you can use
*"l2protocol-tunnel cdp" on the interface.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12240se/scg1/swtunnel.htm
this is configuration guide for QinQ.
*
On 11/4/07, CCIE <ccie@xxxxxxxxx> wrote:
>
> R1===SW1==trunk===SW2====R2
>
>
>
> Both R1 and R2 in the same VLAN, how I could tunnel CDP so I may see R2
> from
> R1?
>
>
>
>
>
>
>
> Regards,
>
> Amin
>
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