# Displaying RSTP ports information

Use this proceudre to view RSTP ports information.

## Procedure steps

1. From the navigation tree, double-click VLAN.

2. From the VLAN tree, double-click Spanning Tree.

3. From the Spanning Tree folder, click RSTP.

4. Select the Ports tab.

## Variable definitions

The following table outlines the parameters of the Ports tab.

Table 1. RSTP Ports tab parameters
Variable | Value
--- | ---
Port | The port number.
State | Used to identify a port state in this RSTP instance. The port state is cataloged as discarding, learning, and forwarding.
Priority | The value of the priority field which is contained in the first (in network byte order) octet of the (2 octet long) Port ID.
PathCost | The contribution of this port to the cost of paths towards the spanning tree root.
ProtocolMigration | Indicates the Protocol migration state of this port. Set this field to true to force the port to transmit RSTP BPDUs. Note: If this field is set to true and the port receives an 802.1d type BPDU, the port again begins transmitting 802.1d BPDUs.
AdminEdgePort | The administrative value of the Edge Port parameter. A value of true indicates that this port is assumed to be an edge-port and a value of false indicates that this port is assumed to be a nonedge-port.
OperEdgePort | The operational value of the Edge Port parameter. The object is initialized to false on reception of a BPDU.
AdminPointToPoint | The administrative point-to-point status of the LAN segment attached to this port. A value of forceTrue indicates that this port is always treated as being connected to a point-to-point link. A value of forceFalse indicates that this port is treated as having a shared media connection. A value of auto indicates that this port is considered to have a point-to-point link if it is an aggregator and all of its members are aggregatable, or if the MAC entity is configured for full duplex operation, either through auto-negotiation or by management means.
OperPointToPoint | The operational point-to-point status of the LAN segment attached to this port. This field indicates whether a port is considered to have a point-to-point connection. The value is determined by management or by auto-detection.
Participating | This field specifies whether a port is participating in the 802.1w protocol.
DesignatedRoot | The bridge identifier of the old root of the Spanning Tree as determined by the Spanning Tree Protocol as executed by this node.
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 which this port considers to be the Designated Bridge for this port segment.
DesignatedPort | The Port Identifier for the port segment which is on the Designated Bridge.
ForwardTransitions | The number of times this port has transitioned from the Learning state to the Forwarding state.