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VxLAN configuration in OpenSwitch
Configuration example
Configure VTEP 1:
Setting loopback interface 1 as VxLAN source interface.
switch# configure terminal switch(config)# vxlan source-interface loopback 1
Configure IP address of loopback interface 1.
switch(config)# interface loopback 1 switch(config-loopback-if)# ip address 1.1.1.1/32
Create VLAN 100 and VNI 1000, binding VLAN 100 to VNI 1000
switch(config)# vlan 100 switch(config-vlan)# no shutdown switch(config-vlan)# exit switch(config)# vni 1000 switch(config-vni)# vlan 100
Configure interface 1 to VLAN access mode and access VLAN to 100
switch(config)# interface 1 switch(config-if)# no routing switch(config-if)# vlan access 100
Create VxLAN tunnel 1 and binding to VNI 1000
switch(config)# interface tunnel 1 mode vxlan switch(config-vxlan-if)# vxlan-vni 1000 switch(config-vxlan-if)# destination ip 2.2.2.2
Configure default route to destination IP 2.2.2.2.
switch(config)#interface 49 switch(config-if)#no shutdown switch(config-if)#autonegotiation off switch(config-if)#ip address 192.168.1.1/24 switch(config-if)#exit switch(config)#ip route 0.0.0.0/0 192.168.1.2
Configure VTEP 2:
Setting loopback interface 1 as VxLAN source interface.
switch# configure terminal switch(config)# vxlan source-interface loopback 1
Configure IP address of loopback interface 1.
switch(config)# interface loopback 1 switch(config-loopback-if)# ip address 2.2.2.2./32
Create VLAN 100 and VNI 1000, binding VLAN 100 to VNI 1000
switch(config)# vlan 100 switch(config-vlan)# no shutdown switch(config-vlan)# exit switch(config)# vni 1000 switch(config-vni)# vlan 100
Configure interface 1 to VLAN access mode and access VLAN to 100
switch(config)# interface 1 switch(config-if)# no routing switch(config-if)# vlan access 100
Create VxLAN tunnel 1 and binding to VNI 1000
switch(config)# interface tunnel 1 mode vxlan switch(config-vxlan-if)# vxlan-vni 1000 switch(config-vxlan-if)# destination ip 1.1.1.1
Configure default route to destination IP 2.2.2.2.
switch(config)#interface 49 switch(config-if)#no shutdown switch(config-if)#autonegotiation off switch(config-if)#ip address 192.168.1.2/24 switch(config-if)#exit switch(config)#ip route 0.0.0.0/0 192.168.1.1
OpenSwitch HW-VTEP configuration
Application example
Setting loopback interface 1 as VxLAN source interface.
switch# configure terminal switch(config)# vxlan source-interface loopback 1
Configure IP address of loopback interface 1.
switch(config)# interface loopback 1 switch(config-loopback-if)# ip address 1.1.1.1/32
Set interface 1 and as access port
switch(config)# interface 1 switch(config-if)# no shutdown switch(config-if)# no routing switch(config-if)# interface 2 switch(config-if)# no shutdown switch(config-if)# no routing
Configure default route
switch(config)#interface 49 switch(config-if)#no shutdown switch(config-if)#autonegotiation off switch(config-if)#ip address 192.168.1.1/24 switch(config-if)#exit switch(config)#ip route 0.0.0.0/0 192.168.1.2
Configure VXLAN via tool ‘vtep-ctl’ in Linux shell
root@switch:~# vtep-ctl add-ls ls0 root@switch:~# vtep-ctl set Logical_Switch ls0 tunnel_key=1000
Check vxlan status with command “show vxlan” in vtysh
switch# show vxlan VxLAN source interface: lo1 VxLAN source IP address: 1.1.1.1 VNID VLAN Tunnel Remote VTEP ----------------------------------------------- 1000 N/A
Add three remote mac address and binding to remote tunnel
root@switch:~#vtep-ctl add-ucast-remote ls0 00:00:00:00:00:aa 2.2.2.2 root@switch:~#vtep-ctl add-ucast-remote ls0 00:00:00:00:00:ab 2.2.2.2 root@switch:~#vtep-ctl add-ucast-remote ls0 00:00:00:00:00:ac 2.2.2.3
Check VXLAN tunnel status with command ‘show vxlan tunnel’ in vtysh
switch# show vxlan tunnel Tunnel VNID Local IP Remote IP Status ---------------------------------------------------------------- tunnel1 1000 1.1.1.1 2.2.2.2 up tunnel2 1000 1.1.1.1 2.2.2.3 up
Check VXLAN tenant system status with command ‘show vxlan tenant-system’ in vtysh
switch# show vxlan tenant-system Number of MAC addresses : 3 MAC Address VNID Type Port ------------------------------------------------------- 00:00:00:00:00:ab 1000 hw-vtep tunnel1 00:00:00:00:00:aa 1000 hw-vtep tunnel1 00:00:00:00:00:ac 1000 hw-vtep tunnel2
Binding port 1 to vlan 100 and vnid 1000
root@switch:~# vtep-ctl bind-ls switch 1 100 ls0
Check VXLAN status with command ‘show vxlan’ in vtysh
switch# show vxlan VxLAN source interface: lo1 VxLAN source IP address: 1.1.1.1 VNID VLAN Tunnel Remote VTEP ----------------------------------------------- 1000 100 tunnel1 2.2.2.2 tunnel2 2.2.2.3
Insert un-tagged packet to interface 1
After inserting un-tagged packet to interface 1, check VXLAN tenant-system with command ‘show vxlan tenant-system” in vtysh
root@switch:~# vtysh switch# show vxlan tenant-system Number of MAC addresses : 7 MAC Address VNID Type Port ------------------------------------------------------- 00:00:00:00:00:ab 1000 hw-vtep tunnel1 00:00:00:00:00:aa 1000 hw-vtep tunnel1 00:00:00:00:00:de 1000 vxlan 1 00:00:00:00:00:dd 1000 vxlan 1 00:00:00:00:00:ac 1000 hw-vtep tunnel2 00:00:00:00:00:df 1000 vxlan 1
Check hardware_vtep db Ucast_Macs_Local table
root@switch:~# ovsdb-client dump hardware_vtep Ucast_Macs_Local Ucast_Macs_Local table MAC _uuid ipaddr locator logical_switch ------------------- ------------------------------------ ------ ------------------------------------ ------------------------------------ "00:00:00:00:00:dd" 36616e07-d0ff-4296-bd9e-a86260af5533 "" 274589f8-1e9c-47ac-aaee-e733aca3bcc3 834a056f-cd6b-4587-b8b7-be3b2aedd940 "00:00:00:00:00:de" ced9c40d-3c4a-4b69-ad47-1f29596fdead "" 274589f8-1e9c-47ac-aaee-e733aca3bcc3 834a056f-cd6b-4587-b8b7-be3b2aedd940 "00:00:00:00:00:df" 62ca2f88-6eb0-44c7-a6a8-ad69cc995d6d "" 274589f8-1e9c-47ac-aaee-e733aca3bcc3 834a056f-cd6b-4587-b8b7-be3b2aedd940
