Technology (2)
VLAN
- groups of networked computers that communicate as if they were on the same physical LAN subnet
- VLAN is a logical broadcast domain
- for 2 different physical network segments or VLANs to communicate with each other, Layer 3 devices, called routers, are required
Switching
- Layer 2 switches can communicate via broadcast
- Layer 3 switches switches with routing capabilities
- Layer 4 switches allow to prioritize some vital applications