Instant EtherFast® Series
•Root Cost - The path cost from the root port on this Switch to the root device.
•Root Port - The number of the port on this Switch that is closest to the root. This Switch communicates with the root device through this port. If there is no root port, then this Switch has been accepted as the root device of the Spanning Tree network.
•Configuration Changes - The number of times the Spanning Tree has been reconfigured.
•Topology Up Time - The time since the Spanning Tree was last recon- figured.
Select OK to return to the previous panel.
Spanning Tree Port Information
The STA Port Information screen displays a summary of STA information for the various ports.
•Port (#) - Number of the port.
•Type - Shows port type as:
100TX
EtherFast® Layer 3 Management
• Status - Displays current state of this port within the Spanning Tree:
Disabled | No link has been established on this port. |
| Otherwise, the port has been disabled by the user |
| or has failed diagnostics. |
Blocking | Port received STA configuration messages, but |
| does not forward packets. |
Listening | Port will leave blocking state due to a topology |
| change. It starts transmitting configuration mes- |
| sages, but does not yet forward packets. |
Learning | Port has transmitted configuration messages for an |
| interval set by the Forward Delay parameter with |
| out receiving contradictory information. Port |
| address is cleared, and the port begins learning |
| addresses. |
Forwarding | The port forwards packets, and continues learning |
| addresses. |
•Designated Cost - The cost for a packet to travel from this port to the root in the current Spanning Tree configuration. The slower the media, the higher the cost.
•Designated Bridge (ID) - The priority and MAC address of the device through which this port must communicate to reach the root of the Spanning Tree.
•Designated Port (ID) - The priority and number of the port on the des- ignated bridging device through which this Switch must communicate with the root of the Spanning Tree.
•Root Cost - The path cost from the root port on this Switch to the root device.
Select OK to return to the previous panel.
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