Configure Huawei Switch Optical Port

Huawei switch optical ports can be configured by verifying module compatibility, enabling the optical interface, and setting interface attributes via CLI commands.

1. Verify Optical Module and Fiber Compatibility

Before configuring an optical port, ensure that the optical module matches the interface speed and type of fiber: single-mode modules with single-mode fiber, and multimode modules with multimode fiber. Avoid using a higher-rate module than the interface supports (e.g., do not use a 10G module on a 1G port). Perform a loopback test by connecting the fiber jumper to the same module to check for abnormal conditions. Check the wavelength, received, and transmitted optical power using the command display transceiver interface xgigabitethernet 0/0/2 verbose in system view .

2. Configuring Combo Interfaces

Some Huawei switches have combo interfaces with both electrical and optical ports sharing a single logical interface. Only one port can be active at a time. To enable the optical port:

• Enter system view: system-view
• For GE combo interfaces: interface GigabitEthernet0/0/0 then combo enable fiber to switch to optical mode, or undo combo enable fiber to revert to electrical mode .
• For 10GE/2.5GE combo interfaces: port combination-mode 10GE interface interface-name to switch to optical mode, or undo port combination-mode 10GE interface interface-name to revert .
• After switching, configure interface attributes such as speed and duplex in the same interface view.

3. Interface Split (High-Bandwidth Interfaces)

On switches like the CX320, a 40GE interface can be split into four 10GE interfaces using either a 1-to-4 high-speed cable, active optical cable (AOC), or 40GE optical module with optical fibers. Ensure that the remote interfaces have compatible optical modules with matching wavelengths .

4. Checking and Enabling the Port

• Check the port status: display interface xgigabitethernet0/0/2
• If the port shows Administratively DOWN, enable it with: interface xgigabitethernet0/0/2 then undo shutdown .
• Verify the interface is operational using display interface brief.

5. Additional Tips

• Always wear an anti-static wrist strap when handling optical modules .
• Save configuration changes to make them permanent: save .
• Ensure the peer device interface is configured with compatible speed and mode.
• For stacking switches using optical ports, follow the logical port mapping and topology (chain or ring) as per the model .

By following these steps, Huawei switch optical ports can be properly configured, verified, and integrated into the network, ensuring reliable optical connectivity.