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xStack® DGS-3620 Series Managed Switch Web UI Reference Guide
Restricted TCN
Migrate
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 show
below:
The fields that can be configured are described below:
Parameter
Configuration Name
Revision Level
(0-65535)
MSTI ID (1-64)
Type
P2P value were False. The default setting for this parameter is Auto.
Topology Change Notification is a simple BPDU that a bridge sends out to its root
port to signal a topology change. Restricted TCN can be toggled between True and
False. If set to True, this stops the port from propagating received topology change
notifications and topology changes to other ports. The default is False.
When operating in RSTP mode, selecting Yes forces the port that has been selected
to transmit RSTP BPDUs.
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 4-38 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.
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