Network Instruments WAN Probe Kit - Manual (Page 40)

34 Analyzing a WAN Link with Observer
The WAN Load by DLCI mode in dial view shows transfer rate, CRC error rate,
FECN/BECN frame rates graphed on dial meters.
DLCI CIR Setup
Click Settings and then the DLCI CIR Setup tab to display a dialog that lets you enter
DLCIs and their corresponding Committed Information Rates. You can eithe enter the
DLCIs manually, or automatically add DLCIs from Observer’s current alias list.
Graph View
The WAN Load display in graph view shows these same statistics (transfer rate, CRC
error rate, and FECN/BECN frame rates) as superimposed spike meters. The Committed
Information Rate (CIR) is also shown, allowing you to view the network activity against
the baseline performance you have contracted to receive from your WAN service provider
You can select line, point, or bar-style meter, and the colors for each statistic by right-
clicking on the chart. The dropdown menus at the top of the display let you select what
DLCIs to view, and how the chart should be scaled (linearly, logarithmically, or
autoscale). For linear scales, you can also set the CIR or the line rate as the maximum
value for the chart.
List View Display Properties
The Network Activity List view has only one display property option. To reset the
columns to their default widths, click on the icon or go to Mode Commands->Display
Properties (or simply right-click on the display).
To reset column widths to their default values, click Yes. To leave them in their present
state, click No.