My Favorite Resume Puffs
Have you ever seen – or perhaps even submitted – a resume (or “CV” for some European friends) where certain parts of it were only there either to ensure that you sorted higher in the […]
Articles by John Herbert
GNS3 – Running A Single Router
GNS3 GNS3 really is a great tool, and I use it quite often to simulate routed networks. I also use it at times just to quickly validate syntax (assuming I have the right IOS versions […]
Working With Numbered Access-Lists
Back in the day, I didn’t have any white hairs, you could get a bag of potato chips for a quarter, kids didn’t behave badly, and numbered access-lists were all you had to work with […]
Those Pesky Active BGP Sessions
You’re troubleshooting a routing problem; you check BGP and the neighbor shows as active. Great, let’s move on and look somewhere else. Right now a good proportion of you should be shouting at your screen […]
An Open Letter Regarding AS-Path Access-Lists
Dear Cisco, Re: AS-Path Access-lists May we please have named as-path access lists in IOS? I’m really bored of my self-documenting configurations being effectively obfuscated by these ugly numbers I have to use in match […]
Test Your Troubleshooting Skillz
Image courtesy of Ambro / FreeDigitalPhotos.net Here’s a quick test of your psychic troubleshooting skills. I’ll give you a real life scenario, and you try to figure out what’s wrong. Sound like fun? Go on, give […]