The hardware fast-forwarding enable command enables hardware fast forwarding.
The undo hardware fast-forwarding enable command disables hardware fast forwarding.
In versions earlier than V600R007C20SPC200, all models support this command. For V600R007C20SPC200 and later versions, device batches are distinguished by BomID Version (which can be checked using the display version command). All models except the USG6680E and USG6712E/6716E whose BomID Version is 003 or later or whose device BOM numbers contain "-001" support this command.
By default, this function is enabled.
When the function is not disabled, after receiving a packet, the FW sends the packet to the CPU for processing. After processing the packet, the CPU sends the packet to the specified outbound interface.
To reduce the CPU load and improve the device's service processing performance, the FW supports fast forwarding for certain services. For subsequent packets that meet the fast forwarding conditions, the fast-forwards the packets through hardware acceleration without sending them to the CPU.