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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.

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.

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.

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.

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 presents multiple physical links as a single logical interface to the spanning tree algorithm, eliminating blocked ports and enabling true line-rate redundancy.