Netgraph静态编译的参数

options 	NETGRAPH		# netgraph(4) system
options 	NETGRAPH_ECHO
options 	NETGRAPH_ETHER
options 	NETGRAPH_FEC
options 	NETGRAPH_IFACE
options 	NETGRAPH_NETFLOW
options 	NETGRAPH_ONE2MANY
options 	NETGRAPH_SOCKET

网卡绑定的话应该只选下面这三项就可以了.
options 	NETGRAPH
options 	NETGRAPH_FEC
options 	NETGRAPH_SOCKET


>                Cisco Switch                              FreeBSD
>
>                            /Port 4/1--------------fxp0\           /vlan0
> dot1q Trunk - EtherChannel<                            >--fec0---<
>                            \Port 4/2--------------fxp1/           \vlan1
>                                                                    \vlan2
>