Introduction to the Types of Network Devices

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We’ll be discussing the various types of network devices in this post. But first, let’s define what a network device actually is. Network devices can be described as hardware devices. They link computers, printers, and faxes to the network. These devices can quickly, safely, and accurately transfer data across one or more networks. There may be inter-network and intra-network devices. Some devices, such as the NIC Card or the connector RJ45, are mounted on the device while others are a component of a network such as a router or switch. Let’s take a closer look at these phones. A modem is a device that sends and receives data via phone lines or cable lines. It can be connected to a computer.

Digital data is stored on the device, while analog data can be transmitted by a telephone line or cable wire. The modem converts the digital signal to analog. The combined Modem consists of two devices, the modulator, and the modulator. The processor sends data to the modulator, which converts digital data into analog. Digital data is converted into analog signals when the demodulator on the processor is received.

Different types of network devices

Let’s take a look at the different types of network devices as well as their working.

Access Point

A wired or wireless link can be technical in an AP. However, it is usually a wireless device. The second OSI layer is the data link layer. An AP can be a bridge between a standard wireless network and wireless devices, or a router that sends data to other access points. Wireless connectivity points (WAPs), are devices that can be used to create a wireless network (WLAN) transmitter or receiver. Access points are typically separate, networked machines that have an integrated antenna, transmitter, and adapter.

APS uses wireless infrastructure network mode to link WLAN and wired Ethernet Lan. You can extend your network to accommodate other customers by using multiple ports. Depending on the network’s size, one or more APs might need full coverage. APSAPs can also offer multiple ports that can be used for increasing the network’s size and capabilities, such as firewalls or DHCP. We get switch-based APs and DHCP servers. Firewall, router, and router.


Routers enable packets to be sent to their destination by monitoring the network topologies of many networking devices. Routers can be smart devices that store information about the networks they are connected to. Most routers are capable of acting as firewalls for packet filters, and can also use ACLs. In conjunction with the network control/data service unit (CSU/DSU), routers can also be used to convert LAN toWAN framing. These routers are known as boundary routers.

They act as an external link from your LAN to Awan and are located on your network boundaries. The management of local connections and destination tables is how routers communicate with each other. If the destination is not known, the router will send requests and give data to the linked systems. Routers are your first line of defense. Only traffic that has been approved by network administrators can pass.


Hubs connect various networking devices. The network acts as an amplifier by amplifying signals over long distances. A hub is the most common member of the network communication family. It links LAN components using the same protocols. A server can accept digital or analog data, provided that it is configured to format the incoming data. Hubs don’t process or address packets, they simply send data packets to all connected devices. We only send data packets. Hubs work on the Open Systems Interconnection physical layer. There are two types of hubs: one simple and one multiple.

There are two types:

Active Hub

Passive Hub

Active HUB: These hubs can clean, raise, and distribute the signal along with the network with their power supply. It can be used as both a repeater and a cable hub. You can increase the distance between nodes.

Passive Hub: These hubs collect electricity and cable from active network nodes. These hubs transmit signals to the grid, but they cannot be cleaned or improved. Also, the distance between nodes cannot be increased.


Bridges connect two or more hosts or network segments. The key roles of the network architecture are bridge processing and the transfer of frames among the different bridge links. Media Access Control (MAC), hardware is used to transmit images. Bridges can transmit data or block crossing by checking the MAC addresses of the devices connected to each line. You can also connect two physical networks to create a larger theoretical network using bridges. Bridges can only be used on OSI layers Physical or Data Link. Bridges can be used to divide large networks by placing two segments of the network at once and managing data flow between them.

Bridges can be thought of as hubs. They link LAN components to the exact same protocols. Frames, also known as bridges, filter data packets before they are sent. When it filters data packets using a dynamic bridge table, the bridge does not alter the content or format of the incoming data. The bridge also forwards frames to the network. Each LAN computer’s address is preserved in the bridge table, as well as the addresses of bridge interfaces that link the LANs.


Gateways are used to manage the transportation and session layers of an OSI model. Gateways are responsible for managing the specifications and guidelines that different vendors have to follow at the transport layer. Gateways support the connection between different networking technologies such as OSI, and Transmission Control Protocol / Internet Protocols (such as TCP/IP). Gateways connect two or more networks that are self-contained and have their own topology, protocol, topology, policy, and domain name system. Gateways can handle all routing functions, and more. A gateway is actually an additional translation router. The protocol converter is a feature that can translate between different network technologies.


Switches are smarter than hubs. The network’s capacity is increased by a switch. The switch provides links to other systems, such as routers and hubs. Switches are used to link LAN beaches. Switches can read packets’ hardware addresses and transfer them to their destinations. Because of the flexibility and reliability of the digital circuit, switches can improve the Network’s effectiveness. Because digital circuits are easier to examine, switches also increase network protection.

A switch is a system that integrates the best routers with hubs. A switch can be used on either the OSI model’s interface Data Link or its network layer. Multi-layer switches can operate in both the OSI model’s network layer and interface Data Link. This allows both a switch and router to work together. Multilayer switches are high-performance switches that use the same routing protocols as routers. Flood controls can be used in order to stop malicious traffic from blocking the switch. It is important to protect the Switch port. DHCP, ARP, and MAC Address Filtering can be used to ensure that stable switches are maintained.


Digital signals can be transmitted over analog phone lines by modems (modulator-demodulators). The modem converts the digital signals into analog signals at various frequencies and sends them to the modem at the receiver location. The receiving modem does the opposite and sends a digital signal to a device connected to a modem. Digital data is sent via the RS-232 interface to or from a serial-line modem in most cases. Many phone companies offer DSL services, as well as modems that are used by cable operators to locate and remember their clients and homes. Modems are used to operate all data and physical link layers.


Bridging routers are devices that combine both router and bridge features. It can be used at the data connection layer as well as the network layer. It acts as a router and bridge to route packets between networks.


This article has covered a variety of network devices. You can create and maintain a secure network that works for your company by having a good understanding of the different types of network devices. To ensure safety and reliability, your network must be monitored closely to detect and fix any problems quickly.

kavya Sharma

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