Articles by tag "SD-Access"

1. How to Fix: Cisco Catalyst Fabric Site Not Showing Edge Node
   Selene Gong

   49
   When deploying or managing your Cisco Software-Defined Access (SD-Access) fabric, you may encounter an issue where your cisco catalyst fabric site not showing edge node in Cisco Catalyst Center (formerly Cisco DNA Center). In the topology view, affected edge nodes appear grey or white instead of ...
2. ProCurve Manager vs Aruba AirWave vs Cisco DNA Center: Choosing the Right Network Management Platform
   Selene Gong

   42
   In modern enterprise environments, managing complex network infrastructures efficiently is critical. Selecting the right network management platform impacts network performance, operational costs, security, and end-user experience. For IT managers, system integrators, and procurement teams, ...
3. How to Secure Access Ports on Cisco Catalyst Switches: 802.1X, MAB, and TrustSec Explained
   Selene Gong

   38
   Network access control (NAC) is the cornerstone of enterprise security. Unsecured switch ports can allow unauthorized devices, malware propagation, and data breaches. Network engineers, IT managers, and procurement teams need solutions that provide strong security while maintaining operational ...
4. Network Segmentation with Cisco Catalyst Switches and ISE: From VLANs to Zero Trust
   Selene Gong

   36
   In today’s threat landscape, a flat network is a vulnerable network. For enterprise networks handling sensitive data, IoT devices, and BYOD endpoints, static VLANs and manual ACLs are no longer sufficient. Cisco Catalyst switches combined with Cisco Identity Services Engine (ISE) provide the ...
5. Cisco Catalyst 9200 End-of-Support & Upgrade Path: Navigating IOS XE Lifecycle and Upgrade Decisions
   Selene Gong

   37
   The Cisco Catalyst 9200 Series Switches are widely deployed in enterprise, educational, and government networks as a modern standard for campus access. While the hardware remains available and robust, IT teams must pay close attention to the rapid lifecycle of the underlying Cisco IOS XE ...
6. How to Fix: Cisco Catalyst Fabric Site Not Showing Edge Node
   Selene Gong

   38
   In a Cisco Software-Defined Access (SD-Access) environment, the Cisco Catalyst Center (formerly DNA Center) serves as the "single source of truth" for your network topology. A common issue faced by network administrators is when a Cisco Catalyst Fabric Site fails to display an Edge Node in the ...
7. Cisco C9300X-24Y-A vs 24Y-E: Feature Comparison & Enterprise Procurement Guide
   Selene Gong

   29
   When expanding or upgrading an enterprise network, Cisco Catalyst 9300X switches are widely used at the access layer. IT teams often face the question: should you choose the C9300X-24Y-A or 24Y-E model? Selecting the right SKU ensures features, licensing, and deployment timelines align with ...
8. How Cisco Licensing Impacts Catalyst 9300X Model Selection | Enterprise Guide
   Selene Gong

   30
   Selecting the right Cisco Catalyst 9300X model goes beyond hardware specifications. The licensing tier—Network Essentials (-E) vs. Network Advantage (-A)—dictates your network architecture, stacking capabilities, and long-term budget. Making the wrong choice can lead to feature gaps, ...
9. Understanding Cisco Catalyst 9000 Licensing: DNA Essentials vs Advantage Explained
   Selene Gong

   29
   Enterprise network upgrades to the Cisco Catalyst 9000 family (C9200, C9300, C9500) often stall at a surprising stage: licensing confusion. For many Network Architects and IT Procurement Managers, the challenge is not hardware selection—but understanding what they are actually paying for. The ...