openvswitch 使用记录（二）--vlan 环境搭建（2）
host2上ovs-br2创建过程：
初始状态
[root@localhost out]# ovs-vsctl show
06e749d9-0c1e-4b72-bcbc-94db1b7111dd
ovs_version: "2.12.0"
1、在host2上添加ovs-br2网桥
[root@localhost out]# ovs-vsctl add-br ovs-br2
2、添加端口（物理网卡）到ovs-br2上
[root@localhost out]# ovs-vsctl add-port ovs-br2 enp6s0
注意：此时网络可能无法通往外网如需上网做如下处理：
[root@localhost out]# ifconfig enp6s0 0
[root@localhost out]# killall dhclient
[root@localhost out]#ifconfig ovs-br2 up
[root@localhost out]#dhclient ovs-br2
查看当前ovs网桥信息
[root@localhost out]# ovs-vsctl show
06e749d9-0c1e-4b72-bcbc-94db1b7111dd
Bridge "ovs-br2"
Port "ovs-br2"
Interface "ovs-br2"
type: internal
Port "enp6s0"
Interface "enp6s0"
ovs_version: "2.12.0"
3、向ovs-br2中添加端口p10 并将vid设置为10
[root@localhost out]# ovs-vsctl add-port ovs-br2 p10 tag=10 -- set interface p10 type=internal
4、向ovs-br2中添加端口p20 并将vid设置为20
[root@localhost out]# ovs-vsctl add-port ovs-br2 p20 tag=20 -- set interface p20 type=internal
查看此时网桥信息 此时已经添加2个vlan端口，
[root@localhost out]# ovs-vsctl show
06e749d9-0c1e-4b72-bcbc-94db1b7111dd
Bridge "ovs-br2"
Port "ovs-br2"
Interface "ovs-br2"
type: internal
Port "p20"
tag: 20
Interface "p20"
type: internal
Port "enp6s0"
Interface "enp6s0"
Port "p10"
tag: 10
Interface "p10"
type: internal
ovs_version: "2.12.0"
注意：Port "enp6s0" 默认为trunk端口，允许所有的vlan id通过
5、添加vm3网卡模式如下图，选择p10
下图为vm3网卡
配置ip地址
配置vm3的eth0 ip 为 192.168.1.4
[loongson@localhost ~]$ ifconfig
eth0: flags=4163
inet 192.168.1.4 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5054:ff:fef6:d092 prefixlen 64 scopeid 0x20
ether 52:54:00:f6:d0:92 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 20 bytes 2296 (2.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
6、添加vm4网卡模式如下图，选择p10
ip地址如下
[loongson@localhost ~]$ ifconfig eth0
eth0: flags=4163
inet 192.168.1.5 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5054:ff:fef0:dcf prefixlen 64 scopeid 0x20
ether 52:54:00:f0:0d:cf txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 18 bytes 1292 (1.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
7、 添加vm5网卡模式如下图，选择p20
查看ip地址
[loongson@localhost ~]$ ifconfig eth0
eth0: flags=4163
inet 192.168.1.6 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5054:ff:fe81:9971 prefixlen 64 scopeid 0x20
ether 52:54:00:81:99:71 txqueuelen 1000 (Ethernet)
RX packets 2 bytes 84 (84.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 19 bytes 1354 (1.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
8、 添加vm6网卡模式如下图，选择p20
[loongson@localhost ~]$ ifconfig eth0
eth0: flags=4163
inet 192.168.1.7 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5054:ff:fe95:f3fe prefixlen 64 scopeid 0x20
ether 52:54:00:95:f3:fe txqueuelen 1000 (Ethernet)
RX packets 2 bytes 84 (84.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 19 bytes 1354 (1.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
9、验证结果
vm3---ping--->vm1
loongson@localhost ~]$ ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=73.0 ms
64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=34.7 ms
64 bytes from 192.168.1.2: icmp_seq=3 ttl=64 time=35.4 ms
64 bytes from 192.168.1.2: icmp_seq=4 ttl=64 time=34.8 ms
vm3---ping--->vm4
[loongson@localhost ~]$ ping 192.168.1.5
PING 192.168.1.5 (192.168.1.5) 56(84) bytes of data.
