Troubleshooting Guide for Cisco NCS 1001, IOS XR Releases 7.x.x,
To further troubleshoot and clear this alarm, perform the following steps: Check the channel plan at the system level and verify if the OTS-OCH power levels of the amplifier meet the
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Optical Module Power Supply
Typical Troubleshooting Cases of Optical Module
Use an optical power meter to measure the transmit power of the optical module. If the transmit power of the optical module is not in the normal range, replace the optical module.
SFP Optical Receive Power lower than Alarm Threshold
It seems no actual signal received if the power is below -30dBm. Does it mean that no data packets were received or incomplete packets on the interface (G0/0/0) ?
Troubleshooting Guidelines for Optical Modules
Remove and reinstall the optical module. If the fault persists, replace the optical module with a normal one of the same type to check whether the optical module is faulty. If the fault persists, collect log
How To Enable Support For Third-Party Modules On Cisco Switches
If a module is identified as non-Cisco original, the switch may shut down the port, trigger an alarm, or display a warning message. Cisco also provides hidden commands to allow the use of
Solved: ASR1001-HX
Check the patch cable, the fibre path and, finally, check the optics at both ends.
Standard Troubleshooting for SFP modules and Media Converters
If the Tx port of the SFP module does not emit a red laser when plugged into the SFP slot, the SFP module or the SFP slot may be defective. It is advised to change to another SFP
DS110DF111: the SFP optical port fails to be inserted and removed
For DS110DF111, it is followed by a 10G SFP optical module, but after repeated insertion and removal, the optical module cannot be used, and the link status is displayed down.
Regarding optical module compatibility with ConnectX-7
From the NIC side this behavior usually indicates that ConnectX-7 has detected the module as present but not compliant, so it intentionally keeps the port in low-power / disabled state
Enabling/Configuring QSFP28 module
No communication with the module via I2C should be required, all you need to do is tie the RESETL pin high and the LPMODE pin low and the module should turn on and operate normally.