FG-90G to FS-424E-Fiber Uplink 10G+1G

[Bjoernar]

Hello,

we have two FS-424E-Fiber as core switches and two FG-90G as active/passive.

As we don't have enough 10G ports, we can only connect each Forti with 1x10G + 1x1G to the two core switches via MCLAG.

The problem is that the traffic should of course primarily run over the 10G connection, the 1G only as a passive backup.

If I add both interfaces to the Fortilink and deactivate the FortiLink split interface, it is not guaranteed that the 10G connection is actively used.

If I activate the FortiLink split interface, both are actively used.

Is there a possibility that I have overlooked?

Thanks and regards
Björnar

[Anthony_E]

Hello Bjornar,

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,

[Bjoernar]

Hi Anthony,
do you have any new information for me?

Regards
Björnar

[sachitdas_FTNT]

One of the criteria for LACP to work is having the same link speed, so using a different speed isn't supported.

[Bjoernar]

Hello, I don't want to use LACP.
10G as an active connection and 1G as a passive backup.
Not both together as LACP
If I define both connections in Fortlink and activate "FortiLink Split Interface", only one connection is active at a time.
It then always goes back to the 1G connection without me being able to influence it. The order of the interfaces doesn't matter either.

Regards
Björnar

[sachitdas_FTNT]

Hi Björnar, Currently we don't have the option to prioritize one link over another and configure a fallback scenario.

[Anthony_E]

Hi Bjornar :),

Sachit is one of our best experts! Thank you, Sachit!