D-Link D-View 5.1 User Manual page 150

D-View 5.1 User's Guide
The Time Since Topology Changed object corresponds to the Dot1dStpTi-
meSinceTopologyChange MIB object of the dot1dStp group. This read-only object
displays the last time changes were made to the network topology. These changes
usually occur when backup paths are activated due to primary path failures.
The Number of Topology Changes object corresponds to the Dot1dStpTop-Changes
MIB object of the dot1dStp group. This read-only object displays the number of times
(since this current management session with the device was started) changes were
made to the network topology. Changes usually occur on the network when backup
paths are activated.
The Designated Root object corresponds to the Dot1dStpDesignatedRoot MIB object of
the dot1dStp group. This read-only object displays the bridge ID of the current root
bridge on the network as determined by STP.
The Root Cost object corresponds to the Dot1dStpRootCost MIB object of the dot1dStp
group. This read-only object displays the cost for the path between this bridge and the
root bridge. If the selected bridge is the root bridge, then this displays zero.
The Root Port object corresponds to the Dot1dStpRootPort MIB object of the dot1dStp
group. This read-only object identifies the port (on this bridge) that offers the least path
cost from this bridge to the root bridge. In the event of a network loop, data packets will
pass through the root port.
The Maximum Aging Time object corresponds to the Dot1dStpMaxAge MIB object of
the dot1dStp group. This read-only object indicates the maximum age of STP
information learned from the network (on any port) before it is discarded.
The Hello Time object corresponds to the Dot1dStpHelloTime MIB object of the
dot1dStp group. This read-only object displays the amount of time between
transmission of configuration BPDUs by this bridge on any port when operating as the
root or trying to become so.
The Hold Time object corresponds to the Dot1dStpHoldTime MIB object of the
dot1dStp group. This read-only object displays the time interval during which no more
than two configuration BPDUs shall be transmitted by this bridge.
The Forward Delay object corresponds to the Dot1dStpForwardDelay MIB object of the
dot1dStp group. This read-only object indicates how fast any port on the bridge can
change its spanning state when moving towards the forwarding state. This value
determines how long the port stays in each of the listening and learning states, which
precede the forwarding state.
The Aging Time (If Root) object corresponds to the Dot1dStpBridgeMax-Age MIB
object of the dot1dStp group. This read-write object determines how long this bridge
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