Alcatel-Lucent 7330 Product Information Manual page 104

4 — ONT and MDU statistics and performance monitoring
•
location (near-end or far-end)
•
count thresholds
If a command to retrieve performance statistics includes the current 15-min interval,
a snapshot of the count at the time of the retrieval request is provided.
Table
monitoring statistics.
Rolling counters
When a rolling counter is enabled, you can retrieve the current count using a TL1 or
an EMS management session with the P-OLT. A snapshot of the current value in the
rolling counter is displayed as an integer.
Table
statistics.
Some rolling counters can be set to automatically reset to zero after being retrieved.
See the operations and maintenance documentation for the OLT for restrictions,
maximum count ranges, and the resetting of rolling counters.
4-4
Note 1 —
During ONT initialization, the current count of the first
15-min interval may be forced to restart due to the synchronization
procedure between the LT unit on the P-OLT and the ONT.
Note 2 —
Alcatel-Lucent recommends that users should wait for 30
seconds after the expiration of an interval before retrieving last
interval counts. This will ensure reliable results as synchronization is
then correct between the P-OLT and the ONTs.
4-2 lists the 15-min ONT counters the system uses to collect performance
Table 4-2 15-min ONT counters
Counter description
CES DS1/E1
Layer 1 on Ethernet ports
Layer 2 on Ethernet ports
Multimedia over coaxial alliance (MoCA) ports
TC-layer of the gigabit passive optical network (GPON) connection
Very-high-bit-rate digital subscriber line (VDSL2) ports
IGMP on multicast GEM port
4-3 lists the rolling counters the system uses to collect performance monitoring
Counter description
GPON ports
December 2010
ONT Product Information Guide Edition 01
Table 4-3 Rolling counters
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