Bạn đang xem: The difference between a hub, switch, and router
These devices are different from each other in features & functionality, và it is important khổng lồ underst& them before making a decision. So, here is a quiông chồng overview of all three devices.
Hub: Hub is a multiport repeater. It has multiple ports that accept Ethernet connections from different network devices. It is considered as the least intelligent device as it neither filters the data, nor it knows where the data is supposed to be sent. When a data packet arrives at one of the ports, it is copied to all of the other ports connected khổng lồ it. As a result, all the devices receive sầu the data packet, even if it is not for them. There are two types of hubs – active sầu and passive. An active hub is a multi-point repeater which can regenerate signals, while a passive sầu hub is a connector which connects wires coming from other systems.Switch: A switch is smarter than a hub. Similar to the hub, it is a connection point for all the devices in the network. However, it is more efficient at passing a data packet across the network. It records the MAC addresses of the computers connected to it in a tabular format. When the data packet arrives, it reads the destination address và sends it to lớn the appropriate system rather than sending it khổng lồ all connected devices. If the destination address is not available, the switch sends the data packet to lớn all the devices across the network.Router: It is the most intelligent of the three networking devices. It is designed khổng lồ underst&, manipulate, và direct data packets based on their IPhường addresses. It connects a local area network (LANs) và wide area network (WANs) & features a dynamically updating routing table based on which they make decisions on routing data packets. When a data packet is received, it inspects the IP address & determines if the packet was meant for its network or not. If yes, then it receives the data packet, and if not then it sends it off to lớn another network.
This section explores these networking devices further. With the following points, one can have sầu a clear view of the comparison aao ước a hub, switch, and router.
Layers: The hub works on the physical layer (which is layer 1) of open system interconnection (OSI) Model, while a switch works on the data liên kết layer (layer 2) of the OSI model. The router works on the network layer of the OSI Model.Functions: As discussed earlier, a hub can connect multiple Ethernet devices as a single segment, whereas a switch can join multiple devices within one LAN. A router can links both LAN as well as WAN.Device Type: The hub is the least intelligent device as it simply passes a received data packet lớn all the devices connected lớn it. Both, the switch và router are considered as the intelligent devices as they skết thúc the received data packets lớn appropriate devices.Data Transmission Form: The data transmitted through a hub is in the size of an electrical signal or bits; through a switch, it is in the khung of frame and packet. Through a router, it is in the form of a packet.Transmission Mode: The hub uses a half-duplex mode khổng lồ exchange the data. A switch uses a half/full-duplex mode, while the transmission mode in a router is full-duplex.Address Used for Data Transmission: An Ethernet switch works based on the MAC address. This is in contrast to an Ethernet hub. On the other side, a router works based on IPhường address.
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