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ID
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An identifier used to identify a STG in the device.
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BridgeAddress
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MAC address used by a bridge when it is referred to in a unique fashion. It is recommended that the number be the smallest MAC address of all ports belonging to the bridge. However, it is only required to be unique. When concatenated with Priority, a unique bridge identifier is formed that is used in the spanning tree protocol.
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NumPorts
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Number of ports controlled by this bridging entity.
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ProtocolSpecification
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Version of the spanning tree protocol being run. Values include:
- decLb100: Indicates the DEC LANbridge 100 spanning tree protocol.
- ieee8021d: IEEE 802.1d implementations will return this entry. When future versions of the IEEE spanning tree protocol are released that are incompatible with the current version, a new value will be defined.
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TimeSinceTopologyChange
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Time (in hundredths of seconds) since the last topology change was detected by the bridge entity.
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TopChange
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Number of topology changes detected by the bridge since the management entity was last reset or initialized.
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DesignatedRoot
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Bridge identifier of the root of the spanning tree as determined by the spanning tree protocol. The value is used as the root identifier parameter in all configuration bridge PDUs originated by this node.
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RootCost
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Cost of the path to the root as seen from the bridge.
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RootPort
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Port that has the lowest cost path from the bridge to the root bridge.
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MaxAge
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Maximum age of spanning tree protocol information learned from the network on any port before it is discarded, in units of hundredths of a second. This is the actual value that this bridge is currently using.
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HelloTime
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Amount of time between the transmission of configuration bridge PDUs by this node on any port when it is the root of the spanning tree (in hundredths of a seconds). This is the actual value that this bridge is currently using.
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HoldTime
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Value of the interval length during which no more than two configuration bridge PDUs shall be transmitted by this node (in hundredths of a second).
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ForwardDelay
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This time value (in hundredths of a seconds) that controls how fast a port changes its spanning state when moving towards the forwarding state.
Value determines how long the port stays in each of the listening and learning states, which precede the forwarding state. This is also used when a topology change has been detected and is underway, to age all dynamic entries in the forwarding database.
Note: This value is the one that this bridge is currently using, in contrast to BridgeForwardDelay which is the value that this bridge and all others would start using if/when this bridge were to become the root.
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