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.

Some switch models also have a cut-through switching mode to reduce latency. This technique forwards the packet as soon as the switch receives it. To see which models support this feature, refer to the FortiSwitch feature matrix.

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.