Networking Devices

Network Devices Hub: Repeats signals received on each port by broadcasting to all the other connected ports. Repeaters: Use to connect two or more Ethernet segments of any media type, and to provide signal amplification for a segment to be extendeds. Bridge: It’s a layer 2 device used to connect different networks types or networks of the same type. Maps the Ethernet addresses of the nodes residing on each segment and allows only the necessary traffic to pass through the bridge. Switch: It’s a layer 2 devices and use for linking the networks. Available in two types i.e. Cut-through switches and store-and-forward switch. Cut-through switches forwards it right after looking at the destination address only and store-and-forward switch inspects the entire packet before forwarding. Routers: Filter out network traffic. Protocols must be routable in order to pass through the routers. Also determine the most efficient path for a packet to take and send packets around failed segments. Brouter: The best features of routers and bridges in that it can be configured to pass the non-routable protocols. Gateway: Used as a connection to a mainframe or the internet. Enable communications between different protocols, data types and environments. Operate at all layers of the OSI model.