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New Member

QinQ and Internal Vlan !!!

Hi dear All !!!
I have C7609 with ES20.
So, I have created QinQ subinterfaces for solve problems with 4094 Vlans.
But when I typed "sh vlan internal usage", I see internal vlan one per subinterface !!!
And really, I cannot create simple Vlan.
----cut !!! ----
interface Port-channel16.322480
 encapsulation dot1Q 322 second-dot1q 480
 ip address x.x.x.x y.y.y.y
R#sh vlan internal usage | i Port-channel16.322480
1481 Port-channel16.322480
R#(config)#vlan 1481
VLAN id: 1481 is an internal vlan id - cannot use it to create a VTP VLAN.
----cut !!! ----


Here's a good link for

Here's a good link for QinQ

New Member

Hi Michael !!!Thank you very

Hi Michael !!!
Thank you very much for your answer!

I have read your topic, but I spoke about "QinQ termination" (stacked VLAN processing)

not about selective QinQ. 3750 cannot do it :-(

The QinQ is L2 technology, but "QinQ termination" is L3.

Understood. Maybe this link

Understood. Maybe this link will help you:

New Member

Thank you Mchael !I began my

Thank you Mchael !
I began my learning EVC from this blog. It's very nice theme but I have more deep problems.

I'm planing to create more 7K QinQ subinterfaces, but every subinterface create new internal vlan and I have limit 4096 again  :-(


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