Viewing optical modules on Huawei optical switches

Use the display transceiver and display transceiver interface commands to view detailed optical module information, including type, wavelength, power, and diagnostic data.Basic CommandsView all optical modules on the switch Run the command: display transceiver This lists all optical ports and their associated modules, showing basic information such as module type, connector type, wavelength, and transfer distance .View a specific optical module Run the command: display transceiver interface Replace and with the actual interface (e.g., GigabitEthernet 0/0/1). This provides detailed information for that port, including vendor, serial number, manufacturing date, and module type .View detailed diagnostic information (DDM) Add the verbose parameter to see real-time operating data: display transceiver interface verbose This displays Digital Diagnostic Monitoring (DDM) data such as:Temperature (°C)Voltage (V)Bias current (mA)Transmit (TX) and receive (RX) optical power (dBm)High and low threshold alarms for each parameter .Checking Interface StatusBefore reading module data, ensure the interface is UP: display interface This shows link status, interface rate, and traffic statistics, which are prerequisites for normal module operation .Identifying Certified ModulesHuawei recommends using Huawei-certified optical modules to avoid compatibility issues, abnormal data bus behavior, or optical power alarms. Non-certified modules may cause installation problems, interface damage, or abnormal transmit/receive power alarms .Interpreting AlarmsCommon optical module alarms include:High/Low TX Power: Indicates abnormal transmit powerHigh/Low RX Power: Indicates abnormal receive powerTemperature or voltage out of range: May affect module performance These alarms are reported via OIDs such as hwOpticalPowerAbnormal and hwOpticalInvalid .SummaryTo effectively monitor Huawei switch optical modules:Use display transceiver for an overview.Use display transceiver interface for specific ports.Add verbose to access DDM data.Verify interface status with display interface.Prefer Huawei-certified modules to ensure reliability and avoid alarms. This approach allows network administrators to troubleshoot link issues, monitor module health, and maintain optimal optical performance.