[c-nsp] Unable to transmit tagged frames over q-in-q tunnel

Keegan Holley keegan.holley at sungard.com
Thu Oct 27 13:08:37 EDT 2011


I wasn't the original poster. :) The PE platform and configuration is
important here though.  It has to know to send double tagged frames from the
remote end. I know for Juniper PE routers we have to turn on q-tunneling on
the switch to get it to work for example.


2011/10/27 Laurent Geyer <lgeyer at gmail.com>

>
>
> On Thu, Oct 27, 2011 at 12:41 PM, Keegan Holley <keegan.holley at sungard.com
> > wrote:
>
>> Your diagram got mangled.  I think your PE facing interface has to be a
>> tunnel as well depending on the type of router you are connected to.
>
>
> Assuming that the user port was an access port for vlan 1006 before,
> nothing would really have to change on the PE configuration.
>
> The dot1q-tunneling configuration simply stacks a Vlan 1006 tag on top of
> the frames received from the user port. For all intends and purposes
> everything else stays the same.
>
> Keegan - Your configuration looks fine, are you 100% sure that the customer
> is sending tagged frames?
>
> - Laurent
>


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