Short for
port-switching hub, a special type of
hub that forwards
packets to the appropriate
port based on the packet's address. Conventional hubs simply rebroadcast every packet to every port. Since switching hubs forward each packet only to the required port, they provide much better performance. Most switching hubs also support
load balancing, so that ports are dynamically reassigned to different LAN
segments based on traffic patterns.
Some newer switching hubs support both traditional Ethernet (10 Mbps) and Fast Ethernet (100 Mbps) ports. This enables the administrator to establish a dedicated, Fast Ethernet channel for high-traffic devices such as servers.