Why VLANs? Computer networks are vital for our connected world, enabling communication and data transfer. One important concept within these networks is Virtual Local Area Networks (VLANs). In simple terms, VLANs help organize devices, improve security, boost performance, and make network management easier. Let's dive into VLANs and
Cisco VTP (VLAN Trunking Protocol) is a proprietary protocol used in Cisco networking devices to manage and propagate VLAN (Virtual Local Area Network) configurations across a switched network. VTP allows network administrators to create, delete, and modify VLANs on a central switch, known as the VTP server, and have those
After receiving my CCNA and following up with the JNCIA certification, the next steps in my professional development as a network engineer have been anything but clear. In that I immensely enjoyed my Juniper studies, I initially thought the most natural next focus should be the JNCIS-ENT. But then there
Before I really get into this post, I need to say thank you to my wife’s cousin’s fiancé. Without him, this post would not have happened. He and his wife-to-be came to visit our home for lunch one Sunday afternoon. He said his English was not that great,
There are many tools network administrators and security professionals rely on to provide insights into network traffic and vulnerabilities. We’ll take a look at two of my favorite tools today, Wireshark and Nmap. That and I thought this topic dovetailed nicely with the post about enabling SSH on a
I really wanted to be lazy and just post the video I shot for this post instead of just typing it out, but the upload failed twice already—too much work! Anyway, what I wanted to talk about was the Juniper JNCIA-Junos Exam I took yesterday—and passed (hooray)! Juniper
Getting ready for the upcoming exam, I realize this will be much more than just a prayer and crossed fingers in the hopes of passing. The Juniper JNCIA-JUNOS exam is rumored to be much easier than the Cisco CCNA exam, but I won't let that notion lull me
rain fell in torrents umbrellas fought tsunamis I went back to bed
I stepped out into the rainy-wet streets to start my day with a quick run this morning, it dawned on me as I struggled to get moving that, though I've maybe expressed this thought in a number of variant ways in the past and to a handful of
I’m amazed at how even just a little bit of travel hits the reset button on the creative flow. It is as though the hum-drum of everyday life droning on drowns out the whispers of inspiration. But when you venture out into the unknown, whether it's to
Your mom doesn't work here—clean up after yourself! Descending into the smoggy haze that calls itself home after a reprieve with a clean-sky week abroad, I was reminded of just how much filth we subject each other to in Seoul. The first place I headed after getting
I know a place where you can find solace in the simplicity of cheap coffee and mediocre curry for breakfast. It may not be the epitome of luxury, but sometimes all we need is a familiar setting that offers a sense of comfort. Nestled in a remote corner of the
Enabling SSH on Cisco IOS is a secure way to remotely access and manage your network device. SSH encrypts all traffic, preventing any unauthorized access to your Cisco device. In this post, we will walk you through the steps to enable SSH on a Cisco switch. The process is the
Artificial intelligence (AI) has rapidly advanced in recent years, leading to many concerns about its impact on society, including its potential to replace human creativity in fields such as art, music, and poetry. However, while AI is capable of producing impressive works of art and music, it is not the
Hello and welcome to Cisco IOS! In this tutorial, we'll go over the basics of navigating Cisco IOS and some common commands that you'll need to know. First, let's talk about the command line interface (CLI). The CLI is where you'll enter
Supernetting, or route summarization, is a relatively straightforward concept. It’s much easier to hold a single piece of information, such as a phone number, in your active memory than to try to remember several numbers, unless, of course, the numbers form a range of contiguous phone numbers. In that