FortiLink over Trunk Ports (Port A+B on FortiGate to Port 23+24 on FortiSwitch) – Not Working

[chr1zzo]

Hello everyone,

I’m working with a FortiGate 60F (v7.2.11 build1740 [Mature]) and a FortiSwitch 124F-POE (v7.6.1 build1047).

I want to set up FortiLink over a trunk connection using ports A and B on the FortiGate and connect them to ports 23 and 24 on the FortiSwitch. My goal is to build a FortiLink trunk for redundancy and increased throughput.

However, as soon as I configure the trunk on the FortiSwitch, it stops being recognized by the FortiGate.

Am I doing something wrong? Is it even possible to set up FortiLink in this way, using a trunk across two ports?

Any help or guidance would be appreciated.

Thanks in advance!

[Jean-Philippe_P]

Hello chr1zzo, 

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible. 

Thanks, 

[Jean-Philippe_P]

To set up FortiLink over a trunk connection using multiple ports for redundancy and increased throughput, follow these steps:

1. Ensure Compatibility: Verify that both the FortiGate 60F and FortiSwitch 124F-POE support FortiLink over a trunk connection. Both devices should be running compatible firmware versions.
   
   
2. Configure FortiLink on FortiGate:
   - Access the FortiGate CLI.
   - Configure the FortiLink interface to include both ports A and B. This can be done by creating a software switch or using link aggregation (LACP) if supported.
   
   
3. Configure FortiSwitch:
   - Access the FortiSwitch CLI or GUI.
   - Create a trunk (LACP) group including ports 23 and 24.
   - Ensure that the trunk is configured to use LACP if the FortiGate is set up for LACP.
   
   
4. FortiLink Configuration:
   - On the FortiGate, ensure that the FortiLink interface is set to manage the FortiSwitch.
   - Verify that the FortiLink interface is configured to use the trunk ports.
   
   
5. Check VLAN and Tagging:
   - Ensure that VLANs are properly configured and tagged on both the FortiGate and FortiSwitch.
   - The FortiLink VLAN should be consistent across both devices.
   
   
6. Testing and Validation:
   - After configuration, test the connection to ensure the FortiSwitch is recognized by the FortiGate.
   - Check the status of the LACP group to ensure it is active and functioning correctly.
   
   

If the FortiSwitch is still not recognized, consider the following troubleshooting steps:

- Check Physical Connections: Ensure that the cables are properly connected and functioning.

- Review Logs: Check the logs on both the FortiGate and FortiSwitch for any error messages or warnings.

- Firmware Updates: Ensure both devices are running the latest stable firmware versions.

- Reboot Devices: Sometimes, a reboot of both devices can resolve recognition issues.

If the issue persists, it may be necessary to consult Fortinet support for further assistance.