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.
Archive
Latest posts — page 61
10 Cisco Port Audit Steps for Amazing Network Security
A thorough Cisco port audit hits port status, VLANs, port security, 802.1X, CDP/LLDP, STP role, errors, and unused-port shutdowns. Here are ten repeatable steps.
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.
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.
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.