fortilink split-interface priority
Hello Community
In a FortiLink split-interface setup, how can i decide, which interface should be prefered?
Background
100F Cluster
Interface x1 and x2 belong to FortiLink Agg Interface
x1 goes to 1024E "Core-Main"
x2 goes to FSW1xxF Series Switch "Core-Backup"
From 1024E "Core-Main" we go to each access switch (hub & Spoke setup)
From 1xx "Core-Backup" we go to access switch-1 then switch-2, switch-3, switch-n
By this, if 1024 should be offline or damaged, we still have each access switch somehow connected to the firewall and can provide services. we do have a massive impact on bandwith within the network, but it works unit one can replace the hardware)
Initialy I had the idea to use a hardware switch on the fortigate, but we need block-intra-vlan and other features, that are not supportet on a switch on the FGT
A second 1024 is in budget for 2026, since then we have to work with the above setup.
So this i why I have to rely on split-interface active, and "need" to prioritze FGT's x1 Interface
According to the cli reference of 7.2.10 there is a command "fortilink-backup-link <integer>" but my fortigate does not know about this command
Any ideas?
/BR
Philippe
