CentOS主机关掉虚拟网卡

$ ip a
	1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
		link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
		inet 127.0.0.1/8 scope host lo
		valid_lft forever preferred_lft forever
		inet6 ::1/128 scope host 
		valid_lft forever preferred_lft forever
	2: ens32: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
		link/ether 00:0c:29:c1:33:fa brd ff:ff:ff:ff:ff:ff
		inet 192.168.3.101/24 brd 192.168.3.255 scope global noprefixroute ens32
		valid_lft forever preferred_lft forever
		inet6 fe80::ffde:8d10:fc3:aad5/64 scope link tentative noprefixroute dadfailed 
		valid_lft forever preferred_lft forever
		inet6 fe80::9229:47b0:6a99:90e3/64 scope link noprefixroute 
		valid_lft forever preferred_lft forever
	3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
		link/ether 52:54:00:60:0b:ab brd ff:ff:ff:ff:ff:ff
		inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
		valid_lft forever preferred_lft forever
	4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
		link/ether 52:54:00:60:0b:ab brd ff:ff:ff:ff:ff:ff

查询

$ yum info libvirt-daemon
已加载插件：fastestmirror, langpacks
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Determining fastest mirrors
已安装的软件包
名称    ：libvirt-daemon
架构    ：x86_64
版本    ：4.5.0
发布    ：23.el7
大小    ：2.5 M
源    	：installed
来自源	：anaconda
简介    ： Server side daemon and supporting files for libvirt library
网址    ：https://libvirt.org/
协议    ： LGPLv2+
描述    ： Server side daemon required to manage the virtualization capabilities
			: of recent versions of Linux. Requires a hypervisor specific sub-RPM
			: for specific drivers.

卸载libvirt-daemon服务
yum remove libvirt-daemon -y
重启
reboot

再次查询，已经没有虚拟网卡了