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Dot1q tunneling and security

Hi,

I don't understand how to make to improve the security of dot1q tunneling. If the client makes some errors by example by disabling the spanning-tree on a vlan and he creates a loop between differents sites (L2VPN). What are the safety standards for Q-in-Q to protect the provider ?

Thank you for your help.

Regards.

David

 

 

 

 

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