The total non-blocking throughput of a network switch refers to the maximum amount of data that can be transmitted simultaneously without any bottlenecks or congestion within the switch. It indicates the switch’s capacity to handle the aggregate traffic across all its ports. In a non-blocking switch, the switching fabric (internal architecture) is designed in such…
Author: abnadmin
VLAN
A VLAN (Virtual Local Area Network) is a virtual network created within a network switch. It allows you to logically divide a physical network into multiple isolated broadcast domains, even though the devices may physically be connected to the same switch. VLANs provide several benefits, including improved network security, enhanced performance, and simplified network management….
Post 3: Routers
Last week we explored the features of combination routers, switches, and wireless access points. Over the next 3 weeks, we will look at building a more powerful modular network, with a separate router, wireless access point, and a switch. We will begin by examining the router, which is the central device responsible for regulating the…
OpenVPN
OpenVPN is an open-source virtual private network (VPN) protocol and software application that provides secure and encrypted communication over untrusted networks, such as the internet. It is widely used for creating secure connections between remote users or branch offices and a central network infrastructure. OpenVPN uses a client-server architecture, where the OpenVPN server is installed…
Dual-WAN
Dual-WAN (Wide Area Network) refers to a networking setup or feature that allows a device, typically a router, to simultaneously utilize two separate WAN connections for internet connectivity. WAN connections are typically provided by Internet Service Providers (ISPs) and can include technologies such as Ethernet, DSL, cable, fiber optic, or wireless connections. In a dual-WAN…
Computer Racks
A computer rack, also known as a server rack or equipment rack, is a specialized enclosure or framework designed to hold and organize various IT equipment, servers, networking devices, and other electronic components. It provides a centralized and structured environment for housing and managing these devices. A computer rack typically consists of a metal frame…
Switch Chips
A switch chip, also known as an Ethernet switch chip or network switch chip, is an integrated circuit (IC) designed specifically for network switches. It provides the necessary functionality to enable the routing and switching of data packets between different network devices connected to the switch. In the context of a router, a switch chip…
PoE – Power Over Ethernet
PoE, PoE+, and Passive PoE are different implementations of Power over Ethernet (PoE) technology, which allows electrical power to be transmitted along with data over Ethernet cables. This eliminates the need for separate power cables and simplifies the installation of network devices. It’s important to note that when using PoE or PoE+, you need compatible…
Post 2: All-In-One Router Wi-Fi devices
This week we will examine some combo routers, switch, and wireless devices, comparing various capabilities and brands. I’ll include the Eero router, which is often part of a special package from MetroNet, a fiber provider installing service in my area currently. It is an NSA Best Practice to own your own router, so we will…
iPhone Wi-Fi Capabilities
Starting with the iPhone XR and up to the most recent models, Apple’s iPhones support both Wi-Fi 5 (802.11ac) and Wi-Fi 6 (802.11ax) standards. It’s worth noting that even if an iPhone supports Wi-Fi 6, the actual performance benefits will depend on the network infrastructure and the capabilities of the router or access point it…