Insights
Real fixes for real networks, written by the people who do the work.
Not a content marketing blog. Articles here are written by our field engineers after they close the ticket — the post-mortem of a fault you can fix at 2 a.m. without waiting for us. If you read one, you might not need to call us. If you still need us, we'll know you tried.
CCTV retention math: how many days of footage do you actually get?
A practical guide to calculating CCTV storage — bitrate per camera, RAID overhead, motion vs continuous recording, and why your 30-day contract is delivering 21 days. With worked examples for 16-camera and 256-camera systems.
OSPF neighbour stuck in EXSTART, INIT, or 2-WAY? Here's the real fix.
A field-tested guide to diagnosing OSPF adjacency problems. What each stuck state actually means, the show commands that find the cause, and the order to fix things in. With worked examples for Cisco, HPE, Aruba, and Juniper.
PoE budget math: the camera works on the bench, dies on the switch
Why your PoE camera works when you bench-test it but won't power up when plugged into the live switch. Class limits, total switch budget, cable length, and the four show commands that tell you exactly what's wrong.
Why your office Wi-Fi keeps dropping at 2 p.m. — channel planning for non-RF engineers
Co-channel interference, channel width trade-offs, the 1-6-11 rule, and why your 5 GHz is worse than your 2.4 GHz. A practical guide for the IT manager who didn't sign up for RF physics but is on the hook for the Wi-Fi working.
OFC link budget: how to know your fibre run will work before you blow the cable
Optical fibre link budget math, without the RF-physics pain. Transmitter power, receiver sensitivity, connector loss, splice loss, and the safety margin you actually need. With a worked 12 km example and the OTDR trace you'd expect to see.