Alcatel-Lucent 1643 AM, Руководство по эксплуатации

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SHDSL Network Termination Unit configuration command
incomplete
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Alarm identifier
NTUcCNC
Information A configuration command has possibly not been executed.
Alarm category Equipment
ASAP sdsl
Alarm severity
(default setting) Deferred
Reporting state
(default setting) Reported
Local indications –
Cause An invalid response on a configuration command has been received from the
NTU modem.
Actions Verify that the correct software image is running on the NTU. If this is not the
case, then download a suitable software image to the NTU, and perform a reset
in order to activate this software image.
If a suitable software image is running on the NTU, then reset the NTU, or
initiate a rediscovery of the SHDSL link.
Note(s) The detection of an NTUcCNC condition has no direct consequences for the
operation, the management of the remaining parameters continues as before.
EOC communication failures
There is no mechanism at the EOC link layer to guarantee delivery of a message,
except that each message requires at least one prescribed reply message. Reception of
the expected response(s) can be interpreted as a successful completion of an
EOC/EOC-ext. message exchange.
However, in case the expected response(s) are not received, two categories of EOC
communication failures can be differentiated:
•
A missing response (no response/confirmation at all, after 3 retries, while the
SHDSL line itself is operational) indicates a complete break-down of the
communication, leading to an “Embedded operations channel failure” (EOCF)
alarm.
•
An invalid response suggests that a configuration command has not been executed.
As a consequence, the configuration stored in the management information base
(MIB) on the LTU and the actual configuration of the connected SHDSL device
might differ. An invalid response leads to a “Configuration command incomplete”
(CNC) alarm.
Alarm messages
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365-312-803R7.2
Issue 4, May 2007 Alcatel-Lucent - Proprietary
See notice on first page
1-143