Cisco

Cisco networking tutorials covering IOS and IOS-XE configuration, platform features, and hands-on guides for routing, switching, and security across Cisco hardware and software.

134 posts

How to Factory Reset a Cisco Switch

Factory resetting a Cisco switch means clearing the config, VLAN database, and sometimes the boot variable. Here are the safe methods and pre-reset prep.

3 min read Dec 23, 2024

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How to Check CDP Neighbors on Cisco ASA

Checking CDP neighbors on a Cisco ASA is a two-command job once CDP is enabled. Here is how to turn it on, read show cdp neighbors, and map your topology.

1 min read Dec 23, 2024

Cisco public

How to Set IP Address on Cisco Switches

A Cisco switch gets its management IP on an SVI (usually VLAN 1 or a dedicated mgmt VLAN). Here is the config, the default gateway step, and SSH-readiness.

2 min read Dec 23, 2024

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How to Import Files to Cisco Router

Get files onto a Cisco router with TFTP, SCP, or USB. Here is how to set up a TFTP server, use copy tftp: flash:, and avoid the common transfer gotchas.

4 min read Dec 23, 2024

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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.

2 min read Dec 23, 2024

Cisco public

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.

4 min read Dec 23, 2024

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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.

3 min read Dec 23, 2024

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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.

1 min read Dec 23, 2024

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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.

3 min read Dec 23, 2024

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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.

6 min read Dec 23, 2024

Cisco public

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.

3 min read Dec 23, 2024

Cisco public

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.

2 min read Dec 21, 2024