All About Engineering & Architecture
OSPF Explained Like You’re Traveling Across the Philippines “Part of my CCIE Enterprise Infrastructure Journey.” I remember concepts much better when I can visualize them. So instead of memorizing Link State Advertisements, DR elections, and SPF calculations, I imagined traveling across the Philippines. Oddly enough… It made OSPF much easier to understand. Let’s start from […]
001 CCIE EI Study Notes – OSPF Explained Read More »
The Hook: Busting the Myth Let’s start with a reality check that 90% of networking articles get wrong: Distance Vector protocols aren’t the ones eating your CPU. If you are running RIP or EIGRP, your router is essentially “routing by rumor.” It takes a neighbor’s word for it, drops it in a table, and moves
The Day 1,000 OSPF Neighbors Killed ASR Router Read More »
Introduction For many months—or maybe even a year now—I’ve been wondering if I’d ever get the chance to add Cisco DNA Center (now Cisco Catalyst Center) to my home lab. At first, it felt like a huge “how?” The biggest challenge wasn’t just figuring out the installation process, but also meeting the hardware requirements… and
Installing Catalyst Center (DNAC) 2.3.5 on Proxmox (Budget Friendly?) Read More »
Today, let’s talk about wireless design and the key components used in enterprise networks. This is a summary of what I’ve learned from my research and, of course, a little bit of “YouTube University” 😄 Multi-Gigabit Ethernet and Future-Proofing Network Switches The use of multi-gigabit ports supporting 1, 2.5, 5, and 10 Gbps on switches
Wi-Fi End-to-End Design & Components Read More »
In day 2, I focused on Equal Cost Multi-Path (ECMP) of Fortigate but let me dig deep into the design – architecture aspect. first, this post is just my personal view and unlocking further about the ECMP. ECMP job is pretty simple. Its job is to move packets from a source to a destination using
Equal Cost Multi-Path(ECMP) Design – Architecture Aspect Read More »
If you ask a network engineer about “resiliency,” you’ll often hear about redundant links, fast OSPF or BGP convergence, and high-availability clusters. But what if that’s only a tiny piece of the puzzle? What if true resiliency isn’t about the network never breaking, but about what happens—or doesn’t happen—when it inevitably does? Inspired by a
Network Resiliency Is NOT About Redundancy Read More »
