Articles by tag "Cisco Catalyst"

1. Extreme vs Cisco: Enterprise Core Switch Comparison 2025
   Selene Gong

   36
   In enterprise network architecture, core switches are critical for data centers, campus networks, and large-scale corporate networks. As network demands continue to grow, choosing the right core switch is essential for performance, reliability, and future scalability. Extreme Networks and Cisco ...
2. How to Build a Hybrid Campus Network Using Cisco Catalyst and Aruba Access Points
   Selene Gong

   39
   A hybrid campus network integrates enterprise-grade wired infrastructure with high-performance wireless access points, delivering a secure, scalable, and flexible environment for modern organizations. Cisco Catalyst switches provide robust core and distribution layer connectivity, while Aruba ...
3. Cisco Catalyst vs Meraki vs Aruba: Enterprise Network Comparison and Decision Guide
   Selene Gong

   32
   Choosing the right enterprise networking platform is a critical decision that affects security, scalability, operational costs, and long-term IT strategy. Among the leading options are Cisco Catalyst, Cisco Meraki, and HPE Aruba—each offering unique strengths, deployment philosophies, and ...
4. 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 ...
5. 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 ...
6. 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 ...
7. Best SFP, SFP+, SFP28 & QSFP Modules for Cisco Catalyst Switches (10G/25G/40G/100G)
   Selene Gong

   34
   Choosing the right transceivers for Cisco Catalyst switches—from 10G to 100G—is critical for ensuring network performance, reliability, and future-proofing. This guide provides a detailed overview for network engineers, IT managers, and enterprise procurement professionals, covering module ...
8. How to Choose Power Supplies for Cisco Catalyst 9300/9400/9500 Switches
   Selene Gong

   30
   Choosing the right power supply for your Cisco Catalyst switches is critical to ensure network reliability, minimize downtime, and support future expansion. Whether you're deploying Catalyst 9300 at the access layer, Catalyst 9400 in the distribution layer, or Catalyst 9500 at the core, ...
9. 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 ...
10. CRC Errors in Enterprise Network Switches: Causes, Troubleshooting, and Strategic Decisions
    Selene Gong

    38
    Your network dashboard shows all links are up. LEDs blink green, yet users complain: “File server is slow,” “VoIP calls drop,” or “Database connections time out.” CRC (Cyclic Redundancy Check) errors are silent performance killers. Unlike a hard link failure, data reaches the switch ...