Mstp Interface Settings - Planet Networking & Communication WSGW-24020 User Manual

4.9.7 MSTP Interface Settings

Network Administrators can assign MSTP Interface settings using the MSTP Interface Settings screen (see figure 4-55).
The MSTP Interface Settings screen contains the following fields:
Instance ID
Interface
Port State
Type
Role
Interface Priority
Figure 4-55 MSTP Interfance Settings screen
Lists the MSTP instances configured on the device. Possible field range is 0-15.
Indicates the interface for which the MSTP settings are displayed. The possible field
values are two types:
• Port - Specifies the port for which the MSTP settings are displayed.
•
LAG - Specifies the LAG for which the MSTP settings are displayed.
where indicates whether the port is enabled for the specific instance.
indicates if the port is a point-to-point port, or a port connected to a hub. The possible
field values are:
• Boundary Port, attaches MST bridges to LAN in an outlying region. 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.
• Master Port, where provides connectivity from a MSTP region to the outlying
CIST root.
• Internal, indicates the port is an internal port.
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 root interface.
• Backup, provides a backup path to the designated port path toward the
Spanning Tree leaves. Backup ports occur only when two ports are connected in
a loop by a point-to-point link. Backup ports also occur when a LAN has two or
more connections connected to a shared segment.
• Disabled, which indicates the port is not participating in the Spanning Tree.
Defines the interface priority for specified instance.
The default value is 128.
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User's Manual of WGSW-24020/WGSW-48040