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What should I do if the fiber optic transceiver crashes?

Optical fiber transceivers are generally used in actual network environments where Ethernet cables cannot be covered and optical fibers must be used to extend the transmission distance. At the same time, they have also played a huge role in helping to connect the last mile of optical fiber lines to metropolitan area networks and outer networks. The role of. However, there is a crash during the use of the fiber optic transceiver, so how to solve this situation? Next, let the editor of Feichang Technology take you to understand it.

1. In general, many situations of network disconnection are caused by the switch. The switch will perform CRC error detection and length check on all received data. If the error is detected, the packet will be discarded, and the correct packet will be forwarded. However, some packets with errors in this process cannot be detected in the CRC error detection and length check. Such packets will not be sent out during the forwarding process, and will not be discarded. They will accumulate in the dynamic buffer. (buffer), it can never be sent out. When the buffer is full, it will cause the switch to crash. Because restarting the transceiver or the switch at this time can restore the communication to normal, so users usually think that it is a problem with the transceiver.

2. In addition, the internal chip of the fiber optic transceiver may crash under special circumstances. Generally, it is related to the design. If it crashes, just re-energize the device.

3. The heat dissipation problem of the optical fiber transceiver. Generally, fiber optic transceivers take a long time; they are aging. The heat of the entire device will become larger and larger. If the temperature reaches a certain level, it will crash. Solution: Replace the fiber optic transceiver. Or use the environment to add some heat dissipation measures. The heat dissipation measures are similar to the heat dissipation of the computer, so I won’t explain them one by one here.

4. The power supply problem of the optical fiber transceiver, some poor quality power supplies will be aging and unstable after a long time. This judgment can be done by touching the power supply with your hand to see if it is very hot. If it is necessary to replace the power supply immediately, the power supply has no maintenance value because of its low cost.


Post time: Jan-07-2022