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71 — Statistics presentation overview
Alcatel-Lucent 5620 Service Aware Manager, Release 7.0 R6 December 2009 71-3
3HE 04551 AAAE Ed. 01 Statistics Management Guide
Graphical statistics view
Statistics can be viewed in a graph using the 5620 SAM statistics plotter. The plotter
can display multiple performance, accounting, and server performance statistics
simultaneously using dual axes. The plotter also provides a numerical value for each
point on the graph.
Each 5620 SAM client can open up to five statistics plotters, and each plotter can
simultaneously plot up to four counters. Plotters can have independent Y axes on the
left and right sides of a graph, and any counter can be assigned to one of the Y axes.
A plotter can plot real-time or historical statistics. Historical plots use statistics from
earlier collections that are stored in the 5620 SAM database. The plotter
automatically plots all of the stored values for the specified counter. Real-time plots
collect statistics while the plotter window is open and plot the data as it is collected.
For real-time statistics, when multiple 5620 SAM clients each have multiple open
plotters that are displaying multiple counters, a high volume of statistics is collected
from the NEs. If the collection for many of the plotters is from the same NE, the NE
is polled independently for each plotter, which may affect performance. You can use
a scope of command role to limit plotter access to specific 5620 SAM user groups.
Performance statistics are collected from NE MIBs and converted to periodic values.
Accounting statistics are collected, filtered, as required, for example, by queue ID for
network ingress objects, and converted to periodic values. The 5620 SAM calculates
periodic values by subtracting the previous counter value from the current counter
value. Periodic data is typically more useful than raw counter values for
troubleshooting and trend analysis.
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