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About Author: Peter Havrila
Posts by Peter Havrila
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![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 […]](https://networkgeekstuff.com/wp-content/uploads/2019/09/Thumbnail-115x115.png "[mini-update] Network Topology Visualization #2 – Using SNMP as data source and enhanced visuals")
[mini-update] Network Topology Visualization #2 – Using SNMP as data source and enhanced visuals
Posted on September 17, 2019 | 17 CommentsAfter 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2018/08/Thumbnailproject-115x115.gif "Autopilot for Elite Dangerous using OpenCV and thoughts on CV enabled bots in visual-to-keyboard loop")
Autopilot for Elite Dangerous using OpenCV and thoughts on CV enabled bots in visual-to-keyboard loop
Posted on August 11, 2018 | 25 CommentsOk, 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2017/12/thumbnail-3-115x115.png "Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript")
Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript
Posted on December 12, 2017 | 17 CommentsOk, 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2017/12/thumbnail-2-115x115.png "HP Networking/Comware NETCONF interface quick tutorial (using python’s ncclient and pyhpecw7)")
HP Networking/Comware NETCONF interface quick tutorial (using python’s ncclient and pyhpecw7)
Posted on December 11, 2017 | 6 CommentsSo 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2017/09/Thumbnail-115x115.png "[minipost] Protecting SSH on Mikrotik with 3-strike SSH ban using only firewall rules")
[minipost] Protecting SSH on Mikrotik with 3-strike SSH ban using only firewall rules
Posted on September 9, 2017 | No CommentsAfter 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2017/05/thumbnail-115x115.png "Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches")
Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches
Posted on May 26, 2017 | 1 CommentThe 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2016/12/thumbnail-115x115.png "HPE’s DCN / Nuage SDN – Part 3 – REST API introduction")
HPE’s DCN / Nuage SDN – Part 3 – REST API introduction
Posted on December 26, 2016 | 1 CommentREST-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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2016/12/Thumbnail-115x115.png "[minipost] Capturing bidirectional traffic of virtual machine (VMs) on vmWare ESX 6.x")
[minipost] Capturing bidirectional traffic of virtual machine (VMs) on vmWare ESX 6.x
Posted on December 10, 2016 | 1 CommentHere 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2016/09/thumbnail-115x115.png "HPE’s DCN / Nuage SDN – Part 2 – First Steps Creating Virtual/Overlay Customer Network")
HPE’s DCN / Nuage SDN – Part 2 – First Steps Creating Virtual/Overlay Customer Network
Posted on September 23, 2016 | 6 CommentsIn 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 […] -
![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 […]](https://networkgeekstuff.com/wp-content/uploads/2016/08/thumbnail-115x115.png "HPE’s DCN / Nuage SDN – Part 1 – Introduction and LAB Installation Tutorial")
HPE’s DCN / Nuage SDN – Part 1 – Introduction and LAB Installation Tutorial
Posted on August 1, 2016 | 8 CommentsNuage 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 […]
