Resource Utilization Monitor for Switches, Routers, and Virtual Chassis
The Resource Utilization monitor shows a line chart for CPU and memory use for a switch, router, and Virtual Chassis. The vertical axis shows the percentage of the resource being consumed. The horizontal axis shows the times when samples were taken. The time period that the chart represents can be selected from a list.
This monitor appears on the Equipment tab in Monitor mode.
This topic describes:
Resource Utilization Summary
The summary view of the Resource Utilization monitor shows a line chart representing memory and CPU use. There are six possible categories shown on the chart, depending on which device type is selected:
| CPU User | (Orange) the percentage of time that the CPU uses to run user processes, such as the database. |
| CPU System | (Green) the percentage of time that the CPU uses on all processes for the system. |
| CPU Background | (Light Blue) the percentage of time that the CPU uses on background processes. |
| CPU Interrupt | (Red) the percentage of time that the CPU uses for interrupt handling. |
| CPU Idle | (Purple) the percentage of time that the CPU is available for work. |
| 5 min Mem avg | (Dark Blue) the amount of memory being used over a 5-minute average. |
You can interact with the chart to manipulate the data being displayed by:
Mouse over a line’s legend to highlight the line.
Removing or restoring a line by clicking the legend item.
Displaying specific chart values by mousing over a datapoint.
Changing the time period that the chart covers.
If you select Custom, an additional dialog box opens, enabling you to select a starting and ending date and time.
Resource Utilization Details
In Resource Utilization Details, you can view utilization rates for memory and CPU over different periods of time. You can select the time period from a list or specify a custom value. If you select Custom, an additional dialog box, enabling you to select a starting and ending date and time.
The data is presented in two line charts or graphs, one for memory utilization and the other for CPU utilization. Select a timeframe for analysis from the list to update both graphs. Depending on the timeframe selected, the charts refresh to display time increments proportional to the timeframe. For example, if you select 1 Hour, the time increments are 5 minutes apart; if you select 1 Day, the time increments are 1 hour apart. Mouse over a data point to view the precise value at that point.