![]() For most wired networks, switches may work well in terms of budget and functionality. Both switches and routers are available in varied configurations. While a hub may not even be considered for today’s business networks, the choice largely remains between switches and routers. Making the right choice depends on your application requirement, network complexity, budget, and many other factors. The routers facilitate inter-VLAN communication, while switches allow inter-device communication on the same VLAN.īeyond layer 2 switches and routers, layer 3 switches are also developed and used an integrated approach to switching and routing. However, if a device on layer 2 wants to connect with one on layer 3, routers are used. This makes it easy for layer 2 devices to communicate without any external components. Switches split a LAN into multiple virtual LANs. Both these devices are useful for VLANs or virtual LAN networks. Since virtual networks are gaining traction, the demand for both switches and routers has gone up. Routers can be used in wired and wireless networks, while switches are typically designed for wired networks. A switch can join multiple devices in a LAN.Īn Ethernet switch transmits data based on the MAC address, however, a router routes data packets across networks based on the IP address. The router works on the network layer of the OSI model, while the switch works on data link layer.Ī router can link both LAN as well as WAN, and transmit data to other connected networks. A switch uses a half/full-duplex mode.Ī hub transmits data in the form of an electrical signal or bits, while a switch sends it in the form of frame and packet. The hub uses a half-duplex mode to exchange the data. However, a switch can join multiple devices in one LAN. It forwards the message to the right device.Ī hub can connect two or more devices on LAN via Ethernet. ![]() A switch can identify the destination by reading the header on the data packet. It sends a data packet to all the devices on the network, and the devices then filter and accept or reject that packet. While a hub can connect multiple Ethernet devices as a single segment, it cannot filter a data packet and forward it to the right device or destination. A switch, on the other hand, works on the data link layer (layer 2) of the OSI model. This was widely used earlier when virtual connectivity was not required. A hub is quite primitive and works on the physical layer (which is layer 1) of open system interconnection (OSI) model.
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