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DES-3200-10/18/28/28F Layer 2 Ethernet Managed Switch User Manual
MSTP Port Information
This window displays the current MSTP Port 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:
Figure 3 - 46. MSTP Port Information window
The following parameters can be viewed or set:
Parameter Description
Port
Use the drop-down menu to select a port.
Instance ID
Displays the MSTI ID of the instance being configured. An entry of 0 in this field denotes the
CIST (default MSTI).
Internal Path Cost
(1-200000000)
This parameter is set to represent the relative cost of forwarding packets to specified ports
when an interface is selected within a STP instance. A lower Internal cost represents a quicker
transmission.
Priority
Select a value between 0 and 240 to set the priority for the port interface. A higher priority will
designate the interface to forward packets first. A lower number denotes a higher priority.
Click Apply to implement changes made.
Forwarding & Filtering
This folder contains windows for Unicast Forwarding and Multicast Forwarding.
Unicast Forwarding Settings
To view this window, click L2 Features > Forwarding & Filtering > Unicast Forwarding Settings:
Figure 3 - 47. Unicast Forwarding Settings window
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