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We’re diving into the tools you’ve used since day one—ping and traceroute—but with a twist. These commands are more powerful than most people realize. Sure, you know how to ping a server, but did you know you can set the packet size, use extended options, […]
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If you’ve ever set up a highly available network and found that clients were still complaining about packet drops or intermittent internet, there’s a good chance HSRP was either misconfigured or malfunctioning. Troubleshooting HSRP (Hot Standby Router Protocol) can be tricky if you’re not familiar […]
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Today I want to walk you through a problem that many of us face in real-world environments—STP flapping. If you’ve ever dealt with mysterious connectivity drops, unstable MAC tables, or users yelling, “The network is slow!” with no obvious root cause—there’s a good chance Spanning […]
![Mastering SPAN and RSPAN Configuration – A Deep Dive for Real-World Network Monitoring [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/07/Mastering-SPAN-and-RSPAN-Configuration-–-A-Deep-Dive-for-Real-World-Network-Monitoring_networkjourney.png)
When it comes to network troubleshooting and traffic analysis, capturing the right packets at the right place makes all the difference. How SPAN and RSPAN work behind the scenes—this post is tailor-made for you. Today, we’ll simplify a topic that often looks intimidating in textbooks […]
![Cisco Debug vs Show Commands: Deep Dive for Network Troubleshooting [CCNP Enterprise]](https://networkjourney.com/wp-content/uploads/2025/07/Cisco-Debug-vs-Show-Commands-Deep-Dive-for-Network-Troubleshootingnetworkjourney.png)
If you’ve ever been stuck troubleshooting a stubborn routing issue or chasing down why BGP isn’t forming, you know that sometimes a simple show command gives you just the picture—but not the full story. That’s where debug steps in. In this guide, I’ll break down […]
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As a network trainer and hands-on engineer, I’ve seen engineers struggle not with capturing packets—but with filtering them effectively in Wireshark. Trust me, if you don’t filter the noise, your packet captures become digital haystacks. That’s why in this post, I’m sharing battle-tested Wireshark filter […]