64 bytes from 192.168.1.5: icmp_seq=1 ttl=64 time=1.32 ms
64 bytes from 192.168.1.5: icmp_seq=2 ttl=64 time=1.11 ms
64 bytes from 192.168.1.5: icmp_seq=3 ttl=64 time=1.24 ms
64 bytes from 192.168.1.5: icmp_seq=4 ttl=64 time=1.10 ms
vm3---ping---->vm5、vm6
[loongson@localhost ~]$ ping 192.168.1.6
PING 192.168.1.6 (192.168.1.6) 56(84) bytes of data.
From 192.168.1.4 icmp_seq=1 Destination Host Unreachable
From 192.168.1.4 icmp_seq=2 Destination Host Unreachable
From 192.168.1.4 icmp_seq=3 Destination Host Unreachable
From 192.168.1.4 icmp_seq=4 Destination Host Unreachable
From 192.168.1.4 icmp_seq=5 Destination Host Unreachable
From 192.168.1.4 icmp_seq=6 Destination Host Unreachable
^C
--- 192.168.1.6 ping statistics ---
7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6033ms
pipe 3
[loongson@localhost ~]$ ping 192.168.1.7
PING 192.168.1.7 (192.168.1.7) 56(84) bytes of data.
From 192.168.1.4 icmp_seq=1 Destination Host Unreachable
From 192.168.1.4 icmp_seq=2 Destination Host Unreachable
From 192.168.1.4 icmp_seq=3 Destination Host Unreachable
^C
同样vm4---ping---->vm1、vm4
[loongson@localhost ~]$ ifconfig eth0
eth0: flags=4163
inet 192.168.1.5 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5054:ff:fef0:dcf prefixlen 64 scopeid 0x20
ether 52:54:00:f0:0d:cf txqueuelen 1000 (Ethernet)
RX packets 55 bytes 4602 (4.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 40 bytes 3096 (3.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[loongson@localhost ~]$ ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=72.1 ms
64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=34.8 ms
64 bytes from 192.168.1.2: icmp_seq=3 ttl=64 time=35.0 ms
^C
--- 192.168.1.2 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 34.892/47.360/72.132/17.516 ms
[loongson@localhost ~]$ ping 192.168.1.4
PING 192.168.1.4 (192.168.1.4) 56(84) bytes of data.
64 bytes from 192.168.1.4: icmp_seq=1 ttl=64 time=1.10 ms
64 bytes from 192.168.1.4: icmp_seq=2 ttl=64 time=2.10 ms
64 bytes from 192.168.1.4: icmp_seq=3 ttl=64 time=1.07 ms
^C
--- 192.168.1.4 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 1.079/1.428/2.102/0.477 ms
vm5---ping--->vm2、vm6 可以通，ping vm1 vm3 vm4不通
[loongson@localhost ~]$ ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
64 bytes from 192.168.1.3: icmp_seq=1 ttl=64 time=36.4 ms
64 bytes from 192.168.1.3: icmp_seq=2 ttl=64 time=34.8 ms
64 bytes from 192.168.1.3: icmp_seq=3 ttl=64 time=35.2 ms
^C
--- 192.168.1.3 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 34.830/35.495/36.430/0.697 ms
[loongson@localhost ~]$ ping 192.168.1.7
PING 192.168.1.7 (192.168.1.7) 56(84) bytes of data.
