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A switch, in the context of computer networking, is a device that connects multiple devices in a local area network (LAN) and forwards data packets between them. It operates at the data link layer (Layer 2) of the OSI (Open Systems Interconnection) model. A switch intelligently routes network traffic based on the MAC (Media Access…
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In computer networking, a modem (short for modulator-demodulator) is a device that enables communication between a computer or other network devices and an internet service provider (ISP) or a telecommunications network. It serves as a bridge between the digital signals generated by computers and the analog signals used by traditional telephone lines or cable systems.A…
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A network hub is a device used in computer networking to connect multiple devices together in a local area network (LAN). It serves as a central connection point for devices to communicate with each other.Hubs were widely used in the past, they have been largely replaced by network switches. Switches offer improved performance, security, and…
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A network gateway is a device or software that serves as an entry point or connection between different networks. It acts as a translator, mediator, and controller, facilitating communication between networks that may use different protocols or have different architectures. The main purpose of a network gateway is to enable data transfer and provide access…
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A Network Load Balancer (NLB) is a component used in computer networking to distribute incoming network traffic across multiple servers or resources, ensuring that the workload is evenly distributed. It plays a crucial role in improving the availability, scalability, and reliability of network-based services. There are generally two types of Network Load Balancers:Layer 4 Load…
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NIC stands for Network Interface Card. It is a hardware component that enables a computer to connect to a network and communicate with other devices. NICs are also commonly referred to as network adapters or network cards.Physically, a NIC consists of a printed circuit board (PCB) with various electronic components mounted on it. The card…
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The cabling and connections in a network refer to the physical infrastructure that allows devices to communicate with each other. There are various types of cabling and connections used in networks, depending on the network type and requirements. Cabling and connections depends on factors such as network requirements, distance, bandwidth needs, and cost considerations. Network…
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Network devices support a wide range of physical network interfaces, depending on the specific device model and series. Here are some commonly used physical network interfaces: Ethernet Interfaces: Network devices often include Ethernet interfaces for connecting to local area networks (LANs) and wide area networks (WANs). Ethernet interfaces can support different speeds such as 10/100…
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The network physical infrastructure layout refers to the physical components and arrangement of a network system. It includes various devices, cables, connectors, and other equipment that are necessary for establishing and maintaining network connectivity. Here is an in-depth description of the typical network physical infrastructure layout: Network Room or Data Center The network room or…