Tag Archives : layer 2

You know how sometimes you plug in everything, configure device / ports and then the un-expected result is “not working”. Then you start to troubleshoot, which is a good point, but very important is where are you looking for the root cause of your issue. A lot of people who have communication...

Layer 2 traffic filtering can be very useful when you want to drop packets closer to the source because you can do this on L2 next-hop which is the switch where the devices are connected. Based on mac-address, Layer 2 filtering can be apply using one of the two most common method: Port Security and MAC...

Let’s say that somebody (or some task in a test) ask you to limit the inbound traffic on a switch Layer 2 port by using minimal configuration possible. I must say that in the first steps I failed this task miserable, but actually is very simple to do it. I will use a plain layer 2 Cisco 2950 switch...