64 bytes from 192.168.1.7: icmp_seq=1 ttl=64 time=1.96 ms
64 bytes from 192.168.1.7: icmp_seq=2 ttl=64 time=0.784 ms
^C
--- 192.168.1.7 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.784/1.375/1.967/0.592 ms
vm5 ---》ping vm1 vm3 vm4不通
[loongson@localhost ~]$ ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
From 192.168.1.6 icmp_seq=1 Destination Host Unreachable
From 192.168.1.6 icmp_seq=2 Destination Host Unreachable
From 192.168.1.6 icmp_seq=3 Destination Host Unreachable
From 192.168.1.6 icmp_seq=4 Destination Host Unreachable
^C
--- 192.168.1.2 ping statistics ---
5 packets transmitted, 0 received, +4 errors, 100% packet loss, time 4000ms
pipe 4
[loongson@localhost ~]$ ping 192.168.1.4
PING 192.168.1.4 (192.168.1.4) 56(84) bytes of data.
From 192.168.1.6 icmp_seq=1 Destination Host Unreachable
From 192.168.1.6 icmp_seq=2 Destination Host Unreachable
From 192.168.1.6 icmp_seq=3 Destination Host Unreachable
^C
--- 192.168.1.4 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4023ms
pipe 3
[loongson@localhost ~]$ ping 192.168.1.5
PING 192.168.1.5 (192.168.1.5) 56(84) bytes of data.
From 192.168.1.6 icmp_seq=1 Destination Host Unreachable
From 192.168.1.6 icmp_seq=2 Destination Host Unreachable
From 192.168.1.6 icmp_seq=3 Destination Host Unreachable
From 192.168.1.6 icmp_seq=4 Destination Host Unreachable
^C
--- 192.168.1.5 ping statistics ---
5 packets transmitted, 0 received, +4 errors, 100% packet loss, time 4001ms
pipe 4
vm6---ping--->vm2、vm5 可以通，ping vm1 vm3 vm4不通
[loongson@localhost ~]$ ifconfig eth0
eth0: flags=4163
inet 192.168.1.7 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::5054:ff:fe95:f3fe prefixlen 64 scopeid 0x20
ether 52:54:00:95:f3:fe txqueuelen 1000 (Ethernet)
RX packets 39 bytes 2154 (2.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 36 bytes 2424 (2.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[loongson@localhost ~]$ ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
64 bytes from 192.168.1.3: icmp_seq=1 ttl=64 time=35.9 ms
64 bytes from 192.168.1.3: icmp_seq=2 ttl=64 time=34.7 ms
^C
--- 192.168.1.3 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 34.701/35.304/35.907/0.603 ms
[loongson@localhost ~]$ ping 192.168.1.6
PING 192.168.1.6 (192.168.1.6) 56(84) bytes of data.
64 bytes from 192.168.1.6: icmp_seq=1 ttl=64 time=0.973 ms
64 bytes from 192.168.1.6: icmp_seq=2 ttl=64 time=1.18 ms
^C
--- 192.168.1.6 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.973/1.076/1.180/0.108 ms
[loongson@localhost ~]$ ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
From 192.168.1.7 icmp_seq=1 Destination Host Unreachable
From 192.168.1.7 icmp_seq=2 Destination Host Unreachable
From 192.168.1.7 icmp_seq=3 Destination Host Unreachable
^C
--- 192.168.1.2 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3015ms
pipe 3
[loongson@localhost ~]$ ping 192.168.1.4
PING 192.168.1.4 (192.168.1.4) 56(84) bytes of data.
From 192.168.1.7 icmp_seq=1 Destination Host Unreachable
From 192.168.1.7 icmp_seq=2 Destination Host Unreachable
From 192.168.1.7 icmp_seq=3 Destination Host Unreachable
^C
--- 192.168.1.4 ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3014ms
pipe 3
[loongson@localhost ~]$ ping 192.168.1.5
PING 192.168.1.5 (192.168.1.5) 56(84) bytes of data.
From 192.168.1.7 icmp_seq=1 Destination Host Unreachable
From 192.168.1.7 icmp_seq=2 Destination Host Unreachable
From 192.168.1.7 icmp_seq=3 Destination Host Unreachable
^C
--- 192.168.1.5 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4022ms
pipe 3
参考资料：
http://docs.openvswitch.org/en/latest/howto/vlan/