Measurements; Error Counters; Reading Statistics - Nokia MetroHopper User Manual

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Each of these is available from the Measurements or Statistics menu in the node
manager, in some cases, from the toolbar.
The measurement and error counter windows both display information about the
performance of the network element and its current operating condition. The
statistics are collected for the signal.
3.2.1

Measurements

The Interface Measurements window, which is opened from Transmission /
FXC RRI → Measurements, displays selected information about the network
element. This information is in the form of, for example, bit error rates and
voltage or power levels recorded from particular units inside the functional
entities of the network element.
Monitoring measurements
These values are automatically refreshed according to the time interval that you
can enter into the Auto Refresh field. If the refresh rate is set to 0 seconds, the
refresh is done only once. The values can also be manually refreshed by clicking
the Refresh button.
3.2.2

Error counters

Error counters in the network element record the number of times that an error
had occurred in a particular unit or functional entity.
Click Transmission / FXC RRI → Statistics to open the Statistics dialog box,
which displays the error counters for the selected interface.
All error counters in the network element can be reset to zero by selecting the
corresponding Reset radio button in the Statistics dialog box.
3.2.3

Reading statistics

The statistics that the network element records for signal quality are kept to ITU-
T recommendation G.826. These values are available for 2M platform interfaces
of FXC RRI (last 16 measurements).
The following statistics are recorded:
18 (42) © Nokia Networks Oy
measurements
error counters
signal quality statistics.
Commissioning and Maintenance
DN99611394
Issue 2-0 en