridge. The other parameter is
system’s MAC address. The bridge’s priority value must be divisible by 4096 and a smaller number represents
a better priority.
This configuration will take effect on STP version and RSTP mode. In the MSTP mode, use the command
spanning-tree mst priority to configure the priority for an MSTP instance.
Example
This example shows how to configure the STP bridge priority value to 4096.
Switch# configure terminal
Switch(config)# spanning-tree priority 4096
Switch(config)#