Design multihomed networks
Two providers, one calm engineer. Learn how real resilience is built — and how traffic actually chooses a path.
FREE COURSE — BY KYLE MELCHER, NETWORK ENGINEER
The Internet speaks BGP.
Learn its language. A free course that takes you from “what’s an AS?” to designing and troubleshooting real networks with confidence — minus the fluff.
- 6 MODULES
- REAL-WORLD LABS
- 100% FREE
// WHY BGP
Every packet that leaves your network trusts BGP to find the way.
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PREFIXES IN THE GLOBAL ROUTING TABLE
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NETWORKS (ASes) ANNOUNCING ROUTES
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BGP’S FIRST RFC. STILL RUNNING THE SHOW.
Troubleshoot like a senior
Flapping sessions, missing routes, weird next-hops — get the mental model that turns panic into a checklist.
Speak provider, fluently
Communities, prepends, local-pref. Stop guessing on support calls — tell your ISP exactly what you need.
// THE FEELING
From “what’s an AS?” to this. Six lessons.
↳ TWO SESSIONS ESTABLISHED. FULL TABLE. GO GET COFFEE.
// THE FREE COURSE
Six modules.Zero fluff.
Delivered to your inbox. Read in minutes, lab in an evening, use for the rest of your career.
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02
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03
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05
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06
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First contact
What BGP is, why it exists, and the OPEN handshake — session states without the mystery.
eBGP vs iBGP
Peering between networks vs inside your own — and why iBGP full-mesh makes grown engineers cry.
Path attributes
AS-path, local-pref, MED. How best-path selection really decides where your traffic goes.
Policy & filtering
Prefix-lists and route-maps: control exactly what you announce and what you accept.
Communities
Tag routes, steer traffic, and speak your provider’s language like you’ve done it for years.
Troubleshoot & verify
Flaps, missing routes, bad next-hops — a calm, repeatable playbook for when it’s all on fire.
// ABOUT KYLE
Hi, I’m Kyle.
I’m a network engineer who has spent years building, breaking and fixing BGP in production. This course exists because BGP has a reputation it doesn’t deserve: hard, scary, “senior-only”.
It’s none of those things. BGP is a conversation between routers — and once you learn how that conversation works, the whole Internet starts making sense. I’ll teach you the way I wish someone had taught me: plain language, real configs, no fluff.
- NETWORK ENGINEER
- BGP EDUCATOR
- ZERO-FLUFF POLICY
— Kyle Melcher / bgpengineering.com
GET THE COURSE. FREE.
Six modules, straight to your inbox. Start understanding the Internet today.
// FAQ
Fair questions,honest answers.
Is it really free?
Really. The full six-module course lands in your inbox at no cost. If you love it, there may be deeper material later — but the free course is complete on its own, not a teaser.
Who is this for?
Network engineers, sysadmins and cloud engineers who keep bumping into BGP and want to finally own it. If you know what an IP address and a router are, you’re ready.
Do I need expensive lab gear?
No. Everything can be labbed with free tools on your laptop. The course shows you exactly how to build a practice environment that behaves like the real thing.
How much time does it take?
Each module reads in minutes and labs in an evening. Go at your own pace — the emails will wait, and the fundamentals never expire.
I’m brand new to networking — too early?
If you’re comfortable with basic routing concepts you’ll be fine. Module one starts from “why does BGP exist?” — no prior BGP knowledge assumed, ever.