Layer 2 interface - block traffic

[davide0089]

Hi,

Is it possible to block outbound traffic on a layer 2 interface? While still allowing incoming traffic? If so, which commands would I use?

In essence, I want to place two ports on the same VLAN, where one port accepts traffic and the other sends traffic.

Thanks,

Davide

[amabdelh]

It can be done using this command
switchport unicast unicast suppression level
And the same for multicast and broadcast, but not sure why do you want to do that? And i believe it is not gonna work. You need to keep STP in you mind and it will block one of the ports

Sent from Cisco Technical Support iPhone App

[davide0089]

Thanks

[Iker Santamaria Molla]

Hi Davide,

If I understand what you'll want to make, I recommend you read about "PRIVATE VLANS", it could be whatever you're looking for.

In this way you could separate ports in different vlans without worrying about STP.

http://en.wikipedia.org/wiki/Private_VLAN

http://blog.ine.com/2008/01/31/understanding-private-vlans/

Regards.