R3303-HP HSR6800 Routers Interface Command Reference

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qrss: Specifies the length of transmitted BERT pattern, in bits, as two to the twentieth power. In this pattern,
the presence of 14 or more consecutive zeros is not allowed.
time number: Sets the duration of a BERT test, in the range of 1 to 1440 minutes.
unframed: Sets the test pattern to cover the overhead bits of the frame.
Usage guidelines
ITU O.151, ITU O.153, and ANSI T1.403-1999 define many BERT patterns, among which, T1 lines on CT3
interfaces support only 2^11, 2^15, 2^20, 2^23, and QRSS.
When running a BERT test, the local end sends out a pattern, which is to be looped over somewhere on
the line and back to the local end. The local end then examines the received pattern for the bit error rate
to help you determine whether the condition of the line is good. You must configure loopback to allow the
transmitted pattern to loop back from somewhere on the line, for example, from the far-end interface by
placing the interface in far-end loopback.
You may view the state and result of the BERT test with the display controller t3 command.
Examples
# Run a 10-minute QRSS BERT test on T1 line 1 on CT3 interface T3 2/0/0.
<Sysname> system-view
[Sysname] controller t3 2/0/0
[Sysname-T3 2/0/0] t1 1 bert pattern qrss time 10
t1 channel-set
Use t1 channel-set to bundle specified timeslots into a channel set on a T1 line.
Use undo t1 channel-set to remove the specified channel set.
Syntax
t1 line-number channel-set set-number timeslot-list list [ speed { 56k | 64k } ]
undo t1 line-number channel-set set-number
Default
No channel set is created.
Views
CT3 interface view
Default command level
2: System level
Parameters
line-number: T1 line number in the range of 1 to 28.
set-number: Number of a channel set formed from a timeslot bundle on the T1 line. It is in the range of
0 to 23.
timeslot-list list: Specifies the timeslots to be bundled. The list argument can contain multiple timeslot
numbers, each of which is in the range of 1 to 24. You can specify a single timeslot by specifying a
timeslot number, a range of timeslots by providing this argument in the form of { number1-number2 }, or
multiple timeslots by providing this argument in the form of { number1, number2-number3 }.