Chapter 5
Setup and Configuration
RUGGEDCOM ROS
User Guide
158
Viewing STP Statistics for Ethernet Ports
Parameter
Description
Learned Forward Delay
Synopsis:
0 to 65535
The actual Forward Delay time provided by the root bridge as learned in configuration
messages. This time is used in designated bridges.
Configured Max Age
Synopsis:
0 to 65535
The configured Maximum Age time from the Bridge RSTP Parameters menu.
Learned Max Age
Synopsis:
0 to 65535
The actual Maximum Age time provided by the root bridge as learned in configuration
messages. This time is used in designated bridges.
Total Topology Changes
Synopsis:
0 to 65535
A count of topology changes in the network, as detected on this bridge through link failures
or as signaled from other bridges. Excessively high or rapidly increasing counts signal
network problems.
Section 5.3.8
Viewing STP Statistics for Ethernet Ports
To view STP statistics for Ethernet ports, navigate to
Spanning Tree
»
View Port RSTP Statistics
. The
Port
RSTP Statistics
table appears.
Figure 100: Port RSTP Statistics Table
This table displays the following information:
Parameter
Description
Port(s)
Synopsis:
Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Status
Synopsis:
{ Disabled, Listening, Learning, Forwarding, Blocking, Link Down, Discarding }
Status of this port in Spanning Tree. This may be one of the following:
•
Disabled
- STP is disabled on this port.
•
Link Down
- STP is enabled on this port but the link is down.
•
Discarding
- The link is not used in the STP topology but is standing by.