Stp Instance Settings; Mstp Port Information - D-Link xStack Reference Manual

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xStack DGS-3200 Series Layer 2 Managed Gigabit Ethernet Switch Web UI Reference Guide

STP Instance Settings

This window displays MSTIs currently set on the Switch and allows users to change the Priority of the MSTIs.
To view the following window, click L2 Features > Spanning Tree > STP Instance Settings:
The window above contains the following information:
Parameter Description
MSTI ID Enter the MSTI ID in this field. An entry of 0 denotes the CIST (default MSTI).
Priority Enter the priority in this field. The available range of values is from 0 to 61440.
Click Apply to implement the new priority setting. To modify an entry on the table at the top of the window, click the
corresponding Edit button. To view more information about an entry on the table at the top of the window, click the
corresponding View button.

MSTP Port Information

This window displays the current MSTI configuration information and can be used to update the port configuration for an MSTI
ID. If a loop occurs, the MSTP function will use the port priority to select an interface to put into the forwarding state. Set a higher
priority value for interfaces to be selected for forwarding first. In instances where the priority value is identical, the MSTP
function will implement the lowest MAC address into the forwarding state and other interfaces will be blocked. Remember that
lower priority values mean higher priorities for forwarding packets.
To view the following window, click L2 Features > Spanning Tree > MSTP Port Information:
The following parameters can be configured:
Parameter
Port
Internal Path Cost
(1-200000000)
Figure 3 - 65. STP Instance Settings window
Figure 3 - 66. MSTP Port Information window
Description
Use the drop-down menu to select a port to be displayed.
This parameter is set to represent the relative cost of forwarding packets to specified ports
when an interface is selected within an STP instance. Selecting this parameter with a value
in the range of 1 to 200000000 will set the quickest route when a loop occurs. A lower
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