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No message is sent now. No MDL message is being sent. If an MDL message,
path or idle-signal for example, was being sent, the
screen would display “Message sent now: path. idle
signal.”
Message data elements MDL data elements
EIC: line, LIC: line, FIC: line, UNIT: line EIC, LIC, FIC, and UNIT are four elements present in all
types of MDL messages. Their values are user
configurable and default to line.
FI: line, PORT_NO: line, GEN_NO: line FI is found in MDL path messages, PORT_NO in MDL
idle signal messages, and GEN_NO in MDL test signal
messages. Their values are user configurable and
default to line.
Periodical detection State of periodical detection of MDL, disabled by
default at the startup of the router.
When the function is enabled, the screen displays:
Periodical detection is enabled.
No message was received.
When MDL messages are detected, the screen
displays:
Message received now: path.idle signal.
EIC: line, LIC: line, FIC: line, UNIT: line
path/FI: line
idle Signal/PORT_NO: line
FEAC state FEAC state
No code is sent now. DS3 Line Loop
Back Deactivate was last sent.
No FEAC signal is sent. The FEAC signal sent last time
is DS3 Line Loop Back Deactivate.
Periodical detection is enabled, no
code received now.
Periodical detection of FEAC is enabled. This is the
default applied at the startup of the router.
No FEAC signal is received now.
DS3 Line Loop Back Deactivate last
received.
The FEAC signal received last time is DS3 Line Loop
Back Deactivate.
BERT state:(stopped, not completed) BERT state: completed, stopped (not completed), or
running.
Test pattern: 2^7, Status: Not Sync,
Sync Detected: 0
Test pattern in use (such as 2^7, 2^11, 2^15, and
QRSS), 2^7 in this sample output; synchronization
state, and the number of detected synchronizations
Time: 0 minute(s), Time past: 0
minute(s)
The duration of the BERT test and the time that has
elapsed
Bit errors (since test started): 0 bits Number of bit errors received since the start of the
BERT test
Bits received (since test started) Number of bits received since the start of the BERT test
Bit errors (since latest sync) Number of bit errors received since last
synchronization
Bits received (since latest sync) Number of bits received since last synchronization
Historical Statistics Historical statistics
Last clearing of counters Time when last counter clearing is performed, for
example, 14:39:02 UTC Sat 06/25/2005. If no clearing
is performed, “Never” is displayed.
Table 21 Description on the fields of the display controller t3 command
Field Description