Logical Objects: TRUNK
The optical signal-to-noise ratio (OSNR) alarm is an indicator of the OSNR of NCS 1002. The OSNR alarm
occurs when the measured OSNR falls below the threshold. You can configure the threshold value using the
controller optics R/S/I/P osnr-low-threshold
command in the config mode.
Clear the OSNR Alarm
Step 1
Verify the value of the minimum acceptable OSNR value of NCS 1002 using the
show controller optics R/S/I/P
command.
Step 2
If the value is not within the OSNR threshold range, configure the minimum acceptable OSNR value using the
controller
optics R/S/I/P osnr-low-threshold
command in the config mode. The range is 0 to 4000 (in units of 0.01db).
Step 3
If the value is within the range of the minimum acceptable OSNR, contact TAC .
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/c/en/us/support/index.html
for more information or call Cisco TAC (1 800 553-2447).
OTUK-AIS Alarm
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
Logical Objects: TRUNK
An Alarm Indication Signal (AIS) signal communicates to the receiving node when the transmit node does
not send a valid signal. AIS is not an error. The OTUK-AIS alarm is raised by the receiving node on each
input when it detects the AIS instead of a real signal.
OTUK-AIS is a generic AIS signal with a repeating AIS PN-11 sequence. This pattern is inserted by the card
in the ITU-T G.709 frame (Trunk) when a faulty condition is present on the client side.
Clear the OTUK-AIS Alarm
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/c/en/us/support/index.html
for more information or call Cisco TAC (1 800 553-2447).
OTUK-BDI Alarm
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
Logical Objects: TRUNK
The Optical Transport Unit Backward Defect Indication (OTUK BDI) alarm is raised when there is a path
termination error in the upstream data. This error is read as a BDI bit in the path monitoring area of the digital
wrapper overhead.
Troubleshooting Guide for Cisco NCS 1002, IOS XR Release 6.3.x
61
Alarm Troubleshooting
Clear the OSNR Alarm
Содержание NCS 1002
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