Reference Guide

Default 15 seconds
Command Mode CONFIGURATION
Usage
Information
The no version of this command resets the value to the default.
Example
OS10(config)# spanning-tree mst forward-time 16
Supported
Releases
10.2.0E or later
spanning-tree mst hello-time
Sets the time interval between generation and transmission of MSTP BPDUs.
Syntax
spanning-tree mst hello-time seconds
Parameters seconds — Enter a hello-time interval value in seconds (1 to 10).
Default 2 seconds
Command Mode CONFIGURATION
Usage
Information
Dell EMC recommends increasing the hello-time for large configurations — especially configurations with
multiple ports. The no version of this command resets the value to the default.
Example
OS10(config)# spanning-tree mst hello-time 5
Supported
Releases
10.2.0E or later
spanning-tree mst mac-flush-threshold
Sets the threshold value for flushing the MAC addresses.
Syntax
spanning-tree mst instance-number mac-flush-threshold threshold-value
Parameters
● instance-number—Enter the instance number, ranging from 0 to 63.
● threshold-value—Enter the threshold value for the number of flushes, ranging from 0 to 65535.
The default value is 5.
Default Not configured
Command Mode CONFIGURATION
Usage
Information
The no version of this command removes the threshold value.
Example
OS10(config)# spanning-tree mst 10 mac-flush-threshold 255
Supported
Releases
10.4.0E(R1) or later
spanning-tree mst max-age
Configures the time period the bridge maintains configuration information before refreshing the information by recomputing the
MST topology.
Syntax
max-age seconds
Parameters seconds — Enter a maximum age value in seconds (6 to 40).
Default 20 seconds
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