D-Link xStack DES-3228PA, Руководство по установке в сети

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DES-3228PA Embedded Web System User Guide
Page 95
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Alternate — Provides an alternate path to the root switch from the root interface.
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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.
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Disabled — The port is not participating in the Spanning Tree.
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Speed — Indicates the speed at which the port is operating.
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Path Cost — Indicates the port contribution to the root path cost. The path cost is adjusted to a higher or
lower value, and is used to forward traffic when a path is re-routed.
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Priority — Priority value of the port. The priority value influences the port choice when a bridge has two ports
connected in a loop. The priority value is between 0 -240. The priority value is determined in increments of 16.
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Designated Bridge ID — Indicates the bridge priority and the MAC Address of the designated bridge.
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Designated Port ID — Indicates the selected port D-Link priority and interface.
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Designated Cost — Indicates the cost of the port participating in the STP topology. Ports with a lower cost
are less likely to be blocked if STP detects loops.
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Forward Transitions — Indicates the number of times the port has changed from Forwarding state to Block-
ing state.
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LAG — Indicates the LAG to which the port belongs.
2. Click . The STP Interface Settings Page opens:
Figure 49: STP Interface Settings Page
3. Select Enable in the STP field.
4. Define the Fast Link , Enable Root Guard , Path Cost , Default Path Cost , and Priority fields.
5. Click . STP is enabled on the interface, and the device is updated.