Owner's Manual

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The screen appearance varies, depending on the model of the selected device. The following are
fields that may be on this screen. When they appear, they are all mandatory:
-
Spanning Tree Enabled —Checkbox.
-
Fast Link —Checkbox.
-
Priority —Valid Values: 0-65535. For 53X switches, this is 0-255 in steps of 16.
-
Path Cost —Valid Values: 1-10
-
Current State —A read-only report of the current state.
-
Port Rate —Indicates if Fast Link is enabled or disabled for the port or LAG. If Fast Link is
enabled for a port, the port is automatically placed in the forwarding state. (Does not appear
in all switch’s screens.)
The
Configure button at the bottom of this screen sends the selected configuration to the device.
The
Refresh button queries to update information displayed.
Spanning Tree -> MSTP Settings
This screen manages Multiple Spanning Tree Protocol (MSTP) Settings. The MSTP operation
maps VLANs into STP instances.
MSTP provides a alternative load balancing scenarios. For example, while one STP instance blocks
port A, the same port can be in its Forwarding State in another STP instance. The MSTP Settings
page allows defining up to sixteen MSTP instances for the device.
In addition, packets assigned to various VLANs are transmitted along different paths within
Multiple Spanning Trees Regions (MST regions). Regions are one or more interconnected Multiple
Spanning Tree bridges with identical MSTP configuration. In configuring an MST, the MST region
to which your device belongs is defined. A configuration consists of the name, revision and region
to which your device belongs.