Articles by tag "VLAN"

1. Why Did My Cisco IoT VLAN Stop Working After Upgrading to IOS XE 17.9.6?
   Selene Gong

   41
   Did you just upgrade a Cisco Catalyst 9300/9400 switch to IOS XE 17.9.6 (sometimes searched for as 17.09.06), only to find your IoT devices can't get an IP address or connect to the network? You're not alone, and it's not your configuration—it's a known software bug. This guide will walk you ...
2. How Many VLANs Are Supported on Cisco Catalyst 9300?
   Selene Gong

   28
   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 ...
3. Best Practices for Integrating Palo Alto Firewalls with Cisco Core Switches
   Selene Gong

   19
   Integrating Palo Alto firewalls with Cisco core switches is a common requirement for enterprises seeking to secure their network while maintaining high performance and reliability. This guide provides actionable best practices, technical insights, and implementation recommendations for IT teams, ...
4. The Two Actions Performed by a Cisco Switch: Learning & Forwarding Explained
   Selene Gong

   21
   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 ...
5. Cisco 9300 Day-0 Configuration Guide: Username, Password, SSH & Security Best Practices
   Selene Gong

   40
   ...
6. How to Factory Reset a Netgear Smart Switch
   Selene Gong

   20
   Whether upgrading an office network, recovering a lost administrative password, or redeploying a refurbished switch, restoring a Netgear Smart Switch to its factory default settings is often critical. For SMB IT teams, network administrators, and IT integrators, performing this safely reduces ...
7. Ubiquiti Switch Reset: The Enterprise & SMB Guide for Recovery, Deployment, and Network Continuity
   Selene Gong

   19
   ...
8. ZTE Router Login Guide for SMBs and Network Professionals – Access, Troubleshoot, and Secure Your Device
   Selene Gong

   21
   Accessing a ZTE router or ONT is not just a home user task. For SMBs and network professionals, proper login is critical for: Configuring VLANs, QoS, and bandwidth controls Enabling bridge mode for enterprise routers (Cisco, HPE, Ubiquiti) Performing secure firmware updates and maintaining ...
9. Access Port vs Trunk Port: Ultimate Guide to Avoid VLAN Misconfigurations in Enterprise Networks
   Selene Gong

   18
   In enterprise network deployments, few decisions are as deceptively simple—and as potentially disruptive—as choosing between access ports and trunk ports. On paper, the difference seems straightforward, but in production environments, misclassifying a port can quietly break connectivity, ...
10. Managed vs Unmanaged Switch: How to Choose the Right Network Hardware for Your Business
    Selene Gong

    18
    In any network deployment, selecting the right switch is more than just plugging in devices. The choice between a Managed and an Unmanaged Switch can significantly affect network performance, security, and operational costs. Choosing incorrectly can lead to congestion, security vulnerabilities, ...