QinQ troubleshooting

[AndrasSz]

Hello guys,

I'm trying to configure QinQ in my lab.
Below you can see topoligy. Somehow its not working, even tough I've followed several tutorials.

The relevant configs:

R1#
interface Ethernet0/0.12
encapsulation dot1Q 12
ip address 10.0.0.1 255.255.255.0

R2#
interface Ethernet0/0.12
encapsulation dot1Q 12
ip address 10.0.0.2 255.255.255.0

SW1#
interface Ethernet0/0
switchport access vlan 200
switchport mode dot1q-tunnel

interface Ethernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk

SW2#
interface Ethernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk

interface Ethernet0/3
switchport trunk encapsulation dot1q
switchport mode trunk

SW3#

interface Ethernet0/3
switchport trunk encapsulation dot1q
switchport mode trunk

interface Ethernet0/0

switchport access vlan 200
switchport mode dot1q-tunnel

Can you  please help me complete this lab?

[Rich Uline]

Andras,

Does VLAN 200 connect all the way through from Switch 1 to Switch 3 (presumably R3 to R5 in the image)? Issue the 'sh int trunk' command on each switch. Ensure that VLAN 200 is listed next to the desired trunk port under the section "VLANs in spanning-tree forwarding state and not pruned". If it is not listed then that VLAN is not allowed on the trunk. It could be that the VLAN was not created on one or more of the switches.