Port trunking or link aggregation under FreeBSD ?

[Simiganoschi Teodor]

Hello,
I have a switch with port trunking, on my server I have 2 NIC's, I
whant to make them work as port trunking to comunicate with the
switch.
My NIC's are:
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.11.10.1 netmask 0xff000000 broadcast 10.255.255.255
        inet6 fe80::250:8bff:fe11:10fa%fxp0 prefixlen 64 scopeid 0x1
        ether 00:50:8b:11:10:fa
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=b<RXCSUM,TXCSUM,VLAN_MTU>
        inet 192.168.60.19 netmask 0xffffff00 broadcast 192.168.60.255
        inet6 fe80::201:2ff:fe6e:482c%xl0 prefixlen 64 scopeid 0x2
        inet 193.16.152.215 netmask 0xffffff00 broadcast 193.16.152.255
        ether 00:01:02:6e:48:2c
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
How can I do that ?
The NIC's have to be from the same vendor?
Thank you for your help!
Best regard,
-- 
Simi klumea.