Dell PowerEdge M805 - Manual (Page 480)

472 Spanning Tree Commands
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Example
The following example configures the port priority of port 1/g1 to 144.
console(config)#interface ethernet 1/g1
console(config-if-1/g1)#spanning-tree mst 1 port-priority 144
spanning-tree mst priority
Use the spanning-tree mst priority command in Global Configuration mode to set the switch
priority for the specified spanning-tree instance. To return to the default setting, use the no form of
this command.
Syntax
spanning-tree mst instance-id priority priority
no spanning-tree mst instance-id priority
• instance-id—ID of the spanning-tree instance. (Range: 1-16)
• priority—Sets the switch priority for the specified spanning-tree instance. This setting
affects the likelihood that the switch is selected as the root switch. A lower value increases
the probability that the switch is selected as the root switch. (Range: 0-61440)
Default Configuration
The default bridge priority for IEEE STP is 32768.
Command Mode
Global Configuration mode
User Guidelines
The priority value must be a multiple of 4096.
The switch with the lowest priority is selected as the root of the spanning tree.
Example
The following example configures the spanning tree priority of instance 1 to 4096.
console(config)#spanning-tree mst 1 priority 4096
spanning-tree portfast
Use the spanning-tree portfast command in Interface Configuration mode to enable PortFast
mode. In PortFast mode, the interface is immediately put into the forwarding state upon linkup,
without waiting for the timer to expire. To disable PortFast mode, use the no form of this
command.