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XS712T Smart Switch
3. Select the interfaces for which you want to configure the CoS settings:
• To configure MST settings for a Link Aggregation Group (LAG), click LAGS.
• To configure MST settings for both physical ports and LAGs, click ALL.
4. Select the check box next to the port or LAG to configure.
You can select multiple ports and LAGs to apply the same setting to the selected
interfaces. Select the check box in the heading row to apply the same settings to all
interfaces.
5. Configure the MST values for the selected port(s) or LAG(s):
• Port Priority. The priority for a particular port within the selected MST instance. The
port priority is set in multiples of 16. If you specify a value that is not a multiple of 16,
the priority is set to the priority is automatically set to the next lowest priority that is a
multiple of 16. For example, if you set a value between 0 and 15, the priority is set to
0. If you specify a number between 16 and 31, the priority is set to 16. It takes a value
in the range of 0–240.
• Port Path Cost. Set the Path Cost to a new value for the specified port in the selected
MST instance. It takes a value in the range of 0–200000000.
6. Click Apply.
7. View the MST port status information.
The following table describes the read-only MST port configuration information displayed
on the Spanning Tree CST Configuration screen
Field Description
Auto-calculated Port Path
Cost
Displays whether the path cost is automatically calculated
(Enabled) or not (Disabled). Path cost is calculated based on the
link speed of the port if the configured value for Port Path Cost is
zero.
Port ID The port identifier for the specified port within the selected MST
instance. It is made up from the port priority and the interface
number of the port.
Port Up Time Since Counters
Last Cleared
Time since the counters were last cleared, displayed in Days,
Hours, Minutes, and Seconds.
Port Mode Spanning Tree Protocol Administrative Mode associated with the
port or port channel. Possible values are Enable or Disable.