Engineer Lab

Can you stack a new Catalyst 1300 with an older CBS350? While early 2023 documentation said no, Cisco's latest 2026 firmware updates silently introduced a "Mixed Stacking Mode." However, this migration feature comes with a massive cost. In this Engineering Lab report, CCIE David Lorame reveals the hidden CLI commands to merge the switches, and explains the 3 severe performance penalties-including 10G bottlenecks and SSO failure-that you must know before deploying.

Are you deploying Wi-Fi 6E or Wi-Fi 7 access points in a smart building? While the Cisco Catalyst 1200 is an excellent budget edge switch, its 30W PoE+ limit hides a serious bottleneck. In this lab report, CCIE David Lorame reveals what happens to your expensive Wi-Fi 7 APs when they negotiate power, including data on degraded radio modes, disabled USB ports, and severe chassis thermal limits under heavy load.

This Engineer Lab article reports Network-Switch observations from a Catalyst 1200-24P-4G configured with 512 ACL rules and Inter-VLAN routing, while clearly identifying the missing public test metadata and raw evidence. Use it to plan a model-, firmware-, and workload-specific acceptance test, especially before enabling ACL logging under load.

Deploying a Cisco Catalyst 1200 in an air-gapped network? Without internet access, Cisco’s Smart Licensing (SLP) will relentlessly spam your console with Call Home communication errors. Skip the heavy On-Prem servers. In this Engineering Lab guide, CCIE David Lorame reveals the exact CLI steps to locally activate your switch using Specific License Reservation (SLR), or completely silence the SLP warnings using advanced syslog discriminators.