4 — ONT and MDU statistics and performance monitoring
Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02 November 2013 4-11
3FE 55873 AAAA TCZZA Edition 01
ONT Product Information Guide
ONTL2UNI
ONTL2UNI statistics
provide a view of data
traffic to and from the
customer UNI, help
detect errors between
the ONT and the CPE,
and are collected and
reported to the OLT via
OMCI
15 min FRAMES Count of frames upstream and downstream on the UNI
BYTES Count of bytes upstream and downstream on the UNI
MCFRAMES Count of multicast frames upstream and downstream
DSDRPDFRMS Count of dropped frames downstream. Indicates the
number of frames discarded. Impacts customer service
traffic.
USDRPDFRMS Count of dropped frames upstream. Indicates the
number of frames discarded. Impacts customer service
traffic.
USFRAMES Count of frames upstream on the UNI
DSFRAMES Count of frames downstream on the UNI
USBYTES Count of bytes upstream on the UNI
DSBYTES Count of bytes downstream on the UNI
USMCFRAMES Count of multicast frames upstream on the UNI with the
multicast destination MAC address. Indicates the
number of frames discarded. Impacts customer service
traffic.
DSMCFRAMES Count of multicast frames downstream on the UNI with
the multicast destination MAC address. Indicates the
number of frames discarded. Impacts customer service
traffic.
ONTMOCA 15 min RXFRMS Count of received frames upstream
RXERRFRMS Count of received errored frames upstream
PONONTTC
PONONTMCTC
PONONTTCHSI
PONONTTCCES
PONONTTCFLOW
PONONTTCVOIP
PONONTTC (aggregate)
PON-level statistics
provide GEM counters
at the ONT and OLT side
which allows
comparison of Tx/Rx
traffic between the OLT
and ONT and can help
verify the transmission
quality of the PON.
15 min TXBLOCKS Transmitted GEM blocks upstream. A GEM block is a
fixed 48-byte data chunk of the payload at the ONT
PON interface for the specific ONT or service. A
discrepancy between GEM block statistics on the OLT
and ONT may indicate a PON transmission problem.
TXFRAGS Transmitted GEM fragments upstream. This indicates
fragmented or unfragmented GEM frames at the ONT
PON interface for the specific ONT or service.
RXBLOCKS Received GEM blocks downstream. A GEM block is a
fixed 48-byte data chunk of the payload at the ONT
PON interface for the specific ONT or service. A
discrepancy between GEM block statistics on the OLT
and ONT may indicate a PON transmission problem.
RXFRAGS Received GEM fragments downstream.This indicates
fragmented or unfragmented GEM frames at the ONT
PON interface for the specific ONT or service.
LOSTFRAGS Transmitted and received lost GEM fragments
downstream and upstream. May indicate errored
fragments. May impact customer service traffic.
BADGEMHDRS Received malformed GEM fragments downstream by
the ONT. Indicates an issue with the transmission
medium or hardware.
Alarm type Interval Montype Counter description
(2 of 4)
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