Switches

1. 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 ...
2. Cisco Catalyst 4500 & 4500X End-of-Support (EoS) Guide: Migration, Risks, and Catalyst 9000 Upgrades
   Selene Gong

   32
   The Cisco Catalyst 4500 and 4500X Series switches have been the backbone for many enterprise and campus networks, handling aggregation and core roles reliably for years. But as network speeds push toward 25G, 40G, and 100G, and software-defined architectures (SD-Access) become standard, these ...
3. Cisco Nexus 3000 End-of-Support Guide: What You Need to Know and Why Migrating to Nexus 9000 Matters
   Selene Gong

   34
   For more than a decade, the Cisco Nexus 3000 Series has been a reliable workhorse in data centers—especially in top-of-rack (ToR), low-latency trading environments, and fixed-port deployments. But as many of the most widely used models now approach or have already entered Cisco’s End-of-Life ...
4. Cisco Nexus 5000 End-of-Life Guide: Risks, Timelines, and Upgrading to Nexus 9000
   Selene Gong

   34
   For over a decade, the Cisco Nexus 5000 Series has been a staple in data center networks, powering top-of-rack (ToR) deployments and middle-layer aggregation for 10G and 40G environments. These switches have earned a reputation for reliability and performance, but the realities of modern data ...
5. Cisco 9200 Password Recovery Guide (IOS XE) – Step-by-Step Without Config Loss
   Selene Gong

   14
   Regain Access Without Configuration Loss (IOS XE) Getting locked out of a Cisco Catalyst 9200 switch is stressful — especially when the device is already in production or when you’ve inherited equipment with no credentials. The good news is that Cisco 9200 password recovery is fully ...
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 9500 Password Recovery Guide
   Selene Gong

   31
   Losing access to a Cisco Catalyst 9500 switch can be stressful, particularly when it serves a critical role in core or aggregation networks. The good news is that IOS XE provides a reliable method to recover your password without wiping your configuration. This guide walks you through practical ...
8. Cisco 3850/3650 Password Recovery Guide – Regain Access Safely
   Selene Gong

   34
   If you are locked out of a Cisco Catalyst 3850 or 3650 switch, this guide provides a safe, step-by-step procedure to restore access without affecting your existing VLAN, interface, or routing configurations. The steps are tailored for network engineers, IT professionals, and system ...
9. Cisco 2960X Password Recovery Guide – Reset Console and Enable Passwords Safely
   Selene Gong

   39
   If you’ve lost the console or enable password on a Cisco Catalyst 2960X switch, this guide provides a reliable, step-by-step method to regain access without losing your existing configuration. The Catalyst 2960X uses a file renaming method to bypass stored passwords, which is distinct from the ...
10. Cisco 3850 to 9300 Migration Guide: Upgrade Your Network with Confidence
    Selene Gong

    35
    The Cisco Catalyst 3850 Series switches have reliably served as a key access layer platform, combining wired and wireless access in a single device. However, as network demands grow — from higher throughput and security to cloud readiness — the 3850 is reaching its operational limits. ...