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Mike Lossmann

@mikelossmann

Networking Thought Leader and Speaker. Self Proclaimed Coffee Snob, Bourbon Enthusiast, Network Architect turned Technical Evangelist. My opinions are my own.

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09.10.2023
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Latest posts by Mike Lossmann @mikelossmann

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OSPF Troubleshooting Guide: Fix Neighbor + Routing Issues Fast A practical OSPF troubleshooting guide covering broken adjacencies, missing routes, and the fastest ways to diagnose issues.

OSPF rarely breaks randomly.
It exposes MTU mismatches, bad links, or forgotten configs.

Here’s a real-world guide to troubleshooting OSPF like an architect — practical, no slides.
bit.ly/3OUNcgk

#networking #OSPF #neteng #routing

25.02.2026 15:30 👍 0 🔁 0 💬 0 📌 0

OSPF gets a lot simpler after your first real outage.

Design lessons from the field:
protect Area 0, summarize early, respect redistribution.

Built from scars, not theory.

bit.ly/4cGMw8d

#OSPF #NetEng #Networking #Routing

24.02.2026 15:30 👍 0 🔁 0 💬 0 📌 0

OSPF isn’t magic.
It’s math, structure, and one very honest algorithm.

If you’ve ever wondered how routes are actually chosen, this dives into the SPF algorithm in plain English.

Clear, practical, architect-level.

bit.ly/3OrI0R1

#OSPF #Networking #Routing #NetworkEngineering #NetArch

23.02.2026 15:30 👍 0 🔁 0 💬 0 📌 0

LSAs are the part of OSPF everyone pretends to understand.

Type 1–7. Flooding. NSSA weirdness. Real-world failure modes.

If you design networks, you need this.

No fluff. Just clarity.

bit.ly/4rmrW1z

#OSPF #Networking #NetworkEngineering #Routing

20.02.2026 15:30 👍 0 🔁 0 💬 0 📌 0

Most engineers memorize OSPF areas.

Few understand why they exist.

Areas aren’t about hierarchy — they’re about containing chaos, limiting SPF blast radius, and keeping your core alive when things flap.

bit.ly/3MjJDjb

#OSPF #NetworkEngineering #Routing #NetArch #CCNP #CCIE

19.02.2026 15:30 👍 0 🔁 0 💬 0 📌 0

OSPF has a reputation for being complex, but most of that comes from learning it backwards. This post is a practical intro to what OSPF actually is, how it works, and why architects still trust it in real networks.

bit.ly/3ZGll5R

#networking #OSPF #NetEng #Routing #NetworkEngineering

18.02.2026 15:40 👍 0 🔁 0 💬 0 📌 0

OSPF neighbor formation isn’t just a diagram — it’s a journey.

From the first Hello to Full adjacency, and the real-world lessons in between.

bit.ly/4687c5g

#Networking #OSPF #NetEng

17.02.2026 15:40 👍 0 🔁 0 💬 0 📌 0
Tech Skills Are Not Enough Without This One Thing
Tech Skills Are Not Enough Without This One Thing YouTube video by The Bearded I.T. Dad

I had the pleasure of being on the @thebeardeditdad.com 's podcast to discuss soft skills and why they matter. It is often overlooked that technical chops is one thing but soft skills matter more than people think. Once I realized this it paid dividends. youtu.be/Axn7zsR1qFI?...

27.01.2026 17:00 👍 3 🔁 1 💬 0 📌 0

To all the #Networking #contentcreators out there, are you editing short form video in your traditional editing tools like FCP / DaVinci or are you using CapCut? What are the pros and cons?

