One day, when a new OSN 580 device was deployed in a network, the interface of a HUND2 board on it reported a LASER_MODULE_MISMATCH alarm. On-site engineer checked the optical module installed, it's a 9.95Gb/s to 11.1Gb/s XFP which fits the correct type, but the alarm still exists.
After checking the port configuration on U2000 NMS, this port is configured as line side color optical port by default.
But the module we have installed is gray optical. After change the port type to line side gray optical port, the alarm was cleared.
