Cut-through switching mode

By default, all FortiSwitch models use the store-and-forward technique to forward packets. This technique waits until the entire packet is received, verifies the content, and then forwards the packet.

The FS-1024D, FS-1048D, and FS-3032D models also have a cut-through switching mode to reduce latency. This technique forwards the packet as soon as the switch receives it.

NOTE: For the FS-3032D model, the cut-through switching mode is not supported on split ports.

To change the switching mode for the main buffer for these three models, use the following commands:

config switch global

set packet-buffer-mode {store-forward | cut-through}

end

NOTE: Changing the switching mode might stop traffic on all ports during the change.