From: Jian Gu (guxiaojian@gmail.com)
Date: Tue Dec 19 2006 - 15:47:21 ART
Look at q-in-q frame format, you will find that the answer is obvious. SP
switches can not create MAC addresses out of nowhere.
On 12/19/06, jay buss <ccie_sp@hotmail.com> wrote:
>
> Hi guys,
>
> I have 4 switches:
>
> customerswitch-switch1--switch2--switch3--switch4-customerswitch
>
> Switch1-dot1qtunnel and SP vlan = 100
> switch4-dot1qtunnel ans SP vlan = 100
>
> l2pt cdp etc is configured..
>
> The l2pt tunneling of cdp etc works.. But i also see the customer
> mac-addresses on switch2.
> What part am I missing. I think that switch2 should only see the SP vlan
> 100,
> since the customer traffic (trunk or no trunk) should be encapsulated
> (dot1q-in-dot1q)..
>
>
> Should I use a bpdu filter on switch1 and switch4 towards the
> customerswitch
> ?
>
> Thanks
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