You can view graphs in Explore and in the report outputs. Graphs show properties over time, letting you determine when significant
events occur. For example, you can graph traffic to identify unexpected shifts, visualize growth trends, and determine whether
traffic returns to normal levels after maintenance. Drops in traffic could indicate a routing problem.
This section contains the following topics:
You can view graphs based on a single table entry or on all objects in a table depending on the icon you choose.
These graph icons are available both through the Explore pages and as part of the output generated by most reports.
Figure 1 shows an example of a single Explore graph of an interface’s Traffic In and Traffic Out over the last week.
View Graph Options
In the View Charts page, you can choose from any of the following options to generate additional graph views:
Show Properties—Choose which properties to show in the graph.
Time Range—Graph properties across a different time range. After changing the time range, you must click Redraw Graphs.
Data Gap—A measurement of the time delta between two consecutive data points. This delta determines whether the difference
between the two data points should be shown as a gap in the traffic. Enter the value in hours, minutes, and seconds.
Measurement gaps can occur when objects appear and withdraw from a network, when circuits become operational and non-operational,
or when demands appear or disappear due to traffic fluctuations. While these are normal conditions, you might find the data
easier to read if you adjust the Data Gap value.
Reports include an aggregate measure, such as P95 over one day. When measurement gaps span the aggregation period, the graphs
keep the aggregate at a constant rate using the last aggregate calculation. The result is a continuation of a graphed line
when possibly there is no data due to network maintenance or failures. You can show these gaps by adjusting the Data Gap value.
One property across multiple objects in either an overlay or a stacked manner.
Hide and show graphed properties—Click the property or graphed value (such as a trend) in the legend below the graph to toggle
it on and off.
View values—View values of any point in the graph by hovering your mouse over a data point.
CSV data—To list the graphed information in CSV format, click the CSV link below the graph. You can then use the browser
tools to save or send the data, or you can cut and paste it to a file.
Magnifying glass—Enlarge or decrease the size of the overall graph.
Zoom—Zoom into a specific segment of the graph. Click and hold the cursor at the beginning of the range, and then drag it
to the end point of the segment you need to enlarge. Zooming helps better read the reported data, such as when a deviation
Graphing Multiple Objects
You can graph all objects by clicking the Graph All icon at the top of the table. Thereafter, there are three available graph modes.
Individually graphing each property per object is useful when you want to see all of the data for an object in one place.
For example, this mode makes it easy to compare inbound and outbound traffic for a particular interface. Figure 1 is an example where the Traffic property for three LSPs is graphed using the Individual Object graph mode.
Graphing by Multiple Objects
You can graph a single property for multiple objects either by overlaying them or by stacking them. Figure 1 shows an example of each using the same data (Traffic property, time frame, and LSPs) as was generated for Figure 1.
Overlay by property—Overlay a single property for multiple objects in one graph. This is useful when you want to compare a single property across
multiple objects. For example, if you want to compare inbound traffic data for all interfaces, overlay graphs make it easy
to see which interfaces are carrying the most traffic.
Stack by property—Stack a single property for multiple objects in one graph one on top of the other. The size of each colored area is per property
and is proportional to the total, which is useful when comparing a single property across multiple objects over a given time.
For example, you could use stacked graphs to compare how much CPU each node is utilizing at any given time.
WAE Live assigns each object an object ID and graph color, and lists this association below each graph, thus identifying
which data belongs to which object (Figure 2). As you move your cursor over the data points, the sum of the property values is listed along with the value of each object.
To open or close the Object Reference section, click its arrow.