أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Hubs are basically layer 1 devices without any intelligence and do not separate collision or broadcast domains.
Switches are basically layer 2 (MAC addresses) with some intelligence and separate collision domains. Some switches can function at layer 3 with additional functionality.
Routers function at layer 3 and use IP addresses to separate broadcast domains.
Physical Layer --- Hub
DataLink Layer -- Switch
Network Layer --- Router