The human race needs IPv6

Posted On Mar-17

You say 4 billion addresses. I say its less than the 7 billion people on our planet. And welcome to the internet-of-things. If you add up everything on the planet that would need an IP by the end of the decade, 7 billion wont cut it either.


The Era of Network-Modeling

Posted On Mar-12

In a stable Network, the state and intent are converged. From the perspective of Monitoring, the State is always the source-of-truth. Anything that should be monitored…

ajay divakaran

Thinking beyond Network Automation

Posted On Mar-03

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.

Ajay Divakaran

nginx upstream timeout and php5-fpm

Posted On Mar-02

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.


Network Automation and Endian

Posted On Feb-01

These days, however, my first few interview questions are usually about Automation, and conceptualization of a Network as a data model. After all, Routing protocols are just software implementation of some algorithm on steroids.

fastsnmpy ajay divakaran


Posted On Jan-17

BulkWalk methods are missing from native python-bindings for net-snmp. By creating a wrapper around the GetBulk method instead, and maintaining state while traversing the oid-tree, fastsnmpy provides a clever solution


So I’ve decided to work on my CCIE (again!)

Posted On Nov-04

Being that this is the year of SDN, and very few people can refrain from tossing in some kind of SDN related acronym at every meeting, I decided to take a break from the SDN chit-chat and delve into pure networking for a bit (if thats even possible.)
Perhaps I’ll go for a certification, or two.