For other Huawei like those S series Campus switches, use this command: For CloudEngine or Series Switches, you can try this command: Typical TX RX Optical Power Range: Here is an example on how to query or display optical power of an interface in a Huawei Router. Optical modules are widely used in switches, network interface cards (NICs), routers, and other communication devices. During use, reading optical module information helps understand its real-time operating status, enabling faster troubleshooting of link abnormalities. Sample Output: (Can see link down and not receiving any power from the neighboring device) Or can do filtering:. - CloudEngine 16800, 12800, 9800, 8800, 7800, 6800, and 5800 Series Switches Troubleshooting Guide (V100 and V200) - Huawei How Do I Query the Optical Power of an Interface? You can run the display interface [ interface-type interface-number | slot slot-id ] transceiver verbose command to check the. Taking the Huawei 5700 series switches as an example, the commands to view optical module information are as follows: Transceiver Type :1000_BASE_SX_SFP Connector Type :LC Wavelength(nm) :850 Transfer Distance(m) :300(50um),150(62. 5um) Digital Diagnostic Monitoring :YES Vendor Name. This document is a troubleshooting and selection guide for common optical switch failures, compiled based on over 500 field cases. It systematically analyzes the causes, solutions, and preventive measures for 10 typical issues of optical switches, provides a 20-item selection checklist covering. Huawei switches using non-certified optical module may not be able to read the information, can not guarantee the accuracy of the information read, recommend the use of Huawei certified optical switch module.