Mst Configuration Identification - D-Link xStack DGS-3620 Series Reference Manual

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xStack DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide
Port STP
Forward BPDU
Edge
Restricted Role
Click the Apply button to accept the changes made.

MST Configuration Identification

This window allows the user to configure a MSTI instance on the Switch. These settings will uniquely identify a
multiple spanning tree instance set on the Switch. The Switch initially possesses one CIST, or Common Internal
Spanning Tree, of which the user may modify the parameters for but cannot change the MSTI ID for, and cannot be
deleted.
To view the following window, click L2 Features > Spanning Tree > MST Configuration Identification, as shown
below:
The fields that can be configured are described below:
Parameter
Configuration Name
Revision Level
(0-65535)
MSTI ID (1-64)
Type
This drop-down menu allows you to enable or disable STP for the selected group of
ports. The default is Enabled.
Use the drop-down menu to enable or disable the flooding of BPDU packets when
STP is disabled.
Choosing the True parameter designates the port as an edge port. Edge ports cannot
create loops, however an edge port can lose edge port status if a topology change
creates a potential for a loop. An edge port normally should not receive BPDU
packets. If a BPDU packet is received, it automatically loses edge port status.
Choosing the False parameter indicates that the port does not have edge port status.
Alternatively, the Auto option is available.
Use the drop-down menu to toggle Restricted Role between True and False. If set to
True, the port will never be selected to be the Root port. The default is False.
Figure 5-46 MST Configuration Identification window
Description
This name uniquely identifies the MSTI (Multiple Spanning Tree Instance). If a
Configuration Name is not set, this field will show the MAC address to the device
running MSTP.
This value, along with the Configuration Name, identifies the MSTP region
configured on the Switch.
Enter a number between 1 and 64 to set a new MSTI on the Switch.
This field allows the user to choose a desired method for altering the MSTI settings.
The user has two choices:
Add VID - Select this parameter to add VIDs to the MSTI ID, in conjunction with the
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