R3303-HP HSR6800 Routers Interface Command Reference

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At startup of your device, periodical alarm signal detection is enabled on T3 channels. When detecting
LOS, LOF, or AIS signals, a T3 channel sends RAI signals to its peer. Alarm state report for the interface
is real time. You can view that by executing the display controller cpos t3 command.
The supported alarm signals, LOS, LOF, AIS, RAI, FEBE, and idle, are ANSI T1.107-1995 compliant.
Only a type of alarm signal can be sent on a T3 channel at a time. To have the T3 channel send another
type of signal, use the undo t3 set alarm command to delete the previous setting first. In addition, when
an RAI signal generated upon detection of a LOS, LOF, or AIS signal is present, the T3 channel cannot
send another type of signal. To do that, use the undo t3 set alarm detect command to disable the T3
channel to send the RAI signal generated after detecting an alarm first.
Examples
# Enable alarm signal detection on T3 channel 2 of CPOS 2/0/0.
<Sysname> system-view
[Sysname] controller cpos 2/0/0
[Sysname-Cpos2/0/0] t3 2 alarm detect
# Enable T3 channel 2 of CPOS 2/0/0 to generate AIS alarm signals.
<Sysname> system-view
[Sysname] controller CPOS 2/0/0
[Sysname-Cpos2/0/0] t3 2 alarm generate ais
t3 set bert pattern
Use t3 set bert pattern to start a BERT test on the specified T3 channel.
Use undo t3 set bert pattern to stop the BERT test running on the specified T3 channel.
Syntax
t3 t3-number set bert pattern { 2^7 | 2^11 | 2^15 | qrss } time time-number
undo t3 t3-number set bert pattern
Default
BERT is disabled.
Views
CPOS interface view
Default command level
2: System level
Parameters
t3-number: Number of a T3 channel on the current CPOS interface, in the range of 1 to 3.
pattern: Sets a bit error rate test (BERT) pattern, which can be 2^7, 2^11, 2^15, or qrss.
• 2^7—Specifies length (in bits) of the transmitted BERT pattern as two to the seventh power.
• 2^11—Specifies length (in bits) of the transmitted BERT pattern as two to eleventh power.
• 2^15—Specifies length (in bits) of the transmitted BERT pattern as two to the fifteenth power.
• qrss—Specifies length (in bits) of the transmitted BERT pattern as two to the twentieth power. This is
the Quasi-random signal sequence (QRSS) BERT pattern, which does not allow the presence of 14
consecutive zeros.