Configuring media type for a transceiver

With certain FortiGate models, a transceiver may not successfully connect immediately when plugged into a port.  Configuration via the CLI is required.

This recipe shows how to configure the media type when ports using FG-TRAN-CFP2-LR4 will not become active. FortiGate models requiring this configuration with this transceiver are: FG-3800D, FG-3810D, FG-3815D, FIM-7910E, and FIM-7920E.

Configuring media type for FG-3800D, FG-3810D, and FG-3815D

Connect to the CLI of your FortiGate system using the management IP and enter the command below. The interface and transceiver indicated are examples. Be sure to enter the correct interface name and media type. 

config system interface
   edit port 1
       set mediatype CFP2-LR4
   end 

After you enter the CLI command, the FortiGate will reboot and the link to the transceiver is active.

Configuring media type for FIM-7910E & FIM-7920E

A manual reboot is required when changing the media type for the FIM-7910E but not for the FIM-7920E. The interface and transceiver indicated are examples. Be sure to enter the correct interface name and media type.

config system interface
    edit "2-C1"
        set mediatype lr
    next
end
execute reboot =====> only necessary for the FIM-7910E

For more details, consult the Fortinet Document Library’s hardware manuals.

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