lnm major-warning
To enable link noise monitoring and specify thresholds for noise errors on T1/E1 links that are used to signal
major warning events and recovery from those events, use the lnm major-warning command in T1 or E1
controller configuration mode. To disable link noise monitoring major warnings, use the no form of this
command.
lnm major-warning [{clear| set} [line-code-violation lcv-value [path-code-violation pcv-value]] [duration
seconds]]
no lnm major-warning [{clear| set} [line-code-violation lcv-value [path-code-violation pcv-value]]
[duration seconds]]
Syntax Description
(Optional) Specifies threshold values for Line Code Violation (LCV) and Path Code
Violation (PCV) errors that are used to determine when a recovery from a major
warning has occurred and a “cleared” event is signalled. The clear threshold values
cannot exceed the set threshold values.
clear
(Optional) Specifies the high threshold values for LCV and PCV that are used to
signal a major warning event on the link. When errors on the link are greater than or
equal to these values, a major warning occurs and a “crossed” event is signalled.
set
(Optional) Specifies the threshold value for LCV errors (Bi-Polar Violation [BPV]
or Excessive Zeroes [EXZ]), in the following possible ranges:
•
For T1 links, the range is 5 to 1544. The default is 1544.
•
For E1 links, the range is 7 to 2048. The default is 2048.
line-code-violation
lcv-value
(Optional) Specifies the threshold value for PCV errors (CRC errors), in the following
possible ranges:
•
For T1 links, the range is 3 to 320. The default is 320.
•
For E1 links, the range is 5 to 832. The default is 831.
path-code-violation
pcv-value
(Optional) Specifies the period of time (in seconds) during which the number of link
noise errors must continuously exceed the set threshold levels to signal a major
warning, or remain below the clear threshold levels to signal a cleared event. The
range is 4 to 600. The default is 10.
duration seconds
Command Default
Link noise monitoring is disabled.
If the lnm major-warning command is run without specifying set or clear options, then set is used as the
default option with its default values. The clear option inherits the same threshold values as the default set
threshold values.
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
1012
T3, E3, T1, E1 Controller Commands on the Cisco ASR 9000 Series Router
lnm major-warning
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