Spanning Tree Commands 4

Example

Console(config-mstp)#mst 1 vlan 2-5

Console(config-mstp)#

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

Console(config-mstp)#mst 1 priority 4096

Console(config-mstp)#

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

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Accton Technology ES3528M-SFP manual Mst priority, Name, Mst instanceid priority priority no mst instanceid priority