openvSwitch tunnel

ovs tunnel

實驗拓撲

實驗拓撲搭建基礎腳本

#vbox虛擬機1
ip netns add left
ip link add name veth1 type veth peer name sw1-p1
ip link set dev veth1 netns left
ip netns exec left ifconfig veth1 10.0.0.1/24 up

ovs-vsctl add-br sw1
ovs-vsctl add-port sw1 sw1-p1
ip link set sw1-p1 up

#vbox虛擬機2
ip netns add right
ip link add name veth1 type veth peer name sw2-p1
ip link set dev veth1 netns right
ip netns exec right ifconfig veth1 10.0.0.2/24 up

ovs-vsctl add-br sw2
ovs-vsctl add-port sw2 sw2-p1
ip link set sw2-p1 up

　　

GRE TUNNEL 配置

vbox虛擬機1

ovs-vsctl add-port sw1 tun0 -- set Interface tun0 type=gre options:remote_ip=10.30.10.141

　　

vbox虛擬機2

ovs-vsctl add-port sw2 tun0 -- set Interface tun0 type=gre options:remote_ip=10.30.10.145

　　

查看配置

vbox虛擬機1

root@controller-VirtualBox:~# ovs-vsctl show
29c5cc05-2a31-4f14-a304-3a697698f96a
    Bridge "sw1"
        Port "sw1"
            Interface "sw1"
                type: internal
        Port "sw1-p1"
            Interface "sw1-p1"
        Port "tun0"
            Interface "tun0"
                type: gre
                options: {remote_ip="10.30.10.141"}
    ovs_version: "2.5.2"

vbox虛擬機2

root@controller-VirtualBox:~# ovs-vsctl show
0f92aaa0-5385-48f5-a54a-644e05652f59
    Bridge "sw2"
        Port "sw2-p1"
            Interface "sw2-p1"
        Port "sw2"
            Interface "sw2"
                type: internal
        Port "tun0"
            Interface "tun0"
                type: gre
                options: {remote_ip="10.30.10.145"}
    ovs_version: "2.5.2"
root@controller-VirtualBox

　　

連通性測試,在vbox虛擬機1 left ns中ping虛擬機2 right

 

root@controller-VirtualBox:~# ip netns exec left ping 10.0.0.2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.953 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.609 ms

　　

VXLAN TUNNEL配置

vbox虛擬機1

ovs-vsctl add-port sw1 tun0 -- set Interface tun0 type=vxlan options:local_ip=10.30.10.145 options:remote_ip=10.30.10.141

vbbox虛擬機2

ovs-vsctl add-port sw2 tun0 -- set Interface tun0 type=vxlan options:local_ip=10.30.10.141 options:remote_ip=10.30.10.145

查看配置

vbox虛擬機1

 

root@controller-VirtualBox:~# ovs-vsctl show
29c5cc05-2a31-4f14-a304-3a697698f96a
    Bridge "sw1"
        Port "sw1"
            Interface "sw1"
                type: internal
        Port "sw1-p1"
            Interface "sw1-p1"
        Port "tun0"
            Interface "tun0"
                type: vxlan
                options: {local_ip="10.30.10.145", remote_ip="10.30.10.141"}
    ovs_version: "2.5.2"

　　

vbox虛擬機2

root@controller-VirtualBox:~# ovs-vsctl show
0f92aaa0-5385-48f5-a54a-644e05652f59
    Bridge "sw2"
        Port "sw2-p1"
            Interface "sw2-p1"
        Port "sw2"
            Interface "sw2"
                type: internal
        Port "tun0"
            Interface "tun0"
                type: vxlan
                options: {local_ip="10.30.10.141", remote_ip="10.30.10.145"}
    ovs_version: "2.5.2"
root@controller-VirtualBox:~#

　　

連通性測試,在vbox虛擬機1 left ns中ping虛擬機2 right

 

root@controller-VirtualBox:~# ip netns exec left ping 10.0.0.2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.905 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.490 ms
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.490/0.697/0.905/0.209 ms