Displaying STG Status

Use this procedure to display the status of an STG.

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 STG.

  4. Select the Status tab.

Variable definitions

The following table outlines the parameters of the Status tab.

Table 1. STG Status tab parameters
Variable Value
Id Displays the STG ID.
BridgeAddress Displays the MAC address used by this bridge.
NumPorts Displays the number of ports controlled by this bridging entity.
ProtocolSpecification Displays the version of spanning tree that is running.
TimeSinceTopology Change Displays the time, in hundredths of seconds, since the last topology change.
TopChanges Displays the number of topology changes since the switch was reset.
DesignatedRoot Displays the MAC address of the STP designated root.
RootCost Displays the cost of the path to the root.
RootPort Displays the port number of the port with the lowest-cost path from this bridge to the root bridge.
MaxAge Displays the maximum age, in hundredths of a second, of STP information learned from any port in the network before the information is discarded.
HelloTime Displays the amount of time, in hundredths of seconds, between Hello messages.
HoldTime Displays the interval, in hundredths of seconds, during which no more than two Hello messages can be transmitted.
ForwardDelay Displays the interval, in hundredths of seconds, during which the switch stays in Listening or Learning mode, before moving to Forwarding mode. This value is also used to age dynamic entries in the Forwarding Database.