Router-Switch Tech Journal

Main Types of Computer Networks You Should Know Computer networks are usually classified based on coverage area and usage scenario . Understanding these types helps you design or manage networks more effectively. LAN (Local Area Network): Used in homes, offices, and schools for fast local connectivity WLAN (Wireless LAN): Adds Wi-Fi access for mobile devices WAN (Wide Area Network): Connects networks across long distances CAN (Campus Area Network): Links multiple LANs within a campus MAN (Metropolitan Area Network): Covers city-level networking needs There are also specialized networks such as SAN for storage, PAN for personal devices, and VPN for secure remote access. Each network type solves a different problem, and most real-world environments use more than one at the same time. For a more detailed explanation with structured examples, you can read the full guide here:  Types of networks: Main 5 types of computer networks

How to Factory Reset a Juniper Switch (EX, QFX, SRX) If you need to reset a Juniper switch because of a forgotten password, old configuration, or second-hand hardware, performing a factory reset is often the fastest and safest solution. This guide explains how to factory reset Juniper EX, QFX, and SRX switches , what each reset method actually does, and what to expect after the reboot. It’s written for network engineers and IT administrators who want a clean starting point without unnecessary confusion. What Does a Juniper Factory Reset Do? A factory reset restores a Juniper device to its default configuration state. Depending on the method you choose, it may: Remove all user-defined configurations Reset administrative credentials Clear system logs and user files Return the device to a clean, ready-to-configure condition Important: A factory reset does not downgrade or reinstall Junos OS. The operating system remains unchanged unless you manually reinstall it. Method 1: Factory Res...

 A Beginner's Guide to WAN: Architecture, Technologies, and Trends Wide Area Networks (WANs) enable organizations to interconnect geographically distributed sites. From multinational offices to cloud services, WANs are critical to modern IT infrastructure. 1. WAN vs LAN vs MAN Feature LAN MAN WAN Coverage Building or campus City/metropolitan area Cities, countries, or globally Speed 1–10 Gbps Medium Variable, typically slower than LAN Ownership Usually private Public/private ISP collaboration Technology Ethernet, Wi-Fi Fiber optics, microwave MPLS, SD-WAN, VPN, Satellite 2. WAN Technologies Leased Lines : Dedicated circuits for low-latency traffic. MPLS : Private paths inside the ISP network, QoS supported. VPN : Secure tunnels over public Internet. SD-WAN : Centralized management and intelligent routing. 3. Security Considerations End-to-end encryption (IPsec). Network segmentation for voice, video, and guest traffic. SASE : Integrates WAN and cloud security ...

The Ultimate Guide: How to Connect Your TP-Link Router and Troubleshoot Internet Issues Struggling to get your new TP-Link router online? Or is your previously working router suddenly refusing to connect to the internet? You've come to the right place. This comprehensive guide provides a step-by-step process for both initial setup and advanced troubleshooting , ensuring you can restore your internet connection quickly and effectively. Part 1: Before You Begin - Preparation is Key Before you start plugging in cables, let's get everything you need ready. This will make the process much smoother. Your TP-Link Router: And its power adapter. Your Internet Modem: The device your Internet Service Provider (ISP) gave you. Two Ethernet Cables: One to connect the modem to the router, and another (optional, but recommended for setup) to connect the router to your computer. Your ISP Information (If Required): Some providers require a username and password (this is common for PPPoE co...