Nortel ISDN Signaling Link, Описание, установка и эксплуатация

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Maintenance Page 307 of 378
ITG Trunk 2.0 ISDN Signaling Link (ISL) Description, Installation and Operation
TRACE and ALARM/LOG
Call Tracing (TRACE File Command)
This command interfaces with all modules to create an efficient TRACE File.
It is a monitor that stores and keeps track of information about events. For all
error conditions, a clear log of all actions is available. The TRACE File does
not solve these errors; it only indicates that there were errors and shows where
they originated. The TRACE File asks each module to report all events and
records the errors in order in a complete event log. Each event is marked with
a severity indicator.
LOG File
All hardware alarms, normal log messages, and severe events are logged in
one single LOG file.
ITG shell command set
ITG shell commands are designed to supplement overlay commands, and to
introduce new features specific to the ITG platform. To access ITG shell
commands, connect a MAT PC or a TTY to the RS-232 Maintenance port on
the ITG card faceplate. Alternatively, connect the MAT PC or a TTY to the
Serial I/O Panel port to create a more permanent connection to the ITG card
maintenance port.
D-channel Released The D-channel link has been released.
Alternate Routing QoS prevents calls from being completed. Cause value
“Temporary failure” is sent to Meridian 1 for Fallback to
PSTN.
Normal Service Restored Network performance is confirmed as acceptable and IP
telephony has been restarted.
CAUTION
Never connect to the front and back serial ports at the same time.
Table 49
SNMP trap causing events (Part 2 of 2)
Command Function