Alcatel-Lucent 7330 Product Information Manual page 108

4 — ONT and MDU statistics and performance monitoring
Interval-based counters are statistical counts that are accumulated over a predefined
time interval, such as a 15-min interval, and logged as an integer entry in a table. A
total of 32 15-min intervals occurring over an 8-hr period are logged. After the 8 hr
period has elapsed, new 15-min intervals overwrite the oldest entry recorded in the
log file.
Rolling counters start at zero and count up to a maximum value. When the maximum
value is reached, the counter restarts at zero. Unlike interval-based counters, no logs
are maintained for rolling counters.
Counters serve to:
•
ensure availability of up-to-date information about how the system is working
•
help to establish threshold settings that represent acceptable performance under
normal operational conditions. After collecting counters over a range of network
activities and loads, a range of measurements can be defined, which serve as a
reference point to detect problems when they occur
•
detect error conditions, so that an alarm is raised when the count violates the
threshold setting
•
isolate and monitor a situation
•
diagnose problems as they occur when an alarm is raised
Supported ONT counters
This section describes the performance monitoring statistics that are supported by the
system. Performance monitoring data is not available for all ONTs. Table
the supported alarm types and counters. Table
supported ONT counters per ONT which are categorized into corresponding
packages.
Table
performance monitoring statistics on the system:
•
ONTENET
•
ONTL2UNI
•
ONTMOCA
•
PONONTTC,
PONONTMCTC, PONONTTCHSI, PONONTTCCES, PONONTTCFLOW,
PONONTTCVOIP, and
•
X/VDSL2 line
•
X/VDSL2 bearer/channel
•
X/DSL2 line xTU-C (xDSL transceiver unit, central office)
4-8
Note 1 —
VDSL2 line and VDSL2 channel related statistics are only
available for the modular and LP MDU ONT. The indoor, outdoor,
and business ONTs do not support VDSL2.
Note 2 —
CES DS1/E1 related statistics are only available for the
business ONT. The indoor, outdoor, and modular ONTs do not
support DS1 or E1.
Note 3 —
All performance monitoring statistics listed are maintained
and available on the P-OLT.
4-4 describes the following alarm types and their counters that support ONT
PONONTTC (aggregate)
December 2010
ONT Product Information Guide Edition 01
4-5 provides reference links to all
Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.41
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4-4 defines