D-Link DES-6300 User Manual page 122

Modular L3 Ethernet Switch User's Guide
Select Bridge > Spanning Tree > Spanning Tree Port Table. The Spanning Tree Port Table
opens:
The Spanning Tree Port Table displays the following fields:
Port – Indicates the port number to which the STP applies.
Priority – Indicates the priority value of the port. The Priority value can be used
to influence the choice of port when a bridge has two ports connected in a loop.
PortState – Indicates the current STP state of a port. If enabled Port State
determines what forwarding action is taken on traffic. If the bridge discovers a
malfunctioning port, the port is placed in the Broken State. The possible values
are:
•
traffic while learning MAC addresses.
•
traffic or learn MAC addresses.
•
forward traffic nor can it learn MAC addresses.
•
forward traffic however it can learn new MAC addresses.
•
forward traffic and learn new MAC addresses.
•
forwarding traffic.
Port Enable – Indicates if the STP is enabled on the port. If the port is disabled,
the PortState is forwarding.
Path Cost – The amount this port contributes to the Root Path Cost. The Path
Cost can be adjustable to a higher or lower value, and can be used to forward
traffic towards or away from a path being rerouted.
Designated Root – The Designated Bridge transmits a unique Bridge Identifier as
the root in the CMs.
Designated Cost – The Designated Port path cost of network segments connected
to this port. This value is compared to the Root Path Cost field in received CMs.
Designated Bridge – Identifies which bridge is the designated bridge for the port.
Port Designated Port – Identifies the port on the designated bridge.
Figure 6- 73. Spanning Tree Port Table window
Disabled – STP is currently disabled on the port. The port forwards
Blocking – The port is currently blocked and cannot be used to forward
Listening – The port is currently in the listening mode. The port cannot
Learning – The port is currently in the learning mode. The port cannot
Forwarding – The port is currently in the forwarding mode. The port can
Broken – The port is currently malfunctioning and cannot be used for
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