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. I noticed something odd with a fiber SFP module. When it's plugged in, there's no light visible from the transmitter. To compare, I checked another working SFP — the TX light is visible immediately, and the RX/TX power levels look. I have an issue with my Mellanox ConnectX-3 cards where any transceivers don't output any light. I've updated the. Also, the optical transceiver with digital diagnostic monitoring (DDM) can help you monitor the real-time optical power. If it's not, you can use the following command to change the speed/negotiation on that port: configure port <#> auto [on | off] speed <MBPS> duplex full Also, 'show port <#> transceiver info detail' will. We are experiencing issues with our optical ports between. @LapointeMichel that known EX2300.
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