I've been configuring VLANs on our network, and have run into a bit of a problem. So far I have a 3com 3950 which is a layer 3 switch, and 3com 4226 which i believe is only layer 2. Main network ...

I've got a problem, I've been trying to implement some layer2 security on our switches with Port-Security, only allowing 2 MAC addresses on any 1 switchport. I've been looking at some of our switches ...

This IP lesson will focus on layer two switches, which are almost exclusively Ethernet switches. We’ll also consider how they are used to implement virtual local area networks (VLANS). Figure 1: L2 ...