lnm minor-warning
To enable link noise monitoring and specify thresholds for noise errors on T1/E1 links that are used to signal
minor warning events and recovery from those events, use the lnm minor-warning command in T1 or E1
controller configuration mode. To disable link noise monitoring minor warnings, use the no form of this
command.
lnm minor-warning [{clear| set} [line-code-violation lcv-value [path-code-violation pcv-value]] [duration
seconds]]
no lnm minor-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 minor
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 minor warning event on the link. When errors on the link are greater than or
equal to these values, a minor 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 154.
•
For E1 links, the range is 7 to 2048. The default is 205.
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 145.
•
For E1 links, the range is 5 to 832. The default is 205.
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 minor
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 minor-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
1015
T3, E3, T1, E1 Controller Commands on the Cisco ASR 9000 Series Router
lnm minor-warning
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