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Tag: sagar dhawan

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Still Using Standard vSwitches? Here's Why DVS Is a Must in 2025 [CCNP ENTERPRISE]
  • Sagar Dhawan
  • Posted on July 17, 2025
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Still Using Standard vSwitches? Here’s Why DVS Is a Must in 2025 [CCNP ENTERPRISE]

Today we’re diving into something that every modern network engineer must understand — Virtual Switches. Whether you’re configuring labs in EVE-NG, building enterprise data centers, or managing virtual machines in VMware or Hyper-V, virtual switches (vSwitch and DVS) are everywhere. I remember the first time […]

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Wireless LAN Controller Architecture – A CCNP Deep Dive [CCNP ENTERPRISE]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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Wireless LAN Controller Architecture – A CCNP Deep Dive [CCNP ENTERPRISE]

If you’ve ever worked with enterprise Wi‑Fi, you know how vital a good controller architecture is. I remember troubleshooting a campus network where the WLC was overloaded and APs were floating—quite a nightmare! That’s exactly why today, we’re going to explore Wireless LAN Controller (WLC) […]

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Wireless QoS Settings – Prioritizing Your Wireless Traffic Like a Pro[CCNP Enterprise]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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Wireless QoS Settings – Prioritizing Your Wireless Traffic Like a Pro [CCNP Enterprise]

Have you ever found yourself streaming a video while your download crawls at a snail’s pace—or worse, voice calls keep breaking even with full bars of Wi-Fi? That’s not just bad luck; that’s a network without QoS! Today, we’re going to demystify a crucial concept […]

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Introduction to JSON & YANG – The Foundation of Network Automation [CCNP Enterprise]
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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Introduction to JSON & YANG – The Foundation of Network Automation [CCNP Enterprise]

You’ve probably heard the terms JSON and YANG thrown around in the world of network automation, but they might still feel like mysterious tech-jargon to some. Trust me—I was there too. In this post, I’ll walk you through what JSON and YANG really mean for […]

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REST API Basics for Cisco Devices – Automate Smarter, Not Harder [CCNP Enterprise]
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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REST API Basics for Cisco Devices – Automate Smarter, Not Harder [CCNP Enterprise]

If you’ve ever felt overwhelmed jumping between CLI screens or manually configuring the same changes across dozens of Cisco devices—then it’s time we talk automation. Today, we’re diving into the REST API basics for Cisco devices, a game-changer for anyone looking to modernize their workflow. […]

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Model-Driven Telemetry vs SNMP – Rethinking Network Monitoring [CCNP ENTERPRISE]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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Model-Driven Telemetry vs SNMP – Rethinking Network Monitoring [CCNP ENTERPRISE]

If you’re still relying on SNMP for network monitoring, it’s time to think ahead.I get it — SNMP has been around forever. Most of us have used tools like SolarWinds, PRTG, or Nagios with SNMP polling, right? But let’s be honest — it’s slow, reactive, […]

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Git and GitHub for Network Engineers – Version Control Made Easy [CCNP ENTERPRISE]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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Git and GitHub for Network Engineers – Version Control Made Easy [CCNP ENTERPRISE]

Today I want to share something that totally transformed the way I manage and automate my network configurations — Git and GitHub. I still remember those days when I used to create backups of configs manually, store them in random folders, and name them like […]

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Multicast in SD-WAN and Cloud Networks – Bringing One-to-Many to the Next Gen WAN [CCNP ENTERPRISE]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 11, 2025
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Multicast in SD-WAN and Cloud Networks – Bringing One-to-Many to the Next Gen WAN [CCNP ENTERPRISE]

In this blog post, I’ll walk you through everything—from how multicast works (or breaks) in SD-WAN to cloud-native alternatives for multicast delivery, along with CLI examples, EVE-NG labs, and real-world use cases. Let’s dive into how the one-to-many paradigm is adapting to modern WAN architecture. […]

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Troubleshooting Multicast in Enterprise – From Chaos to Clarity [CCNP ENTERPRISE]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 10, 2025
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Troubleshooting Multicast in Enterprise – From Chaos to Clarity [CCNP ENTERPRISE]

Today we’ll dive deep into the art and science of troubleshooting multicast in enterprise networks. This post is for engineers who are tired of “guesswork” and want step-by-step strategies to solve real multicast challenges—whether it’s IPTV not streaming or CCTV video dropouts. We’ll pair concepts […]

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IGMP Snooping and Configuration – Mastering Multicast Efficiency [CCNP ENTERPRISE]_networkjourney
  • Trainer Sagar Dhawan
  • Posted on July 10, 2025
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IGMP Snooping and Configuration – Mastering Multicast Efficiency [CCNP ENTERPRISE]

Today’s article is all about IGMP Snooping—a crucial Layer 2 switch feature that ensures multicast traffic only reaches the devices that actually asked for it. Whether you’re preparing for CCNP or managing an enterprise network, understanding IGMP Snooping is a must. Let’s break it down […]

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