Using optical modules in Huawei switches

Huawei switches support a range of certified optical modules, including SFP, eSFP, SFP+, SFP28, XFP, QSFP+, QSFP28, and CFP, across speeds from 100M to 800GE, with certification ensuring reliability and compatibility.Certification and CompatibilityHuawei requires that switches use certified optical or copper modules to ensure transmission reliability and service stability. Non-certified modules may cause network issues, and Huawei does not provide support for problems arising from their use . Certification for 10GE or lower modules began on July 1, 2013, and for 40GE/100GE modules on January 1, 2016. Certified modules are labeled with "HUAWEI," and their details can be verified using commands like display transceiver or display version .Supported Form Factors and SpeedsHuawei S series switches support a variety of optical module form factors and speeds :SFP: Small Form-Factor Pluggable, supports LC fiber connectors, typically 100M–1GE.eSFP: Enhanced SFP with monitoring capabilities for voltage, temperature, and optical power.SFP+: High-speed SFP, commonly 10GE.SFP28: Supports 25GE, same interface size as SFP+.XFP: 10GE modules, larger than SFP+.QSFP+: Quad SFP, supports 40GE, uses MPO connectors.QSFP28: Supports 100GE, compatible with QSFP+ interface size.CFP: Centum Form-Factor Pluggable, used for 100GE and higher-speed applications. All modules are hot-swappable, allowing replacement without powering down the switch .StarryLink Optical ModulesHuawei's StarryLink optical modules provide advanced features for data center networks :Transmission range from GE to 800GE.Ultra-reliable and secure with PHYSEC encryption for 100% packet security.Short-distance optical return loss positioning for precise fault detection.Channel loss resistance technology enhances reliability by tenfold.Exclusive optical path coupling algorithms for improved performance. These modules are designed for long-distance, high-speed, and secure interconnectivity in enterprise and data center environments.Practical Usage TipsWhen deploying optical modules on Huawei switches :Ensure fiber type matches the module (single-mode vs. multi-mode).Avoid using modules with a higher rate than the interface (e.g., 10G module on a 1G port).Verify wavelength, received, and transmitted optical power are within normal ranges using display transceiver interface xgigabitethernet 0/0/2 verbose.Perform loopback tests to check module and fiber integrity.Check port status with display interface to ensure it is not administratively down. Using certified modules and following these guidelines ensures stable, high-performance network operation and minimizes troubleshooting issues.