FG HA LACP Switch clustering.

Forum|Forum|3 years ago
March 29, 2023
3 replies
2139 views

I'd like to know what is the best practice for FG HA Switch clustering.
How can I configure the LACP on switch with separate LACP group (Solution A) or I can configure the same LACP group (Solution B) .

PS. Switch is a Cisco CoreSwitch and connected the LAN network.

FortiGate

Toshi_Esumi

SuperUser

I don't think Solution B would work. One FGT needs to terminate all LAG/LACP members from the switch.

Toshi

cybernet2025Author

Explorer III

Can we configure this command?
config system interface
   edit port1_port2
       set lacp-ha-slave disable
    next
end

Toshi_Esumi

SuperUser

https://community.fortinet.com/t5/FortiGate/Technical-Tip-LACP-behavior-in-an-HA-cluster/ta-p/195163

Ok, I didn't know it's possible. I don't see much benefit of it though compared to have two separate LAGs and the switch distributes the same set of VLANs to both LAGs.

Toshi

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