Using an AI Agent to Inspect, Configure, and Troubleshoot a Cisco Network Lab Setup
Ok, I admit I was probably living under a rock that I am publishing this article this late, but that is the thing with being a father and just jumping … Read More
Containerlab.dev: Quick Network Lab Setup Using Cisco IOL Containers
Containerlab has quickly become a de-facto standard for building reproducible, lightweight network labs using containers. In this article, I will walk through a minimal “hello world” setup that uses Cisco … Read More
Network Topology Visualization #4 – Interactive Map Using D3 Javascript Library
This will be probably last visualization example for a while because I stopped working with network visualizations for some time now. But I wanted to finish publishing some last examples … Read More
vmWare vRealize Automation (with embedded vRO) – Full Example of Custom Resources for Executing Ansible Playbooks from Blueprints
This articles exists because I spend a lot of time in the last year inside vmware vRealize Automation (vRA) that includes an embedded vRealize Orchestrator (vRO) on a undisclosed project. … Read More
Network Topology Visualization #3 – Exploring other D3 visualization options for a DataCenter
Foreword First a disclaimer #1, in contrast to the previous articles, here I will NOT describe the collection of data that will be visualized because these datasets were manufactured manually for … Read More
[mini-update] Network Topology Visualization #2 – Using SNMP as data source and enhanced visuals
After a longer break, I managed to get back to my small visualization experiment from last time, and improve it a little. Firstly, the NETCONF interface was switched for a … Read More
Autopilot for Elite Dangerous using OpenCV and thoughts on CV enabled bots in visual-to-keyboard loop
Ok, first let’s get one thing clear. This is an educational project for me learning some computer vision algorithms (I want to make an insect identification system to protect a … Read More
Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript
Ok, this is a continuation of two streams of articles here, first my recent NETCONF tutorial here, and secondly my very old project (back then in Java) of visualization of … Read More
HP Networking/Comware NETCONF interface quick tutorial (using python’s ncclient and pyhpecw7)
So let’s learn about NETCONF, but first a bit of history and perspective. Everyone in networking business at least once heard about SNMP (Simple Network Management Protocol), which is the … Read More
[minipost] Protecting SSH on Mikrotik with 3-strike SSH ban using only firewall rules
After working with Mikrotik / RouterBoard routers for a long time, I recently needed to replace an aging old wifi router at my parents and the recent brand of very … Read More
Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches
The target was simple, we have an internal cloud datacenter at work that provides users and customers both virtual machines and physical machines. Each machine has to network interface cards … Read More
HPE’s DCN / Nuage SDN – Part 3 – REST API introduction
REST-full API, the new trendy bandwagon of cloud automation and SDN due to its simplicity and universal compatibility. TI is essentially a http transfer protocol with JSON payload. And if … Read More
[minipost] Capturing bidirectional traffic of virtual machine (VMs) on vmWare ESX 6.x
Here I was getting a trouble with communication between an ESX virtual machine and the nearby switch (Nuage/DCN controller VM talking with a VTEP switch if someone is interested) and … Read More
HPE’s DCN / Nuage SDN – Part 2 – First Steps Creating Virtual/Overlay Customer Network
In the previous part 1, we have installed basic HPE DCN system on a group of ESXi hosts. But we didn’t actually done anything inside it, so lets fix this … Read More
HPE’s DCN / Nuage SDN – Part 1 – Introduction and LAB Installation Tutorial
Nuage Networks is a spinoff from Alcatel-Lucent (now under Nokia as they acquisition Alcatel recently) and also a name of software defined network (SDN) overlay solution for datacenters and direct … Read More
Tutorial for small Hadoop cloud cluster LAB using virtual machines and compiling/running first “Hello World” Map-Reduce example project
I had Hadoop experience now for more than a year, thanks to a great series of Cloud Computing courses on Coursera.org, now after ~6 months of running via several cloud … Read More
Ping on you! – Beta 2.0 is online
Nicer, more stable, AJAX/JSON enabled pingonyou.com and also preparations in background to introduce the 24/7 Monitoring feature. So here we are. First a bit of short history, if you have … Read More
[minipost]Quick LAB/config example for IPv6 BGP between HP Networking Comware v5 andCisco
A small lab showing basic configuration of BGP between Cisco and HP (Comware v5). This is just something small we deploying recently, there is nothing grand here, only a minor … Read More
Ping on You! – small weekend web/CGI project
After a few previous web programming endeavors (both here on networkgeekstuff.com with SDN programming and in real life job) I had a taste to develop “something” and since I am … Read More
[minipost] Windows partition editing with diskpart
This will really be a micro-post as I only want to document this for my benefit. This is a way how to change partition table for disks, or USB sticks. … Read More
Checkpoint Firewall CLI tool “dbedit” and quick lab examples
In this article, I am going to give you a quick guide how to run a single checkpoint FW as virtual machine quickly on your notebook and then super-quick introduction … Read More
Tutorial for creating first external SDN application for HP SDN VAN controller – Part 3/3: “Node Cutter” SDN application in perl with web interface
In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for … Read More
Tutorial for creating first external SDN application for HP SDN VAN controller – Part 2/3: Influencing Flows via cURL commands
In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for … Read More
Tutorial for creating first external SDN application for HP SDN VAN controller – Part 1/3: LAB creation and REST API introduction
In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for … Read More