如何在centos7配置文件中配置网桥

#vi /etc/sysconfig/network-scripts/ifcfg-br0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.144
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DNS=114.114.114.114
USERCTL=yes
TYPE=Bridge
IPV6INIT=no
但是如何将这个网桥绑定到网卡上呢比如我的网卡是em1

/etc/sysconfig/network-scripts/ifcfg-br0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.144
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DNS=114.114.114.114
USERCTL=yes
TYPE=Bridge
IPV6INIT=no
但是如何将这个网桥绑定到网卡上呢比如我的网卡是em1