Ping Labz

CCNP-level networking tutorials — OSPF, STP, 802.1X, and BGP explained with real lab configs and topology diagrams.

Essential Cisco Commands: 50 Proven Commands

Fifty Cisco IOS commands every network admin and CCNA candidate should have in muscle memory, grouped by config, interface, routing, security, and troubleshooting.

2 min read Dec 23, 2024

VLAN public

Configuring SVIs (Switch Virtual Interfaces) for Inter-VLAN Routing

SVIs (Switch Virtual Interfaces) are logical VLAN interfaces that enable a Layer 3 switch to route between VLANs and provide management access. Master SVI creation, IP routing enablement, and troubleshooting SVI states.

11 min read Dec 23, 2024

Cisco public

Mastering ‘Show Interface Status’ in Cisco: Top 5 Essential Tips

show interface status tells you more than up/down. Here are five tips for reading it quickly: port status, VLAN, speed/duplex, errdisable, and description use.

4 min read Dec 23, 2024

Cisco public

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

Cisco public

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

Cisco public

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

Cisco public

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

Cisco public

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

Cisco public

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

VLAN public

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.

7 min read Dec 23, 2024

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