ovs 实验 vxlan gre

1. 实验环境：

virtual box 虚拟机两台，host-only 网卡一个，系统CentOS Linux release 7.4.1708 (Core) 

安装openvswitch

2. 配置vm1

ovs-vsctl add-br br0
ovs-vsctl add-br br1 
opvs-vsctl add-port br1 enp0s8
ovs-vsctl add-port br0 vx1 -- set interface vx1 type=vxlan options:remote_ip=1.1.1.2

ifconfig br0 11.1.1.1/24 up 
ifconfig br1 1.1.1.1/24 up 

#ip a 

3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP qlen 1000
    link/ether 08:00:27:76:e2:f3 brd ff:ff:ff:ff:ff:ff
4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 5e:d2:fc:2d:09:e0 brd ff:ff:ff:ff:ff:ff
5: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN qlen 1000
    link/ether 16:ad:32:28:95:4a brd ff:ff:ff:ff:ff:ff
    inet 11.1.1.1/24 brd 11.1.1.255 scope global br0
       valid_lft forever preferred_lf