Table of Contents
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–
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 or when a LAN has two or
more connections connected to a shared segment.
–
Disabled — Indicates the port is not participating in the Spanning Tree.
•
Mode — Indicates the STP mode by which STP is enabled on the device. The possible field values are:
–
Classic STP — Classic STP is enabled on the device. This is the default value.
–
Rapid STP — Rapid STP is enabled on the device.
–
Multiple STP — Multiple STP is enabled on the device.
•
Interface Priority (0-240,in steps of 16) — Defines the interface priority for the specified instance. The
default value is 128.
•
Path Cost (1-200,000,000) — Indicates the port contribution to the Spanning Tree instance. The range
should always be 1-200,000,000.
•
Designated Bridge ID — Displays the ID of the bridge that connects the link or shared LAN to the root.
•
Designated Port ID — Displays the ID of the port on the designated bridge that connects the link or the
shared LAN to the root.
•
Designated Cost — Indicates that the default path cost is assigned according to the method selected on the
Spanning Tree Global Settings page.
•
Forward Transitions — Indicates the number of times the LAG State has changed from a Forwarding state
to a Blocking state.
•
Remain Hops — Indicates the hops remaining to the next destination.
2.
Click
. The MSTP Interface Table opens.
Page 102
Configuring Spanning Tree
Defining Multiple Spanning Tree
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