To enable an optical port on a Huawei switch combo interface, use the combo enable fiber command in interface view, then configure VLAN and security settings as needed.

Enabling the Optical Interface on a Combo Port

Huawei combo ports consist of one electrical (copper) interface and one optical (SFP) interface sharing a single internal channel. Only one interface can operate at a time. By default, the combo port works in electrical mode. To switch to optical mode:

1. Access the switch CLI via console or SSH.
2. Enter system view:

   system-view

3. Enter the interface view for the target combo port:

   interface GigabitEthernet 0/0/1 (replace 0/0/1 with your port ID)

4. Enable optical mode:

   combo enable fiber

5. To revert to electrical mode:

   undo combo enable fiber

6. Return to user view:

   return

After enabling optical mode, the GE SFP transceiver can operate normally. Ensure the same configuration is applied on the peer device to maintain connectivity .

Configuring VLAN and Port Security

Once the optical interface is enabled, configure VLAN and security settings to ensure proper network operation:

• Set the port as an access port and assign a VLAN:

  port link-type accessport default vlan 10

• Apply rate limiting to prevent traffic floods:

  qos lr outbound cir 100000

• Enable MAC address binding for security:

  port-security enableport-security mac-address sticky

• Save the configuration to retain changes after reboot:

  save

These steps ensure the optical port is active, secure, and properly integrated into the network .

Notes and Best Practices

• Do not install a copper module in the optical interface; it will remain disabled.
• If the combo interface is in auto mode, it will automatically select the optical interface if an SFP module is detected after a reboot .
• Always verify the SFP transceiver type, connector, and distance compatibility before enabling the optical port.
• Check the interface status after configuration:

  display interface GigabitEthernet 0/0/1

Following these steps ensures that the Huawei switch optical port is correctly enabled, configured, and secured for reliable network operation.