mst priority
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mst priority
This command configures the priority of a spanning tree instance. Use the no form
to restore the default.
Syntax
mst instance_id priority priority
no mst instance_id priority
• instance_id - Instance identifier of the spanning tree. (Range: 0-4094)
• priority - Priority of the a spanning tree instance.
(Range: 0-61440 in steps of 4096; Options: 0, 4096, 8192, 12288, 16384,
20480, 24576, 28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344,
61440)
Default Setting
32768
Command Mode
MST Configuration
Command Usage
• MST priority is used in selecting the root bridge and alternate bridge of the
specified instance. The device with the highest priority (i.e., lowest numerical
value) becomes the MSTI root device. However, if all devices have the same
priority, the device with the lowest MAC address will then become the root
device.
• You can set this switch to act as the MSTI root device by specifying a priority
of 0, or as the MSTI alternate device by specifying a priority of 16384.
Example
name
This command configures the name for the multiple spanning tree region in which
this switch is located. Use the no form to clear the name.
Syntax
name name
name - Name of the spanning tree.
Default Setting
Switch’s MAC address
Command Mode
MST Configuration
Console(config-mstp)#mst 1 priority 4096
Console(config-mstp)#
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