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BridgeAddress
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The MAC address used by this bridge when it must be referred to in a unique fashion.
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NumPorts
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The number of ports controlled by this bridging entity.
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ProtocolSpecification
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An indication of what version of the Spanning Tree Protocol is being run. The IEEE 802.1d implementations will return ieee8021d.
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TimeSinceTopologyChange
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The time in hundredths of a second since the last time a topology change was detected by the bridge entity or STG.
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TopChanges
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A topology change trap is sent by a bridge when any of its configured ports transitions from the Learning state to the Forwarding state, or from the Forwarding state to the Blocking state. The trap is not sent if a new root trap is sent for the same transition. Implementation of this trap is optional.
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DesignatedRoot
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The bridge identifier of the root of the spanning tree as determined by the Spanning Tree Protocol as executed by this node. This 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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The cost of the path to the root as seen from this bridge.
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RootPort
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The port number of the port that offers the lowest cost path from this bridge to the root bridge.
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MaxAge
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The 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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The amount of time in hundredths of a second between transmission of config BPDUs by this node on any port when it is the root of the spanning tree. The default value is 200 (2 seconds).
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HoldTime
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The time interval in hundredths of a second during which no more than two Configuration bridge PDUs shall be transmitted by this node. The default value is 100 (1 second).
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ForwardDelay
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The time interval in hundredths of a second that controls how fast a port changes its spanning state when moving toward the Forwarding state. The value determines how long the port stays in each of the Listening and Learning states, which precede the Forwarding state. This value is also used when a topology change has been detected and is under way, to age all dynamic entries in the Forwarding Database. [Note that this value is the one this bridge is currently using, in contrast to rcStgBridgeForwardDelay, which is the value that this bridge and all others would start using if/when this bridge were to become the root.] The default value is 1500 (15 seconds).
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