Allied Telesis AT-S95 CLI - Manual (Page 230)

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Allied Telesis
Command Line Interface User’s Guide
Default Configuration
The default bridge priority for IEEE Spanning Tree Protocol (STP) is 32768.
Command Mode
Global Configuration mode
User Guidelines
The device 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.
spanning-tree mst max-hops
The spanning-tree mst priority Global Configuration mode command configures the number of hops in an MST
region before the BDPU is discarded and the port information is aged out. Use the no form of this command to
return to the default configuration.
Syntax
spanning-tree mst max-hops hop-count
no spanning-tree mst max-hops
Parameters
•
hop-count—Number of hops in an MST region before the BDPU is discarded .(Range: 1-40)
Default Configuration
The default number of hops is 20.
Command Mode
Global Configuration mode
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the maximum number of hops that a packet travels in an MST region before it is
discarded to 10.
spanning-tree mst port-priority
The spanning-tree mst port-priority Interface Configuration mode command configures port priority for the
specified MST instance. Use the no form of this command to return to the default configuration.
Console (config) # spanning-tree mst 1 priority 4096
Console (config) # spanning-tree mst max-hops 10