FreeBSD中VLAN设置

h3c 3526:

rc.conf

引用:

ifconfig_fxp0="up polling"
cloned_interfaces="vlan16 vlan200 vlan600 vlan700"
ifconfig_vlan16="inet 192.168.16.7/24 vlan 16 vlandev fxp0"
ifconfig_vlan200="inet 222.1111.111.7/27 vlan 200 vlandev fxp0"
ifconfig_vlan600="inet 10.9.8.7/24 vlan 600 vlandev fxp0"
ifconfig_vlan700="inet 2.1.5.8/29 vlan 700 vlandev fxp0"

ifconfig:

引用:

ifconfig
fxp0: flags=8843 mtu 1500
options=48
ether 00:11:11:59:c9:c2
media: Ethernet autoselect (100baseTX )
status: active
lo0: flags=8049 mtu 16384
inet 127.0.0.1 netmask 0xff000000
vlan16: flags=8843 mtu 1500
inet 192.168.16.7 netmask 0xffffff00 broadcast 192.168.16.255
ether 00:11:11:59:c9:c2
media: Ethernet autoselect (100baseTX )
status: active
vlan: 16 parent interface: fxp0
vlan200: flags=8843 mtu 1500
inet 222.111.111.7 netmask 0xffffffe0 broadcast 222.111.111.31
ether 00:11:11:59:c9:c2
media: Ethernet autoselect (100baseTX )
status: active
vlan: 200 parent interface: fxp0
vlan600: flags=8843 mtu 1500
inet 10.9.8.7 netmask 0xffffff00 broadcast 10.9.8.255
ether 00:11:11:59:c9:c2
media: Ethernet autoselect (100baseTX )
status: active
vlan: 600 parent interface: fxp0
vlan700: flags=8843 mtu 1500
inet 2.1.5.8 netmask 0xfffffff8 broadcast 2.1.5.3
ether 00:11:11:59:c9:c2
media: Ethernet autoselect (100baseTX )
status: active
vlan: 700 parent interface: fxp0

finalgod 写到:

明白了原因。主要是网卡的中断引起的。加上其他流控，CPU占用率不会增加多少。

打开polling，中断占用的时间会少很多。
另外要注意将MCLUSTERS参数加大，ipfw的pipe采用queue机制，在队列多的时候还是挺占用内存的。
这个参数可以在/boot/loader.conf里修改。