Switches

1. TP-Link Warranty Check Guide: How to Verify Coverage and Request Support
   Selene Gong

   32
   Quick Take Performing a TP-Link warranty check requires identifying your device serial number and aligning it with your purchase region's authorized channels. While Omada business-grade access points and JetStream switches often feature Limited Lifetime Warranties, ...
2. PoE 30W vs 60W vs 90W: Choosing the Right Power for Your Enterprise Network
   Selene Gong

   36
   As enterprise networks evolve to support Wi-Fi 7 access points, multi-radio devices, IoT sensors, and high-end cameras, Power over Ethernet (PoE) has become essential. PoE simplifies deployment by delivering both data and DC power over a single Ethernet cable. Understanding the differences ...
3. SFP-10G-SR vs LR vs DAC vs AOC: Selecting the Right 10G Connectivity for Your Enterprise
   Selene Gong

   31
   Choosing the optimal 10 Gigabit Ethernet (10GbE) connectivity solution for your data center, campus network, or server interconnects requires balancing distance, performance, cost, power consumption, and deployment environment. The widely used SFP+ form factor supports four primary media types: ...
4. How to Upgrade IOS XE on Cisco Catalyst 9300 Stack: Multi-Role Guide for Engineers, IT Managers, and Architects
   Selene Gong

   37
   Upgrading Cisco Catalyst 9300 switch stacks is a critical task for enterprise networks. Whether you are a network engineer, IT manager, or systems architect, ensuring a smooth upgrade minimizes downtime, maintains hardware compatibility, and aligns with long-term operational plans. This guide ...
5. Cisco 9200 PoE Not Working: Troubleshooting, Causes & Replacement Guide
   Selene Gong

   38
   Imagine walking into the office on Monday morning, or completing a late-night deployment, and suddenly the IP phones are dark, Wi-Fi access points show no LEDs, and security cameras are offline. The switch is running, but Power over Ethernet (PoE) has failed. For businesses relying on Cisco ...
6. Cisco Catalyst 9300 PoE Not Working: Causes, Troubleshooting & Replacement Guide
   Selene Gong

   32
   Power over Ethernet (PoE) is essential for enterprise endpoints like IP phones, wireless access points, and security cameras. When a Cisco Catalyst 9300 fails to deliver PoE, it can disrupt mission-critical services. This guide provides a systematic technical analysis, actionable troubleshooting ...
7. 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 ...
8. How to Migrate from Cisco 2960X to 9200L Switches
   Selene Gong

   41
   The Cisco Catalyst 2960X series has long been a reliable workhorse for enterprise access layers. However, with the platform reaching its End-of-Life (EOL) milestones, IT teams face pressure to migrate to modern, supported solutions. The recommended migration path leads to Cisco Catalyst 9200 ...
9. 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 ...
10. The Two Actions Performed by a Cisco Switch: Learning & Forwarding Explained
    Selene Gong

    40
    Whether you are designing a complex enterprise LAN, troubleshooting VLAN issues, or preparing for Cisco certification (like the CCNA), understanding how Cisco switches operate is essential. Beyond configuration and features, what are two actions performed by a Cisco switch is a common question ...