# The CiscoView Monitor Window

Use the CiscoView monitor window to monitor various types of network performance information, such as port utilization or errors. The type of performance information that is displayed depends upon

What type of router is displayed

What is selected in the display (device, card, or port)

In the monitor window is a collection of small dials or stripchart graphs representing performance information that is stored in Management Information Base (MIB) variables. Labels indicate the meanings of the MIB variables. Use the Help button to see more information about the variables that are displayed.

If you see a Grapher button, CiscoView is running on a network management platform that supports the grapher tool for troubleshooting.

You can also change the polling interval from the CiscoView Monitor windows. Remember that too frequent polling can interfere with performance.

## Using the Grapher Tool

If you see a Grapher button in the monitor window, then CiscoView is running on a network management platform that supports the SunNet Manager graphing tool to troubleshoot performance problems. To start the graphing tool, select a graphical display and click the Grapher button.

If the selected graphical display represents the value of a mathematical expression involving more than one MIB variable, the following error message appears:

Sorry, can’t graph formulas.