Variable Definitions

Use the data in the following table to help you understand the STG status display.

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