Does anyone know tell me how the matter of bandwidth limit the FortiGate?

[Leonardo_P_]

For example, we have two links 4Mbps, ie the sum of 8Mbps, when we create a maximum bandwidth limit for a group of users 3Mbps this value applies to the sum of links, if the 8Mbits, or every link 4Mbps?

[Carl_Windsor_FTNT]

You have posted this in the FortiBalancer forum which is a totally separate product to FortiGate.  Try posting this Q on the FortiGate forum.