It’s 2016. In contrast to the Networks of yester-years, Enterprise Networks can no longer be summarized as just a couple of rows of cabinets in a datacenter. Today, when we say large-scale enterprises, we’re referring to a few hundred rows , multiple datacenters, several clouds, routers providing connectivity between different vrfs, and wan conections to … Read more
The IPv6 future is ‘now’ Lets stop kidding ourselves about IPv6- Our pool of 32-bit IPv4 addresses have already been depleted. ARIN already ran out of IPv4 addresses last year – meaning that there is no more room in the internet. Yeah NAT helps – but its just a bandaid … delaying the inevitable. Thats no … Read more
Network architects often seem to be at a loss for words when asked to describe Network Automation. This is understandable though. Automation is a broad subject. From provisioning, to telemetry and monitoring, there are several faces to automation. What is Network Automation? For many small to medium enterprises, automation is nothing more than scripting a … Read more
Ever since I’d moved my hosting from vanilla EC2 to docker, I’d been getting plagued by timeouts between NGINX and php-fpm. At first, the issue appeared to be on the fpm side, as these NGINX error-logs showed with a message saying ‘nginx upstream timed out’ Logging the heck out of it When you don’t know … Read more
If you are in the business of Architecting and Automating Networks, then some level of proficiency in programming is mandatory. Sixteen years ago, when I started in the field of Networking, this was barely considered to be something necessary. Interviews for Network Architects zoned in on protocols, network types, design methodologies, and safely sidestepped automation … Read more
