移除默认的libvirt网络

CentOS在安装libvirt包后，会自动启动默认网络，如下：

9: virbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/ether de:93:05:0d:21:ed brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0

[root@node-0 ~]# virsh net-list --all
 Name                 State      Autostart     Persistent
----------------------------------------------------------
 default              active     yes           yes

 

目前还没发现这个默认网络有什么用，可通过下面的virsh命令组合删除掉：

[root@node-0 ~]# virsh net-destroy default
Network default destroyed

[root@node-0 ~]# virsh net-autostart --disable default
Network default unmarked as autostarted

[root@node-0 ~]# virsh net-undefine default
Network default has been undefined