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Cisco

A collection of 35 issues

Resetting Counters on Cisco Switches

Introduction Interface counters on Cisco switches provide crucial insights into network performance, error conditions, and traffic patterns. However, there are times when these counters need to be reset to establish new baselines or troubleshoot issues. This guide provides a comprehensive overview of counter management on Cisco switches, from basic concepts

10 Cisco Port Audit Steps for Amazing Network Security

A thorough Cisco port audit is the foundation of robust network security and performance. In this comprehensive guide, you’ll master the essential techniques for auditing Cisco switch ports, from basic configuration checks to advanced security analysis. Our team of network security experts has compiled this resource based on real-world

How to Configure HTTP Method on a Cisco Switch

Introduction In today’s network environments, secure web-based management of network devices is crucial. This guide provides a comprehensive walkthrough of configuring HTTP and HTTPS services on Cisco switches, ensuring both functionality and security. Learning Objectives By the end of this guide, you will be able to: * Configure basic HTTP

How to Check Your Cisco Switch Warranty

Introduction Check your Cisco switch warranty status for maintenance planning and support eligibility. This guide will show you exactly how to locate your serial number and verify your warranty status through multiple methods. Prerequisites * Cisco switch physical or remote access * CCO ID (Cisco.com account) for online checking * Basic understanding

EtherChannel Configuration on Cisco Switches

Introduction In this lesson, I will explain how to configure, verify, and troubleshoot EtherChannel on Cisco switches. EtherChannel technology combines multiple physical interfaces into a single logical interface, providing increased bandwidth and redundancy for inter-switch connections. Lesson Objectives After completing this lesson, you will be able to: * Understand the different

CCNA vs Other Certifications: Making the Right Choice

After 20 years in IT and helping dozens of colleagues navigate their certification journeys, I’ve seen firsthand how overwhelming the certification landscape can be. Fifteen years ago, I was exactly where you might be now – staring at a browser with 50 tabs open, trying to figure out which certification

Master Cisco VLAN Configuration: Step-by-Step Guide

Introduction In this lesson, I will explain how to configure, manage, and troubleshoot VLANs (Virtual Local Area Networks) on Cisco switches. VLANs are fundamental to network segmentation and security, allowing you to create logical network boundaries within a physical switch infrastructure. Lesson Objectives After completing this lesson, you will be

Cisco PVST+ Guide: Spanning Tree Made Simple

Introduction In this lesson, I will explain how to implement and manage Per VLAN Spanning Tree (PVST+) on Cisco switches. PVST+ is Cisco’s enhanced version of Spanning Tree Protocol that creates separate spanning-tree instances for each VLAN, enabling better load balancing and more efficient network utilization. Lesson Objectives After

Fixing Cisco VLAN Interface Down

I'd like to share a story that might sound familiar to you. It was 2 AM, and I was staring at my console, seeing that dreaded “VLAN X is down, line protocol is down” message. After years of troubleshooting these issues, I’ve developed a systematic approach I

The Best CCNA Network Simulators: My Hands-On Experience and Complete Guide

Let me tell you a story about my biggest CCNA study mistake: waiting too long to start hands-on practice. After weeks of reading books, I realized that configuring routers and switches, even virtual ones, was a game-changer. I’ve since tested every major network simulator out there, and I’m