Resetting Counters on Cisco Switches
Clear interface counters on a Cisco switch with clear counters to reset a baseline before troubleshooting. Here is how to use it safely and verify errors.
Jaime
Latest posts — page 62
How to Audit Switch Ports on Cisco Catalyst Switches
What is on each port, should it be, and is the port enforcing that? A real port audit on a Catalyst switch, including a genuine port-security violation that fired mid-lab.
How to Configure HTTP Method on a Cisco Switch
Enabling HTTP or HTTPS on a Cisco switch takes ip http server, secure-server, AAA, and a trustpoint. Here is the config, the security hardening, and the gotchas.
How to Check Your Cisco Switch Warranty
Check a Cisco switch warranty by grabbing the serial from the chassis or show inventory, then running it through the Cisco Serial Number Info Finder.
EtherChannel Fundamentals: Link Aggregation, PAgP vs LACP, and Load Balancing
EtherChannel presents multiple physical links as a single logical interface to the spanning tree algorithm, eliminating blocked ports and enabling true line-rate redundancy.
VLAN Naming, Ranges, and Management Best Practices on Cisco IOS XE
Deep dive into VLAN naming conventions, the difference between standard and extended range VLANs, and best practices for VLAN management and deletion on Cisco Catalyst switches.
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
A complete HSRP deployment with object tracking on IOS XE, broken on purpose: the track falls, priority drops 110 to 90, the standby preempts, and the host never notices. All output captured live.
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.