Switches are networking devices operating at layer 2 or a data link layer of the OSI model. They connect devices in a network and use packet switching to send, receive or forward data packets or data frames over the network. Show A switch has many ports, to which computers are plugged in. When a data frame arrives at any port of a network switch, it examines the destination address, performs necessary checks and sends the frame to the corresponding device(s).It supports unicast, multicast as well as broadcast communications.  Features of Switches
Types of SwitchesThere are variety of switches that can be broadly categorised into 4 types −
Updated on 22-Jul-2020 08:38:38
A network switch connects devices in a network to one another and enables them to “speak” by exchanging data packets. Examples of these devices include computers, printers, and wireless access points. Switches can be software-based virtual devices or hardware devices that control physical networks. In this article, we will look more into Switch in Computer Networks according to the GATE Syllabus for (Computer Science Engineering) CSE. We will read ahead to find out more about it. Table of Contents
What is a Switch in a Computer Network?Switches refer to the networking devices that operate at an OSI model’s layer 2 or data link layer. They establish connections between networked devices and employ packet switching to transmit, receive, or forward data packets or frames over the network. There are numerous ports on a switch where computers can be connected. A network switch evaluates the destination address of each data frame that enters one of its ports, runs any necessary checks, and then sends the frame to the appropriate device(s). It enables broadcast, multicast, and unicast communications. Features of Switches
Types of SwitchesThere are several switches that fall into one of the following four categories: Unmanaged SwitchThese affordable switches are frequently used in small enterprises and household networks. They are easy to set up, and once connected to the network, they are ready to use right away. This plug-and-play approach makes it easy to add more switches when new devices need to be added. Since they don’t need to be configured or monitored, they are referred to as “unmanaged.” Managed SwitchSince the managed switches can be tailored to add functionality to a regular switch, these expensive switches are used in organisations with large and complicated networks. The added features could include QoS (Quality of Service) enhancements, including more precise control, stronger security standards, and total network administration. They are valued in expanding organisations despite their expense because of their scalability and adaptability. Switches that are monitored are configured using the Simple Network Management Protocol (SNMP). LAN SwitchDevices connected to a company’s internal LAN are connected by LAN switches. They are also known as data switches or Ethernet switches. These switches are very useful for easing network bottlenecks or congestion. They do this in a way that prevents data packets in a network from overlapping. PoE SwitchIn PoE Gigabit Ethernets, Power over Ethernet (PoE) switches are used. Devices linked to it can receive both energy and data over the same line due to PoE technology, which combines data and power communication over the same connection. PoE switches provide more flexibility and make cable hookups easier. Keep learning and stay tuned to get the latest updates on GATE Exam along with GATE Eligibility Criteria, GATE 2023, GATE Admit Card, GATE Syllabus, GATE Previous Year Question Paper, and more. Also Explore,
What is the role of a switch in network?A network switch forwards data packets between devices. Switches send packets directly to devices, rather than sending them to networks like a router does.
What is switch in computer network class 10?What is a Switch in a Computer Network? Switches refer to the networking devices that operate at an OSI model's layer 2 or data link layer. They establish connections between networked devices and employ packet switching to transmit, receive, or forward data packets or frames over the network.
What is the role of a switch in a network Class 12?A switch is a networking device (Figure 10.12) that plays a central role in a Local Area Network (LAN). Like a hub, a network switch is used to connect multiple computers or communicating devices.
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