Learn how to test optical transceiver modules using power meters, BERT testers, and DDM tools. Ensure compatibility, performance, and reliability in data center and enterprise networks. 3 and MSA standards, helping avoid failure in real-world deployments. Bit Error Rate Testing. How we can get all the information presented in this image through command line (the target switch is cisco sf302-08pp) Thanks in advance. 09-16-2020 03:34 AM Not sure these are SMB switches has focussed more of GUI based, not sure when you getting information GUI why you like to do same in CLI. The ethtool command enables you to query or control the network driver and hardware settings. It takes the device name (like swp1) as an argument. Not all. If an optical module on an interface is faulty, you can run the display commands to view information about the optical module. Related Information Video Identify a Huawei-Certified Optical Module Run the display transceiver [ interface interface-type interface-number | slot slot-id ] [ verbose ]. DDM (Digital Diagnostics Monitoring) is a feature that is included in optical modules, such as SFP, SFP+, QSFP, and QSFP+ transceivers. DDM provides detailed information about the optical module's performance and status, allowing network administrators to monitor and troubleshoot network issues.