H3C switches only check optical ports

You can monitor and check only the optical ports on H3C switches using commands like display interface and by configuring combo ports to fiber mode.

Viewing Optical Port Status

To check the status of optical ports and their transceivers:

• Use the command: display interface interface-type interface-number This shows link status, negotiation speed, transceiver type, and traffic statistics for the specified port .
• To view all ports at a glance, including optical ports: display interface brief This lists all interfaces, their link status, and basic statistics .

Handling Combo Ports (Optical-Copper Multiplexing)

Many H3C switches have combo ports, which combine an SFP (fiber) port and a copper (RJ45) port. Only one mode can be active at a time to avoid signal conflicts . To ensure you are checking only the optical port:

• Enable fiber mode with: combo enable fiber
• Disable copper mode if necessary: combo disable copper After enabling fiber mode, the optical port becomes active, and you can monitor it using the display interface commands .

Best Practices

• Ensure the optical transceiver is properly inserted and the wavelength matches the connected device .
• For long-distance or high-reliability connections, fiber mode is recommended by default .
• If you want to reduce log noise, you can disable Up/Down log output for non-critical ports while monitoring optical ports in real time . By following these steps, you can effectively check and monitor only the optical ports on H3C switches, ensuring accurate status reporting and troubleshooting.