Why more bandwidth doesn't always fix network issues

New blog post: Ethernet Frames: The Unsung Heroes of Your Network Without them, your data’s just chaos in the void. With them, we get order, VLANs, and fewer broadcast meltdowns. A quick guide to Layer 2 for anyone brushing up on CCNA or just curious how networks actually keep it together.

Discover what is Internet Latency, why it matters, and how to fix high ping with simple tips for speed and performance in 2025. https://lnkd.in/d_2yiXzW #WhatisInternetLatency #Bandwidth #HighSpeedInternet #PingTime #OnlineStreaming

Every new TCP connection = 3-way handshake overhead. Keep-Alive keeps the connection open, skipping the repeated setup → faster requests, lower latency. 🚀"

Love the package delivery analogy for explaining UDP and TCP! However, I think the UDP guy's actions could better illustrate the connectionless nature of UDP. Instead of kicking the package, why not have him simply throw it from a distance without waiting for confirmation? This would show how UDP prioritizes speed over reliability.

Networking doesn’t have to be complicated. Here is a blog that simplifies one of the most important layers in networking — the Data Link Layer (Layer 2). In this article: ✅ How ARP helps resolve MAC addresses ✅ Why STP prevents network loops ✅ The role of VLANs in segmenting networks ✅ How trunking keeps VLANs consistent across switches. Blog: https://lnkd.in/gV4P9Wta

📦 TCP or UDP — which one should you use? In this video, we explain the Transport Layer of the TCP/IP model and break down the key differences between TCP and UDP with real-world use cases.

𝐁𝐆𝐏 – 𝐑𝐨𝐮𝐭𝐞 𝐅𝐢𝐥𝐭𝐞𝐫𝐢𝐧𝐠 𝐂𝐨𝐧𝐟𝐮𝐬𝐢𝐨𝐧 𝐒𝐜𝐞𝐧𝐚𝐫𝐢𝐨: You configure a BGP route-policy to filter specific prefixes from being advertised. However, the prefixes are still visible on the neighbor. 𝐒𝐞𝐭𝐮𝐩: ✅ Policy defined correctly ✅ Policy applied in configuration 🚫 Routes still advertised 𝐖𝐡𝐚𝐭’𝐬 𝐭𝐡𝐞 𝐦𝐨𝐬𝐭 𝐥𝐢𝐤𝐞𝐥𝐲 𝐜𝐚𝐮𝐬𝐞? A. Route-policy applied in wrong direction B. Prefix-list not referenced in policy C. Neighbor soft reset not triggered D. iBGP session requires route-reflector 𝐂𝐂𝐍𝐏 𝐭𝐨 𝐂𝐂𝐈𝐄 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐯𝟏.𝟏 | NETWORK JOURNEY 𝐙𝐎𝐎𝐌 𝐑𝐄𝐆𝐈𝐒𝐓𝐄𝐑: https://lnkd.in/gJke5fKH

🚀 TCP vs. UDP: The Handshake That Makes All the Difference 🤝 When devices communicate over the internet, they rely on two key transport protocols: TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). While both get your data from point A to point B, they do it in very different ways—with trade-offs that matter depending on the use case. Here’s a quick breakdown to help you understand when to use which:

TCP/IP goal (1970s): “Any host can talk to any host.” Blockwidth goal (2020s): “Any intent-carrying signal can arrive predictably enough to keep independent machines in better sync and coordination.”

Protocol Redistribution – Have you ever gotten lost in the middle of loops? In real life , we often need to make different protocols "talk": EIGRP, OSPF, BGP... That's where Protocol Redistribution comes in. 👉 But beware: how you implement it makes all the difference between a stable network and a nightmare of loops. 🔑 The 4 types of Redistribution 1️⃣ One-Point One-Way ✅ Safe and simple. Routes only go in one direction. 2️⃣ One-Point Two-Way ⚠️ Bidirectional in a single point. Widely used in migrations, but requires tags and filters. 3️⃣ Multipoint One-Way 🔁 Several points, only in one direction. Redundancy with controlled risk. 4️⃣ Two-Way Multipoint 🚨 Very high risk! Routes can circulate and generate loops. Only with filters, tags, and summarization. 🎯 Summarizing Whenever you can: Prefer One-Way. If you need Two-Way: Use tags and prefix-lists. Multipoint Two-Way? Only if there is no other way out.