Owner's Manual

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Spanning Tree -> MSTP Interface Settings
This screen manages MSTP Interface Settings. Use it to assign MSTP settings to specific
interfaces.
Figure 13-28. MSTP Interface Settings
The MSTP Interface Setting page contains the following parameters:
-
Instance ID —Lists the MSTP instances configured on the device. Possible field range is 0-15.
-
Interface —Assigns either ports or LAGs to the selected MSTP instance.
-
Port State — Indicates whether the port is enabled or disabled in the specific instance.
-
Ty p e —Indicates whether MSTP treats the port as a point-to-point port or a port connected to a
hub and whether the port is internal to the MST region or a boundary port. If the port is a
boundary port, it also indicates whether the device on the other side of the link is working in
RSTP or STP mode
-
Role —Indicates the port role assigned by the STP algorithm in order to provide to STP paths.
The possible field values are:
Root – Provides the lowest cost path to forward packets to root device.
Designated – Indicates the port or LAG via which the designated device is attached to the
LAN.
Alternate – Provides an alternate path to the root device from the interface.