Articles by tag "Catalyst 9300"

1. Replacement Options for Cisco 2960X EOL Switches: Migration Guide for Network Engineers
   Selene Gong

   35
   The Cisco Catalyst 2960-X Series switches have long been the backbone of campus access layers worldwide. However, the official End-of-Life (EOL) status for this product family means that network engineers and procurement managers must finalize their migration strategy immediately. This guide ...
2. Cisco Password Encryption Explained: Understanding Type 0, 5, 7, 8, 9, and 6
   Selene Gong

   38
   In enterprise networks, Cisco password encryption is often misunderstood. Engineers inherit legacy configurations, mixed encryption formats, and outdated compliance rules — creating operational risk without realizing it. This guide explains what Cisco password encryption truly means, whether ...
3. Mastering Dynamic ARP Inspection (DAI) on Cisco Switches
   Selene Gong

   43
   The Address Resolution Protocol (ARP) is fundamental to network communication within a Layer 2 broadcast domain, responsible for mapping IP addresses to MAC addresses. However, ARP is inherently vulnerable because it allows any host to send a "gratuitous reply" or forged ARP packet, a technique ...
4. How to Console into a Cisco Switch: Step-by-Step Guide for Engineers
   Selene Gong

   38
   When a network goes down, Wi-Fi is offline, and remote SSH access is unavailable, the console port becomes the ultimate fallback. For network engineers, IT administrators, and system integrators, mastering physical console access is fundamental to troubleshooting, initial configuration, and ...
5. Cisco Catalyst 3650 End-of-Support (EoS) & Upgrade Alternatives
   Selene Gong

   37
   The Cisco Catalyst 3650 series has been a reliable foundation for enterprise and SMB networks, providing Layer 3 switching and PoE capabilities. With the official End-of-Support (EOS) approaching, IT teams, network administrators, and procurement managers must plan upgrades to ensure continued ...
6. Cisco 9300 Password Recovery Guide – Step-by-Step Safe Procedure
   Selene Gong

   38
   Getting locked out of a Cisco Catalyst 9300 switch can be stressful, especially if it’s a production device or part of a StackWise deployment. Fortunately, recovering a lost password on a Cisco 9300 or 9300L running IOS XE is straightforward if you follow the correct procedure. This guide will ...
7. Cisco IOS Update: Minimize Risk and Avoid Network Downtime
   Selene Gong

   36
   Upgrading Cisco IOS or IOS XE is not just executing commands—it’s a strategic operation that directly impacts network uptime. Failures often come from environmental issues, flash corruption, latent hardware problems, or software bugs, rather than human error. Planning in advance ensures ...
8. Step-by-Step Guide: Safely Upgrade Cisco IOS XE on Catalyst Switches
   Selene Gong

   32
   Upgrading Cisco IOS XE on Catalyst switches can be daunting if done on production networks. Even experienced network engineers face risks like boot failures, flash corruption, or unexpected downtime. This guide provides a step-by-step, risk-aware approach for safe upgrades, with embedded ...
9. How to Upgrade IOS XE on Cisco Catalyst 9300: Ultimate Production Network Guide
   Selene Gong

   37
   Upgrading Cisco Catalyst 9300 switches running IOS XE is a routine task—but in production networks, it is also a high-risk change operation. A failed upgrade can trigger boot loops, stack desynchronization, or PoE outages that violate SLAs and impact business-critical services. This guide is ...
10. When to Replace vs Upgrade a Cisco Switch: Enterprise Lifecycle & IOS XE Upgrade Guide
    Selene Gong

    38
    Deciding whether to replace a Cisco switch or simply upgrade its IOS XE software is a key challenge for enterprise IT teams. Choosing the wrong approach can result in unexpected downtime, security risks, or wasted budget. This guide provides actionable insights on hardware lifecycle, software ...