Traffic charts display the total volume out (left) and in (right), plus the respective average and peak traffic for the period displayed. The images here show a day view (upper image) and a month view (lower image).
The accumulated volume of traffic for the time period displayed, calculated by adding the volumes from the polled samples.
Peak Traffic (Percentage)
The bits per second values reported is taken from the individual sample with the highest percentage of the configured/discovered line speed for the time period displayed. It will be seen as the highest point on the chart.
Percentage can exceed 100% if bursting is permitted on the line or the line speed in Highlight is lower than actual.
Peak Traffic (bps Actual)
The bits per second value reported is from the individual sample with the highest throughput for the time period displayed. It will be seen as the highest point on the chart. The Highlight peak therefore is the sample with the largest volume, divided by the number of seconds between samples (typically 180 or 60). Note: This may vary from the peak reported on a network device which would use a different measurement interval.
The peak bps figure may differ from the peak bps on the Percentage chart if the Highlight bandwidth has changed during the day. See Troubleshooting traffic load for more details.
The bits per second value reported is the average throughput, calculated from the total volume divided by the time period in seconds.
The percentage represents the average throughput as a percentage of the configured/discovered line speed.
Zoom: Expand the graphic to a larger pop out view
Percentage Graduated colours are used on the Percentage chart only, not for bps (Actual)
Highlight charts use colour extensively. One significant area for colour usage is in displaying load- or usage-based metrics, such as line utilisation or CPU load. Colours are graduated to make it easy to recognise how these metrics move between lightly and heavily loaded.
Highlight typically generates an alert when utilisation of a resource exceeds 80%. Other resources have a custom defined threshold, i.e. WiFi - Client Count. Colour profiles are below:
This is relevant to a number of graphics in Highlight:
- All link utilisation charts, both 3-D and flat-style
- The traffic, response and load curves on strip charts
- Host / server CPU, memory and disk usage charts
- WiFi Client Count
By hour This option is only available on a day view. It's not available on week and month views.
For the selected day, this dialog shows more detailed view of both in and out charts. Each vertical line on the chart shows the actual load for an individual poll.
View selected date/time
Set to 24h for the full day or centre the chart on an hour. For example, selecting 13 will set the chart from 12:00 to 14:00.
This toggle will automatically move to Today and display a period covering the current hour and previous hour. This auto refreshes every polling cycle, typically every 3 minutes. Switching the toggle off will return you to the initally selected date.