Switches should be Layer 2 or Layer 3, and what's the difference. I saw that Adtran Netvanta are very expensive, but they are only Layer 2 switches. Do they provide support for the installation?<br><br>Another question I have is about 10/100/1000 Mbps. In a standard switch, ports don't actually work at 100 Mbps. But in a Netvanta grade switch, do all the ports work at 100 Mbps at all the times, or do they come down to 10 Mbps?
<br>