TELNET GPONDoctor 9500, Руководство пользователя

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GPONDoctor 9500
User manual
200080279-00 GPON DOCTOR 9500 user manual EN v0 WEB
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
OMCI CRC: If active all OMCI messages with wrong CRC are reported.
Please note: System considers the last 4 bytes of the OMCI message as CRC, no matter
how long it is. A message can be “malformed” but it may have a correct CRC.
Error Grouping
This feature allows the engine to group similar errors that occur in a sequence, so they
are reported altogether with the number of “occurrences”
Other OMCI “event detectors” not listed on this window but still present in the engine
(Always active if General OMCI selected)

OMCI Alarms: Reported when alarm is asserted or de-asserted by ONT.

Illegal attribute error: Reported by the ONT after a create/set operation.

Error on optional attribute: Reported by the ONT after a set/read operation

Illegal attribute value: Detected on a set operation or get response operation:
Value is in the message but according to the standard it’s out of bounds. “Legal”
attribute value domain reported.

Error results in result field on any response from the ONT to OLT’s OMCI message:
e.g. Non existing entity, Device busy, Processing Error, etc.

Section number mismatch in software download process.

Download window size violation in software download process.

Alarm sequence mismatch, missing sequence number or repeated sequence
number (For a missing or retransmitted alarm)

GET-Next sequence number mismatch.

OMCI Transaction Number mismatch, missing or repeated message.

MIB Upload sequence number mismatch, missing or repeated message.
General non OMCI issues reported by the engine by default

Truncated burst: Upstream burst signal ends “before” it was expected. Possible
symptom could be “drift of window” of “chirping” optical module on ONT.

Distance between two GPON Frames > 125us

ONT Disabled by Disable Serial Number PLOAM message

ONT not in operational state(O5) and emitting bursts or receiving BWMaps (apart
from SN-Req)