Network engineering, explained without the sales pitch.

Five BGP mistakes I still see after 20 years

A 12–15 minute direct-to-camera and whiteboard video explaining weak policy, flat local preference, poor filtering, missing RPKI and untested failure behaviour.

Suggested running order

1. Why an established BGP session proves very little.
2. Five mistakes and how they appear in production.
3. A short anonymous multi-carrier example.
4. The checks viewers can complete this week.
5. Invitation to read the full guide or discuss an architecture review.