Dell PowerConnect FCS624S Web Management Interface User Guide - Page 46

3 Monitoring RSTP Forward Transition Cost Design Root Design Bridge The number of times STP has changed the state of this port between BLOCKING and FORWARDING. The cost to the root bridge as advertised by the designated bridge that is connected to this port. If the designated bridge is the root bridge itself, then the cost is 0. The identity of the designated bridge is shown in the Design Bridge field. The root bridge as recognized on this port. The value is the same as the root bridge ID listed in the Root ID field. The designated bridge to which this port is connected. The designated bridge is the device that connects the network segment on the port to the root bridge. Monitoring RSTP The Rapid Spanning Tree Protocol (RSTP 802.1W) feature provides rapid traffic reconvergence for point-to-point links within a few milliseconds (0 - 500 milliseconds), following the failure of a bridge or bridge port. This reconvergence occurs more rapidly than the reconvergence provided by the 802.1D Spanning Tree Protocol (STP)) or by RSTP Draft 3. Configure RSTP before you view current RSTP information for a stack unit. For more information on how to configure RSTP, refer to "Configuring the RSTP bridge" on page 126. After configuring RSTP select Monitor > RSTP to view the bridge and port details. Select stack unit ID from the drop-down list, and click Display. The following information appears. 36 PowerConnect B-Series FCX Web Management Interface User Guide 53-1002268-01