Articles by tag "Cisco Catalyst 9300"

1. Power Controller Reports Power Imax Error Detected on Cisco 9300
   Selene Gong

   25
   What Does "Power Imax Error Detected" Mean? The "Power Imax Error Detected" message on a Cisco Catalyst 9300 switch usually indicates that a PoE (Power over Ethernet) port has drawn more current than the configured or hardware-supported limit. This triggers the power controller to shut down the ...
2. How Many Rack Units Is a C9300-NW-A-48?
   Selene Gong

   11
   Rack space is a key consideration when planning a network deployment, especially in data centers or wiring closets with limited room. Cisco's Catalyst 9300 series, including the C9300-NW-A-48, is designed with a compact 1U form factor to optimize space and scalability. What Is a Rack Unit? A ...
3. How Many VLANs Are Supported on Cisco Catalyst 9300?
   Selene Gong

   15
   VLANs (Virtual Local Area Networks) are essential for logically segmenting Layer 2 networks in enterprise environments. With Cisco’s Catalyst 9300 series, a widely used access layer switch, it's important to understand how many VLANs it supports — both in theory and in practice. This guide ...
4. How to Change the PoE Setting on Cisco Catalyst C9300-24U Switch
   Selene Gong

   25
   Power over Ethernet (PoE) is a critical feature in modern enterprise access switches like the Cisco Catalyst 9300-24U. Whether you're deploying IP phones, wireless access points, or IoT devices, configuring PoE correctly ensures stable performance, power efficiency, and long-term reliability. ...
5. Cisco Catalyst 9300 Stops Looking for Stack Switch — Troubleshooting and Solutions
   Selene Gong

   12
   Cisco Catalyst 9300 switches are widely used in enterprise networks for their high performance and stacking capabilities. However, network engineers sometimes face a critical issue where a Cisco Catalyst 9300 stops looking for a stack switch, meaning a stack member is no longer detected. This ...
6. How to Upgrade from Cisco Catalyst 2960 to Catalyst 9300? Step-by-Step Guide and Troubleshooting Tips
   Selene Gong

   12
   In today’s rapidly evolving network environments, upgrading your infrastructure to meet growing demands for performance, security, and automation is critical. This guide is tailored for network engineers and IT professionals planning to upgrade from Cisco Catalyst 2960 series switches to the ...
7. Cisco 3850 End of Life Replacement: Comprehensive Upgrade and Migration Guide
   Selene Gong

   11
   The Cisco Catalyst 3850 series switches are approaching or have reached their End-of-Life (EoL) and End-of-Sale (EoS) milestones, making strategic upgrades essential for IT managers, network engineers, and procurement specialists. This article provides a detailed overview of the 3850’s EoL ...