R3303-HP HSR6800 Routers Interface Configuration Guide

38
Step Command Remarks
3. Configure the interface
description.
description text
Optional.
By default, the description of an
interface is interface-name
Interface.
4. Bundle timeslots on the
interface into a channel set.
ft1 timeslot-list list [ speed { 56k |
64k } ]
If no timeslot range is specified, all
timeslots are bundled into one
channel set.
The default timeslot speed is 64
kbps, and the default T1-F interface
speed is 1536 kbps.
5. Set the cable length and
attenuation.
ft1 cable { long decibel | short
length }
Optional.
The long 0db keyword applies by
default.
6. Set the line code format.
ft1 code { ami | b8zs }
Optional.
The default is B8ZS.
7. Set the clock mode.
ft1 clock { master | slave }
Optional.
The default is slave, which is line
clock.
8. Enable user data inversion.
ft1 data-coding { inverted |
normal }
Optional.
Disabled by default.
9. Set the behavior of the
interface on the FDL in ESF
framing.
ft1 fdl { ansi | att | both | none }
Optional.
FDL is disabled by default.
10. Set the CRC mode.
crc { 16 | 32 | none }
Optional.
16-bit CRC by default.
11. Set the framing format.
ft1 frame-format { esf | sf }
Optional.
The default is esf.
12. Enable RAI detection on the
interface.
ft1 alarm detect rai
Optional.
Enabled by default.
This command is applicable when
the framing format is ESF.
13. Set alarm thresholds.
ft1 alarm-threshold { ais { level-1 |
level-2 } | lfa { level-1 | level-2 |
level-3 | level-4 } | los
{ pulse-detection | pulse-recovery }
value }
Optional.
By default:
• For LOS alarm, the threshold of
pulse-detection is 176 and the
threshold of pulse-recovery is
22. If the number of the pulses
detected during the total length
of 176 pulse detection intervals
is smaller than 22, the
pulse-recovery threshold, a
LOS alarm occurs.
• Both AIS alarm threshold and
LFA alarm threshold are level-1.