Chapter 5
Setup and Configuration
RUGGEDCOM RSG2488
User Guide
140 Viewing Global Statistics for STP
Figure 92: Bridge RSTP Statistics Form
1. Bridge Status 2. Bridge ID 3. Root ID 4. Root Port 5. Root Path Cost 6. Configured Hello Time 7. Learned Hello Time
8. Configured Forward Delay 9. Learned Forward Delay 10. Configured Max Age 11. Learned Max Age 12. Total Topology
Changes 13. Time Since Last TC
This table displays the following information:
Parameter Description
Bridge Status Synopsis: { , Designated Bridge, Not Designated For Any LAN, Root Bridge }
Spanning Tree status of the bridge. The status may be root or designated. This field may
show text saying not designated for any LAN if the bridge is not designated for any of its
ports.
Bridge ID Synopsis: $$ / ##-##-##-##-##-## where $$ is 0 to 65535, ## is 0 to FF
Bridge Identifier of this bridge.
Root ID Synopsis: $$ / ##-##-##-##-##-## where $$ is 0 to 65535, ## is 0 to FF
Bridge Identifier of the root bridge.
Root Port Synopsis: 1/1 to 8/2 or { <empty string> }
If the bridge is designated, this is the port that provides connectivity towards the root bridge
of the network.
Root Path Cost Synopsis: 0 to 4294967295
Total cost of the path to the root bridge composed of the sum of the costs of each link in the
path. If custom costs have not been configured. 1Gbps ports will contribute 4, 100 Mbps
ports will contribute 19 and 10 Mbps ports will contribute a cost of 100 to this figure.
For the CIST instance of MSTP, this is an external root path cost, which is the cost of the
path from the IST root (i.e. regional root) bridge to the CST root (i.e. network "global" root)
bridge.
Configured Hello Time Synopsis: 0 to 65535
The configured Hello time from the Bridge RSTP Parameters menu.