4-13
User Guide for the Catalyst Express 500 Switches
OL-8122-01
Chapter 4 Monitoring
Check the Dashboard
Temperature Status
Use the thermometer with the animated fan to monitor the switch internal
temperature environment. The thermometer graphic displays:
For information about the switch temperature range and the operating
environment guidelines, see the
“Installation Guidelines” section on page 2-9
and
the
“Technical Specifications” section on page A-1
.
Port Utilization and Port Errors Graphs
At a glance, you can see the following information on port performance:
•
Port Utilization Graph—This graph displays the received utilization (blue)
and sent utilization (purple) on each port. As you monitor utilization on the
ports, note whether the percentage of usage is what you expect during that
given time of network activity. If utilization is high when you expect it to be
low, a problem might exist.
Bandwidth allocation can also be based on whether the connection is
operating in half-duplex or full-duplex mode.
•
Port Errors Graph—This graph displays the total percentage of errors on each
port.
These are some of the reasons for errors received on and sent from the switch
ports:
–
Bad cable connection
–
Defective ports
–
Software problems
–
Driver problems
OK
Green
Switch internal temperature is within the acceptable
temperature range.
Faulty
Red
Switch internal temperature is above the upper temperature
threshold.
