Cisco

Hello friends! You’ve just graduated, you have your diploma in hand, and a vast IT world lies ahead of you. While wondering “Which path should I take?”, you came across Network Engineering. So, do these people just plug in cables, or is there a massive intelligence behind the scenes? Let’s dive deep into this invisible heroism of the digital world. 🕸️ What is a Network? (A Journey on the Digital Highway) In its simplest terms, a network is a transport vehicle that allows systems to communicate with each other. It enables computers to function not as independent islands, but as a massive, interconnected continent. ...

Nexus Software Upgrade Guide This guide covers the Cisco Nexus NX-OS software upgrade process in a practical, step-by-step manner, including rollback and recovery scenarios. The goal is to minimize service disruption and ensure the device can always be recovered in case of failure. 1. Pre-Upgrade Checks Before starting the software upgrade, you must complete the preparation steps below. Most upgrade failures are caused by skipping or underestimating this phase. Configuration Backup Always take a full configuration backup before upgrading. Store the backup outside the device (local PC, FTP/SFTP server, etc.). This backup is critical if a rollback or manual recovery is required. Switch Model and Current Software Version Verify the switch model and the currently running NX-OS version using the following commands: ...