Configuring The Number Of Spanning Tree Groups - Lenovo RackSwitch G8264 Command Reference Manual

Configuring the Number of Spanning Tree Groups

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The maximum number of Spanning Tree Groups (STGs) available on the switch
can be configured to be either 128 or 256.
Table 399.
Configuring the Maximum Number of STGs Command Options
Command Syntax and Usage
boot spanning­tree max­instances {128|256}
Configures the maximum number of Spanning Tree Groups (STGs) that can be
used on the switch.
The default value is 128.
Note: The switch needs to be reloaded for the configuration to take effect.
Command mode: Global configuration
no boot spanning­tree max­instances
Reset the maximum number of STGs available on the switch to the default
value of 128.
Note: The switch needs to be reloaded for the configuration to take effect.
Command mode: Global configuration
show boot spanning­tree
Displays the maximum number of currently available STGs on the switch and
the maximum number of available STGs after the switch reloads.
Command mode: All
The following command displays the current maximum limit of STGs on the
switch and the maximum limit configured after the switch reloads:
show boot spanning­tree
Command mode: All
Bootup Max PVRST Instances: 128
Saved Max PVRST Instances: 256
NOTE: A Reboot is required for the new settings to take effect.
When switching from 256 to 128 STP instances, please remove any
extra configuration for STP instance 128 and above, then save
the configuration; otherwise, all STP instance configuration
may be lost after reload.
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Chapter 6: Boot Options