
44 Chapter 1 Device Manager basics
209322-C
Working with statistics and graphs
Device Manager tracks a wide range of statistics for each switch, the stack
(chassis), and each port. You can view and graph statistics for a single object or
multiple objects. For information about the statistics tracked for the switch and
ports, refer to “Statistics for single and multiple objects” on page 47 and
“Graphing chassis statistics” on page 74.
This section describes the types of statistics and graphs available, the graph dialog
boxes, and the procedure for creating a graph.
Types of statistics
The data tables in the statistics dialog boxes list the counters, or categories of
statistics being gathered, for the specified object. For example, the categories for
ports include Interface, Ethernet Errors, Bridge, and Rmon. Each category can be
associated with six types of statistics.
Table 12 describes the types of statistics shown in the statistics dialog boxes.
Types of graphs
With Device Manager, you can create line, area, bar, and pie graphs. Figure 12,
Figure 13, Figure 14, and Figure 15 illustrate the different graph styles,
respectively.
Table 12 Types of statistics
Statistic Description
AbsoluteValue The total count since the last time counters were reset. A system
reboot resets all counters.
Cumulative The total count since the statistics window was first opened. The
elapsed time for the cumulative counter is shown at the bottom of the
graph window.
Average/sec The cumulative count per polling interval.
Minimum/sec The minimum average for the counter per polling interval.
Maximum/sec The maximum average for the counter per polling interval.
LastVal/sec The average for the counter during the previous polling interval.
Comentarios a estos manuales