17.10.2025 18:31 👍 0 🔁 0 💬 0 📌 0

Cant access the internet on a newly deployed firewall? Stop the guessing game. 9/10 times, its NAT. Let's make you the one who can fix it, every time. Watch the full guide on how to setup your first nat rileNAT: youtu.be/Ec_UDxq3adg

#PaloAltoNetworks #NAT #Firewall #NetSec

16.10.2025 14:00 👍 0 🔁 0 💬 0 📌 0
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How to Configure Your First Palo Alto Security Policy (The Right Way) - Mike Lossmann our firewall is just a brick without the right rules. Learn to configure your first essential Palo Alto security policy for outbound internet traffic using App-ID and master your network's security.

Confused about your first Palo Alto security rule? Forget old ACL thinking! We're ditching the noise & showing you how to build a policy that actually secures your network.
bit.ly/478wAY7

#PaloAltoNetworks #FirewallConfig #Cybersecurity #NGFW #SecurityPolicy #AppID

14.10.2025 15:05 👍 0 🔁 0 💬 1 📌 0

Just unboxed a shiny new Palo Alto firewall? Let's get it configured!
I wrote a quick-start guide to take you from the default login to a hardened, network-aware state with properly defined zones. No more guessing what to do first.
bit.ly/46GIGZy
#infosec #paloalto #firewall #netsec

09.10.2025 13:14 👍 0 🔁 0 💬 0 📌 0
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When they said neon green, I didn’t think it would be this bright…….

08.10.2025 16:47 👍 0 🔁 0 💬 0 📌 0
"Where's That Website?" - Your Browser's First Call to the DNS Phone Tree
"Where's That Website?" - Your Browser's First Call to the DNS Phone Tree YouTube video by Mike Lossmann

It's not always DNS... but what is DNS, really? 🤔
My new video is a clear breakdown of how domain names become IP addresses, tracing the whole journey of a web request.
YouTube: youtu.be/EoVrU8Gox7w
Blog: bit.ly/46y7Fy6
#DNS #Networking #HowTheInternetWorks #Networking #TechExplained

03.10.2025 14:04 👍 0 🔁 0 💬 0 📌 0

Tampa tech friends! The next #FLNUG meetup is ONE WEEK away!

Join us on Oct 9th at Coppertail Brewery 🍻 for a deep dive into #Containerlab and everyone's favorite, the (FL)NUG panel You don't want to miss this!

Register here: bit.ly/4mIIduw

#Tampa #Networking #TechEvent #NetDevOps

02.10.2025 13:54 👍 0 🔁 0 💬 0 📌 0

Tired of renting lab time? Stop!

I've got the full guide to install EVE-NG Community on your Proxmox server. Get ready to take your labing to the next level.

👇 Full Tutorial & Blog Post:
youtu.be/r1EOYHviLzw
bit.ly/46XmCd6

#EVE_NG #Proxmox #Homelab #Networking #CCNA

26.09.2025 15:46 👍 1 🔁 0 💬 0 📌 0
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This hit home. It’s not a lack of ideas holding you back; it's the need for everything to be perfect before you even begin. Your "bad" first draft is a necessary step toward the great hundredth draft. Let go of the fear and just start creating.

#creators #perfectionism #ProgressNotPerfection

23.09.2025 14:35 👍 0 🔁 0 💬 0 📌 0
Troubleshooting Complex Multi-Cloud Connectivity Issues with Forward Enterprise
Troubleshooting Complex Multi-Cloud Connectivity Issues with Forward Enterprise YouTube video by Forward Networks

Ever get pulled into a cloud troubleshooting call for a cloud you don't know? Forward Enterprise quickly cuts through the noise to get you the insights you need. #CloudOps #NetOps #NDT #ForwardNetworks #Troubleshooting youtu.be/6EDVLGf1cDs?...

22.09.2025 20:22 👍 0 🔁 0 💬 0 📌 0

#dragoncon is always a good time! I need to get back

31.08.2025 21:13 👍 0 🔁 0 💬 0 📌 0
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Have you ever received one of those tickets where the user says, “Oh, this was slow a few hours ago—I just remembered to submit a ticket…”? @mikelossmann.bsky.social has. At tomorrow's #DemoTuesday, Mike shows how #ForwardEnterprise can help in this exact scenario!
www.linkedin.com/events/73462...

