Smart Network Ltd., South Sudan
What does it mean when a switch restricts network segment access

What does it mean when a switch restricts network segment access

Port-based network access control (PNAC) blocks access to a network by denying communication between an unauthorized device and the network. When an unauthorized device attempts to connect to a network port, the switch or router that manages the port will deny access to the network. NAC verifies who and what is connecting, checks whether a device meets security. Segmentation is the practice of dividing a network into smaller parts called segments to improve security, performance, manageability, and compliance. Of organizations say segmentation is a priority. Enabling this feature keeps track of permitted source MAC addresses and restricts the number of MACs that can use a specific port. [pdf]

Fiber Optic Network Debugging Methods

Fiber Optic Network Debugging Methods

Effective fiber testing utilizes advanced tools such as Optical Loss Test Sets (OLTS), Optical Time-Domain Reflectometers (OTDR), and Visual Fault Locators (VFL) to diagnose and correct issues, ensuring optimal network performance. Fiber optic networks are the backbone of modern data centers and communication systems, valued for their high bandwidth, low latency, and reliable connectivity. Such a comprehensive approach to fiber optic cable testing. Fiber optic testing for continuity is crucial in ensuring that light transmits through fiber optic cables without interruptions, safeguarding seamless data transmission. This guide talks about the primary methods and tools for effective continuity testing in fiber optic cable networks. When issues like signal loss, slow speeds, or intermittent connectivity arise, systematic troubleshooting is key. [pdf]

Advantages of Wall-Mounted Network Cabinets

Advantages of Wall-Mounted Network Cabinets

However, here's an interesting twist: in 2025, with rising energy costs, in-wall options are proving to be money-savers. These cabinets typically consume up to 20% less power for cooling because their smaller size and better airflow design require less climate control. What Is a Wall Mounted Network Cabinet? Uses, Pros and Buying Tips 2026 Small businesses, remote branch offices, retail outlets and home IT setups regularly grapple with common network infrastructure issues. Loose scattered hardware, exposed tangled cables, unprotected devices and poor thermal. However, understanding the differences between an in-wall network cabinet and a traditional rack doesn't have to be complicated. In this guide, we'll break down everything you need to know in simple terms, so you can make the best decision for your business. [pdf]

How many meters should the cable trays be spaced in a multi-layer network

How many meters should the cable trays be spaced in a multi-layer network

When installing two cable trays in parallel at the same height, the distance between them should be no less than 0. This spacing is crucial for adequate maintenance access, ease of inspection, and ensuring proper airflow for effective heat dissipation. The spacing between trays, whether horizontal or vertical. The NEC requires that cable trays must be supported by members at an interval specified by the cable tray manufacturer, but not more than 5 feet for horizontal runs to support the weight of the cables and other loads. The NEC has a requirement for ladder-type cable trays. Cable tray installation is often treated as a secondary activity on construction sites, but from real project execution experience, it is actually one of the. [pdf]

Home Network Equipment Rack Planning

Home Network Equipment Rack Planning

This guide walks you through the full process, from choosing the right rack to installing hardware, power, cooling, and network components. Your rack selection determines how much equipment you can mount today and how easily you can expand later. Creating a rack diagram is an important step to having sustainable good cable management in the network cabinet. What Is a Server Rack Cabinet for Home? A server rack cabinet for home is basically a special piece of furniture designed to hold all your networking and. Setting up a home server rack creates a cleaner, safer, and easier-to-manage environment for your servers and networking gear. They keep your network organized, distribute power safely, and support future upgrades. You've just moved into your first house, you're staring at a blank wall in the basement or. [pdf]

Need Advanced Liquid Cooling for Your Data Center or AI Cluster?

Request a free quote for immersion tanks, cold plate systems, CDUs, liquid‑cooled racks, piping, or complete retrofit packages – all engineered for high‑density computing, energy efficiency, and sustainable thermal management. EU‑owned manufacturer with local support in South Africa – reliable, scalable, and field‑proven.