Cisco PVST Guide: Spanning Tree for Every VLAN
Master PVST (Per-VLAN Spanning Tree) on Cisco switches — learn configuration, root bridge design, port roles, and common troubleshooting tips.
Jaime
Latest posts — page 60
Troubleshooting SVI Up/Down Issues on Cisco Catalyst Switches
An SVI stuck in up/down means something is wrong with the underlying VLAN — no active ports, a deleted VLAN, or STP blocking every path. Here is how to diagnose and fix every cause.
Top CCNA Network Simulators: Hands-On Review & Guide
Explore the top CCNA network simulators I tested, hands-on insights, pros & cons, and tips to choose the right one for your study lab.
802.1X on Cisco Switches: Step-by-Step Configuration Guide
Learn to configure 802.1X port-based network access control on Cisco switches — includes RADIUS setup, switch commands, troubleshooting, and best practices.
HSRP High Availability: Configure Cisco HSRP Step-by-Step
Learn how to deploy Cisco HSRP for gateway redundancy, including detailed steps, priority settings, tracking, failover behavior, and verification commands.
VLAN Trunking Explained: 802.1Q, Allowed Lists, and Trunk Negotiation
Learn why VLAN trunks exist, how 802.1Q tagging works, the difference between ISL and 802.1Q, and how allowed VLAN lists and trunk negotiation function in Cisco networks.
Cisco Port Security Guide: Lock Down Your Network Ports
Master Cisco port security techniques to prevent unauthorized devices from joining your LAN — step-by-step commands, violation modes, and best practices included.