07.07.2025 23:39 👍 2 🔁 2 💬 0 📌 0
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After a successful #ciscolive, it’s time to go off the grid for a week for a much deserved vacation.

15.06.2025 16:39 👍 1 🔁 0 💬 0 📌 0
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Tech Evangelist Journey: From Architect to Stage at Cisco Live From hating public speaking to tech evangelism: Discover a unique career journey shaped by key mentors and highlighted by Cisco Live. Come along for a ride on my tech evangelist journey.

Want to hear a confesstion, I used to hate public speaking. I wrote a blog about my Cisco Live confession here: bit.ly/3ZtNwFE #CLUS #CiscoLive #Networking #Career #CareerGrowth

13.06.2025 20:58 👍 0 🔁 0 💬 0 📌 0
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When Keith Barker, the person who taught me networking, compliments my #CLUS presentation, I know I'm on the right track! Catch me at Forward Networks booth 3919 for a demo, poker chip, and a chance to play roulette to win some cool prizes. #ForwardNetworks #NDT #CiscoLive

11.06.2025 19:19 👍 1 🔁 0 💬 0 📌 0
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First presentation was a packed house! Don’t miss your chance to see ay one of these demos I am giving at Forward Networks, Inc. booth 3919. Sit for a demo and get a poker chip to play roulette for a chance to win cool some prices. #ForwardNetworks #NDT #CLUS #CiscoLive

09.06.2025 19:21 👍 0 🔁 0 💬 0 📌 0
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As I’m sitting in Atlanta airport waiting to get on my flight to #clus, I can’t help but think about the past and how I used to think. This hit home and wanted to share it. Hopefully it helps someone along the way. Hope everyone has safe travels today and see you all there!

08.06.2025 14:14 👍 1 🔁 0 💬 0 📌 0
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Relevance of IT certifications in 2025? My Honest Review & Advice From collecting 50 IT certifications to questioning their value: One tech expert's honest take on the relevance of IT certifications in 2025

50 technology certs?! Was I crazy? My take on if they STILL matter in 2025! bit.ly/43G6w4X #ITCareer #TechLife

28.05.2025 14:05 👍 0 🔁 0 💬 0 📌 0
Finding My Voice in Tech: A Journey Through Doubt, Growth & Grit - Mike Lossmann Discover how one engineer overcame fear and self-doubt to become a tech evangelist, with lessons for every IT professional on the rise.

I Flipped a coin at 20 to choose my career path. Didn’t think it would lead to a career in tech, let alone becoming a Technical Evangelist. This is my journey from enterprise>sales>big 4 consulting to a Technical Evangelist
bit.ly/42VzjDr
#Tech #ImposterSyndrome #CareerJourney #NetworkEngineer

13.05.2025 14:01 👍 0 🔁 0 💬 0 📌 0

Excited to be heading back to #RSAC this year!
Forward Networks is turning network data into security superpowers. Come see the magic at booth S-1055.
Stop by, say hi, and get a glimpse of network security intelligence even 007 would envy.

16.04.2025 19:45 👍 1 🔁 0 💬 0 📌 0

Excited to bring back Demo Tuesday!
In the first session, I’ll be cleaning up some old routing policy—what could possibly go wrong, right? Join me on April 15th at 2PM EST to see what does go wrong (and how Forward Networks, Inc. can help when things go sideways).

10.04.2025 19:22 👍 0 🔁 0 💬 0 📌 0

My last android phone was a Galaxy Note 2 as well. With the family and the kids it’s so easy to communicate. I am starting to get annoyed with the lack of customizability. All my android friends are telling me to switch and all my apple friends are like no stay! Still doing more research.

08.02.2025 11:14 👍 0 🔁 0 💬 0 📌 0