openvswitch实践二 vxlan隧道互联互通

1.试验环境

 2.试验配置

2.1 host 172.16.0.100 配置

ovs-vsctl add-br br1

ovs-vsctl add-br br2

ovs-vsctl add-port br1 tap1 -- set Interface tap1 type=internal

ovs-vsctl add-port br2 tap2 -- set Interface tap2 type=internal

ip netns add ns1

ip netns add ns2

ip link set tap1 netns ns1

ip link set tap2 netns ns2

ip netns exec ns1 ip addr add 1.1.1.1/24 dev tap1

ip netns exec ns1 ip link set tap1 up

ip netns exec ns1 ip link set lo up

ip netns exec ns2 ip addr add 1.1.1.2/24 dev tap2

ip netns exec ns2 ip link set tap2 up

ip netns exec ns2 ip link set lo up

ovs-vsctl add-port br1 patch-ovs-1 -- set Interface patch-ovs-1 type=patch options:peer=patch-ovs-2

ovs-vsctl add-port br2 patch-ovs-2 -- set Interface patch-ovs-2 type=patch options:peer=patch-ovs-1

2.2 host172.16.1.75 配置

ovs-vsctl add-br br1

ovs-vsctl add-br br2

ovs-vsctl add-port br1 tap1 -- set Interface tap1 type=internal

ovs-vsctl add-port br2 tap2 -- set Interface tap2 type=internal

ip netns add ns1

ip netns add ns2

ip link set tap1 netns ns1

ip link set tap2 netns ns2

ip netns exec ns1 ip addr add 1.1.1.3/24 dev tap1

ip netns exec ns1 ip link set tap1 up

ip netns exec ns1 ip link set lo up

ip netns exec ns2 ip addr add 1.1.1.4/24 dev tap2

ip netns exec ns2 ip link set tap2 up

ip netns exec ns2 ip link set lo up

ovs-vsctl add-port br1 patch-ovs-1 -- set Interface patch-ovs-1 type=patch options:peer=patch-ovs-2

ovs-vsctl add-port br2 patch-ovs-2 -- set Interface patch-ovs-2 type=patch options:peer=patch-ovs-1

2.3 vxlan通道配置

host 172.16.1.75

ovs-vsctl add-port br1 vx1 -- set interface vx1 type=vxlan options:remote_ip=172.16.0.100 options:key=100

host 172.16.0.100

ovs-vsctl add-port br1 vx1 -- set interface vx1 type=vxlan options:remote_ip=172.16.1.75 options:key=100

3.试验验证

3.1 ping验证

 3.2 抓包验证

4 vxlan tunnel 补充

# key=flow的话,表示该port的vni可以通过openflow的actions来进行设置
# 如: actions=set_field:100->tun_id
# 或: actions=set_tunnel:100
ovs-vsctl add-port ovs0 vxlan0 -- set interface vxlan0 type=vxlan options:remote_ip=10.10.10.1 options:key=flow  

指定flow流表进行转发

host 172.16.1.75

ovs-vsctl add-port br1 vx1 -- set interface vx1 type=vxlan options:remote_ip=172.16.0.100 options:key=flow

ovs-ofctl dump-ports-desc br1
OFPST_PORT_DESC reply (xid=0x2):
 1(tap1): addr:00:00:00:00:00:00
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
 2(patch-ovs-1): addr:62:91:1f:1e:59:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vx1): addr:46:29:c3:cc:f2:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br1): addr:36:10:88:95:d2:ea
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max

ovs-ofctl add-flow br1 'cookie=0x79, table=0, in_port=1, priority=1 actions=set_tunnel:200,output:4'

host 172.16.0.100

ovs-vsctl add-port br1 vx1 -- set interface vx1 type=vxlan options:remote_ip=172.16.1.75 options:key=flow

ovs-ofctl add-flow br1 'cookie=0x79, table=0, in_port=1, priority=1 actions=set_tunnel:200,output:6'


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