The Networking Nexus

Subnetting might sound like something only networking gurus need to worry about, but it’s actually a smart method for managing IP addresses. You can think of it like slicing a pizza (your network) into smaller, manageable pieces (subnets) so everyone has a fair share with no overlap. This can help reduce congestion and tighten security by separating the network traffic. You can also customize how many hosts per subnet by using variable length subnet masking (VLSM) to avoid handing out more addresses than you need. For anyone like myself who is learning or prepping for certifications, getting a good grasp of subnetting is a must-have tool in your toolkit.

     Networks need redundancy to prevent outages; however, too many redundant connections can cause a loop. This loop will send data endlessly around the network until bandwidth is completely used up and the network crashes. To prevent this, the Spanning Tree Protocol (STP) was created. It stops loops by blocking unnecessary paths while keeping the best routes open to traffic flow. Because of this, STP is usually on by default.      STP works well, but it can be slow to react to changes in the network. It can take up to a minute to fix. During an outage, a minute can seem like an eternity when you need to get back online. Rapid Spanning Tree Protocol (RSTP) speeds up the convergence times, which restores network connectivity in seconds.       Without STP, networks could be rendered useless because of their redundancies. It is the unsung hero and is sometimes overlooked despite how crucial it is for keeping data flowing smoothly.

     Networking is crucial to interconnecting the world we live in. It enables the exchange of information across systems, services, and regions. This week, I learned about some of the core networking concepts, including architecture, different topologies, and the evolution of earlier network devices that provide connectivity.          Network architecture defines the layout of a network. Topologies determine how the devices interact with one another. There are two key concepts of topologies – the physical and logical topologies. The physical is the actual cabling, while the logical outlines how data flows.      Networking devices play a huge role in the transmission of data. They have also evolved, intelligently forwarding and routing traffic through networks. Devices such as hubs or switches connect devices, and routers connect networks, serving as the gateway and directing traffic between them. Understanding the basics of how dat...

  Hello everyone,     My name is Bilal, and I am pursuing a BS in Information Technology. I have an IT background from my days in the United States Air Force; however, I have always been interested in technology and how things worked under the hood. I spent a little over 9 years as a Satellite Communications Technician, working on the ground terminals used to connect to military satellites in space. It was hard work but rewarding, which led me to choose this major.      This blog will be where I share my knowledge, experiences, and maybe even a few lessons learned along the way. I'll be attempting to break down concepts and dissect the inner workings of network devices and protocols to help build a deeper understanding of the field. If you're also an aspiring network professional or someone curious about how computers communicate over the internet, I hope you enjoy following along as I attempt to decode networks.