Chapter Summary Continued
Bridges provide network segmentation by examining the MAC address in the data packet. Bridges can use transparent bridging or source-route bridging to determine which segment includes a specific network address.
Switching hubs increase network performance by reducing the number of packets transmitted to the rest of the network. They do this by opening a virtual circuit between the source and the destination.
Routers operate at the Network layer of the OSI protocol stack and provide filtering and network traffic control.