xStack
®
DES-3500 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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Type
This field allows the user to choose a desired method for altering the MSTI settings. The user
has four choices.
• Add - Select this parameter to add VIDs to the MSTI ID, in conjunction with the VID List
parameter.
• Remove - Select this parameter to remove VIDs from the MSTI ID, in conjunction with
the VID List parameter.
• Delete - Select this parameter to delete this MSTI ID.
• Set Priority Only - Select this parameter to set the priority for the MSTI ID. This field is
used in conjunction with the Priority field.
VID List (1-4094)
This field is used to specify the VID range from configured VLANs set on the Switch that the user
wishes to add to this MSTI ID. Supported VIDs on the Switch range from ID number 1 to 4094.
This parameter can only be utilized if the Type chosen is Add or Remove.
Priority (0-61440)
Select a value between 0 and 61440 to specify the priority for a specified MSTI for forwarding
packets. The lower the value, the higher the priority. This entry must be divisible by 4094 and
can only be utilized if the Type chosen is Set Priority Only.
Click Apply to implement changes made.
MSTI Settings
This window displays the current MSTI configuration settings 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 Configuration > Spanning Tree > MSTI Settings:
Figure 6- 30. MSTI Port Information window
To view the MSTI settings for a particular port, select the Port number, located in the top left hand corner of the screen and click
Apply. To modify the settings for a particular MSTI Instance, click on its hyperlinked MSTI ID, which will reveal the following
window.
Figure 6- 31. MSTI Settings window
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