How does it work ?
Nothing in the documentation about it, interfaces doesn't appear in the menu lagg and the messages in this forum and everywhere else mention a menu that doesnt exist anymore: https://forum.netgate.com/topic/131207/lagg-on-switched-ports-on-sg-3100 (previous version of Pfsense I guess)
The command line command in the above topic doesn't seem to work anymore.
What are you seeing?
What are you trying to do?
I want to use the 1st and 2nd port of the switch as a single lagg interface.
For the moment I use the 2nd port as a ''backup'' of the 1st one (simply by plugging them on the same lan, with STP capable switches).
Is there a way to do real LAGG? (the screenshot in the mentioned thread confuses me because I don't have a LAGGs menu in the Interface-->Switch section (pfSense 2.4.4)) Or is it the only way to have a backup link on my lan side ?
What you do is set two ports to the same VLAN configuration then, on the Interfaces > Switches, Ports tab you can click on the LAGG on each port and set an unused ID, Such as
1on the LAGG ports.
Note that this is a Loadbalance type lagg, not LACP, etc.
ok, thanks for your answer.
It's what I tried, but when I do that my pings stop and never recover. Is it a normal behavior with a loadbalance lagg ? (I've only used LACP on xg-7100 for the moment, with two real physical iface)?
Does this have something to do with the sg-3100 having only one mac address for the 4 switched ports ?
A layer 2 lagg should not care about MAC addresses.
You have to be sure you're connecting it to a switch in a compatible configuration.