DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
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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 this window, click
L2 Features > Spanning Tree > MSTP Port Information
as shown below:
Figure 4- 33 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. The range is from 0 to 15. 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.
value 1-200000000
– Selecting this parameter with a value in the range of
1
to
200000000
will
set the quickest route when a loop occurs. A lower Internal cost represents a quicker
transmission.
Priority
Enter 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. The
default is 128
Click
Apply
to implement changes made.
