|
ProtocolSpecification
|
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.
|
Priority
|
Value of the writable portion of the bridge ID. That is, the first two octets of the (8-octet long) bridge ID. The last six octets of the bridge ID are given by the value of BridgeAddress.
|
TimeSinceTopologyChange
|
Time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
|
TopChanges
|
Number of topology changes detected by this bridge since the management entity was reset or initialized.
|
DesignatedRoot
|
Bridge ID of the root of the spanning tree as determined by the Spanning Tree Protocol. This is executed by the node. This value is used as the Root ID parameter in all configuration bridge PDUs originated by the node.
|
RootCost
|
Cost of the path to the root as seen from this bridge.
|
RootPort
|
Port number of the port that offers the lowest cost path from this bridge to the root bridge.
|
MaxAge
|
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.
|
HelloTime
|
Time between the transmission of Configuration bridge PDUs by the node on any port when it is the root of the spanning tree (in units of hundredths of a second). This is the actual value that the bridge is currently using.
|
ForwardDelay
|
Value (in hundredths of a second) that controls how fast a port changes its spanning state when moving towards the Forwarding state. The value determines how long the port stays in each of the Listening and Learning states, that precede the Forwarding state. The value is also used when a topology change has been detected and is underway. This ages all dynamic entries in the Forwarding database.
Note: This value is the one that this bridge is currently using, in contrast to dot1dStpBridge ForwardDelay which is the value that this bridge and all others would start using if/when this bridge were to become the root.]
|
BridgeMaxAge
|
Value that all bridges use for the maximum age of a bridge when it is acting as the root.
Note: 802.1D-1990 specifies that the range is related to the value of BridgeHelloTime. The granularity of this timer is specified by 802.1D-1990 to be 1 second. A badValue error may be returned if the value set is not a whole number.
|
BridgeHelloTime
|
Value that the bridge uses for HelloTime when the bridge is acting as the root. The granularity of this timer is specified by 802.1D- 1990 to be one second. An agent may return a badValue error if a set is attempted to a value that is not a whole number of seconds.
|
TimeSinceTopologogyChange
|
Value that all bridges use for ForwardDelay when this bridge is acting as the root.
Note: 802.1D-1990 specifies that the range for this parameter is related to the value of dot1dStpBridgeMaxAge. The granularity of this timer is specified by 802.1D-1990 to be one second. An agent may return a badValue error if a set is attempted to a value that is not a whole number of seconds.
|
