HP MSR2000/3000/4000 Router Series Interface Command Reference

129
Views
T1-F interface view
Predefined user roles
network-admin
Parameters
rai: Remote Alarm Indication (RAI).
Usage guidelines
This command is applicable when the framing format on the interface is ESF.
Examples
# Disable RAI detection on interface Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] undo ft1 alarm-detect rai
Related commands
ft1 frame-format
ft1 alarm-threshold
Use ft1 alarm-threshold to set LOS, AIS, or LFA alarm thresholds on the T1-F interface.
Use undo ft1 alarm-threshold to restore the default.
Syntax
ft1 alarm-threshold { ais { level-1 | level-2 } | lfa { level-1 | level-2 | level-3 | level-4 } | los
{ pulse-detection | pulse-recovery } value }
undo ft1 alarm-threshold { ais | lfa | los { pulse-detection | pulse-recovery } }
Default
For AIS and LFA, the alarm threshold is level-1.
For LOS, the value of pulse-detection is 176 and the value of pulse-recovery is 22. A LOS alarm is
created if the number of pulses detected within 176 pulse intervals is less than 22.
Views
T1-F interface view
Predefined user roles
network-admin
Parameters
ais: Sets the alarm threshold of alarm indication signal (AIS), which can be level-1 and level-2.
• The level-1 keyword specifies generating an AIS alarm when the number of 0s in the bit stream of
an SF or ESF frame is less than or equal to 2.
• The level-2 keyword specifies generating an AIS alarm when the number of 0s is less than or equal
to 3 in the bit stream of an SF frame or less than or equal to 5 in the bit stream of an ESP frame.
lfa: Sets the loss of frame alignment (LFA) alarm threshold, which can be level-1, level-2, level-3, and
level-4.