How to achieve a proper HA on LAN side (switch prof) for single subnet?

SipriusPT

Hello everyone,

I am trying to setup a single subnet in HA on LAN side, to be switch fault tolerance too, and I went in this setup that is working:

I have also tried to use LAGG with failover and load balancing on two nics in each firewall, to avoid switching to the other firewall, if a cable or transceiver went down, but both were always on master, and I think that its not suitable for HA, since what is mentioned on netgate documentation about their internal switchs. In my case I am using non switched NICs. This was the setup that I was thinking to use in this case:

REDE_HA.drawio.png

I would like to have some reviews/feedbacks from those who have already setup such HA strategies.

Thanks in advance!