Things To Know About Report Data - Lucent Technologies CentreVu Release 3 Version 5 Forecast User Manual

Trunk Performance Report
General Information
Things to Know
About Report
Data
If a row in the report contains all zeros except for Objective Blocking, then
there was no data found in the forecast trunk group tables between the
Start date (mm/dd/yy or -n: and the Stop date (mm/dd/yy
or -n: field to make a calculation on.
CentreVu™ CMS finds the number of trunks each trunk group had
on the stop date of the report time period. CentreVu CMS then
searches for the 5 busiest days in the report time period where the
trunk group had that same number of trunks.
5
From the 5 busiest days, the 5 busiest intervals are selected. This
trunk group interval data may be marked incomplete if the link was
down or if there were trunk failures or trunks were made
maintenance busy while on a call. You may direct CentreVu CMS to
consider incomplete data in the busy interval calculation or choose
not to.
The Trunks Performance Report, in addition to calculating the
number of calls carried for each trunk group, tells you what the
usage rate of the trunks in each trunk group will be.
The report presents the usage rate in Erlangs. An Erlang is 100
percent occupancy of one trunk in a given time frame — for this
forecast, the length of your intrahour interval. If the report shows a
usage rate of 7 Erlangs and your intrahour interval is 30 minutes,
this means the trunk occupancy of all trunks added together would
equal 210 minutes (7 times 30 minutes). If your intrahour interval
were 15 minutes, 7 Erlangs would equal a total trunk occupancy of
95 minutes.
Therefore, you could think of 7 Erlangs as equivalent to 7 trunks
occupied for the whole intrahour interval. Or, from a different
perspective, you could think of 7 Erlangs as meaning that, on
average, 7 trunks will be in use at any given time in the interval.
For a detailed explanation of how CentreVu CMS generates
Note
forecast data, see the section, "How the Forecast System
Generates Data," at the end of this chapter.
CentreVu CMS R3V5 Forecast 585-215-825
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