示例：
物理節點IP：10.12.40.0/24 （vlan4440）
虛機 IP：10.16.41.0/24 （vlan4439）
1、 物理網橋
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
MASTER="bond0"
SLAVE="yes"
USERCTL="no"
# vim /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE="eth1
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
MASTER="bond0"
SLAVE="yes"
USERCTL="no"
# vim /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE="bond0"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
USERCTL="no"
BRIDGE="iccsbr0"
BONDING_OPTS="miimon=100 mode=4"
# vim /etc/sysconfig/network-scripts/ifcfg-iccsbr0
DEVICE="iccsbr0"
BOOTPROTO="none"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Bridge"
USERCTL="no"
IPADDR="10.16.40.41"
NETMASK="255.255.255.0"
GATEWAY="10.16.40.254"
2、 虛機vlan網橋
# vim /etc/sysconfig/network-scripts/ifcfg-bond0.4439
DEVICE=bond0.4439
PHYSDEV=bond0
ONBOOT=yes
BOOTPROTO=none
VLAN=yes
BRIDGE=iccsbr4439
# vim /etc/sysconfig/network-scripts/ifcfg-iccsbr4439
DEVICE=iccsbr4439
TYPE=Bridge
#STP=on
ONBOOT=yes
BOOTPROTO=none
上聯cisco2960配置
| ............... interface Port-channel1 switchport trunk native vlan 4440 switchport mode trunk ! ........ ! interface GigabitEthernet0/7 switchport trunk native vlan 4440 switchport mode trunk channel-group 1 mode active ! interface GigabitEthernet0/8 switchport trunk native vlan 4440 switchport mode trunk channel-group 1 mode active 端口7和8分別連接服務器的兩個網卡，其中
“switchport trunk native vlan 4440” 代表服務端過來的數據包，如果沒打vlan id，則標示為vlan 4440；針對KVM服務器管理IP（10.16.40.0/24 vlan4440）
“switchport mode trunk” 代表服務端過來的打了標簽的vlan，全部放行；針對KVM打了標簽的虛機數據包（10.16.41.0/24 vlan4439）
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3、 當虛機需走vlan4439時，在網絡接入選擇iccsbr4439即可
4、 當有其他vlan需求時，同上類似配置