C
HAPTER
35
| Spanning Tree Commands
– 813 –
spanning-tree
priority
This command configures the spanning tree priority globally for this switch.
Use the no form to restore the default.
SYNTAX
spanning-tree priority priority
no spanning-tree priority
priority - Priority of the bridge. (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
Global Configuration
COMMAND USAGE
Bridge priority is used in selecting the root device, root port, and
designated port. The device with the highest priority (i.e., lower numeric
value) becomes the STA root device. However, if all devices have the same
priority, the device with the lowest MAC address will then become the root
device.
EXAMPLE
Console(config)#spanning-tree priority 40000
Console(config)#
spanning-tree mst
configuration
This command changes to Multiple Spanning Tree (MST) configuration
mode.
DEFAULT SETTING
No VLANs are mapped to any MST instance.
The region name is set the switch’s MAC address.
COMMAND MODE
Global Configuration
EXAMPLE
Console(config)#spanning-tree mst configuration
Console(config-mstp)#
RELATED COMMANDS
mst vlan (816)
mst priority (815)
name (816)
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