Re: dot1q tunneling

From: ccie anees (ccieanees@yahoo.com)
Date: Tue Dec 19 2006 - 18:56:14 ART

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Hi Jay,
    I am not sure about the issue. But regarding BPDU..
  When a port is configured as an IEEE 802.1Q tunnel port, spanning-tree bridge protocol data unit (BPDU) filtering is automatically enabled on the interface.

  Thanks,
   
  
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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