If the fault is caused by incorrect configuration or networking environment, change the configuration or networking environment. Check whether the optical modules are Huawei-certified ones. If not, contact the supplier of. If the optical module is installed on a GE port, run the display interface GigabitEthernet x/x/x command to check information about the port, including the rate and wavelength. However, during installation and daily operation, various issues may arise. In addition to electrical cables, which are usually made. This article systematically identifies common anomalies during optical module installation. Check compatibility between the optical module and switch Most switch brands have specific compatibility requirements. This type of optical module failure mainly includes port not UP, port status is UP but do not receive or send messages, port frequently up or down and CRC error.
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