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Viewing STG ports

The spanning tree group Ports tab allows you to view the status of all the ports that are active in the spanning tree groups on the switch. If a port is associated with more than one STG, the port has one entry in this table for each STG assigned.

To view STG ports:

  1. From the Device Manager menu bar, choose VLAN > STG.
  2. The STG dialog box opens with the spanning tree group Configuration tab displayed.
  3. Click the Ports tab.
  4. The STG Ports tab opens.

The table below describes the spanning tree group Ports tab fields.


Item Description
Port
The port number.
StgId
The STG ID the port is assigned to.
Priority
The value of the priority field that is contained in the first (in network byte order) octet of the (2 octet long) Port ID.
State
The port's current state as defined by application of the Spanning Tree Protocol. This state controls what action a port takes on reception of a frame.
EnableStp
The status of Spanning Tree Protocol on the port.
FastStart
When this flag is set, the port is moved directly to the forwarding state upon being enabled.
PathCost
The contribution of this port to the path cost of the paths toward the spanning tree root that includes this port.
DesignatedRoot
The unique Bridge Identifier of the Bridge recorded as the Root in the Configuration BPDUs transmitted by the Designated Bridge for the segment to which the port is attached.
DesignatedCost
The path cost of the Designated Port of the segment connected to this port. This value is compared to the Root Path Cost field in received BPDUs.
DesignatedBridge
The Bridge Identifier of the bridge this port considers to be the Designated Bridge for this port's segment.
DesignatedPort
The Port Identifier of the port on the Designated Bridge for this port's segment.
ForwardTransitions
The number of times this port has transitioned from the Learning state to the Forwarding state.


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