Posts

Time Tracking Report: Juli 2020

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In this month, I still slept most of the time. Job still occupied the second place. I dedicated more time to my family than to eating, which is great. However, I added the Commute Time project, which came before the Wasted Time project. So I need to consider leveraging the commute time . Time Tracker July 2020

My New Workout Routine

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I wrote in a previous post that I dumped P90X, although I used to practice the P90X routines for years, without changing anything to my diet. Well that led to the fact that I did not notice big changes in my body, let alone in my physiology. I was always lacking energy and feeling drousy most of the time on weekends. Still, in the early days of my new journey in Germany, I continued doing P90X, sort of maintaining some level of a healthy lifestyle. But deep inside, I was not satisfied. I needed a new workout routine. For that matter, I imagined a list of criteria that must satisfy my new workout routine. What my new workout routine should look like the ideal workout routine for me should: focus on increasing energy, cardio health and overall body shaping be tried and tested by hundreds of people before me lead to a body shape that I want to have, or at least approach to have. not be some get six-pack abs quick scheme not exceed 30 minutes per day not require external accessories like j...

Time Tracking Report: June 2020

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This is my first time tracking report using Boosted app. In June I slept a lot. I’ve wasted 36 hours, ate for 35 hours and practiced religion for 20 hours. Time Tracker June 2020

Why I stopped Believing in Personal Development

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Part 1: the naive student From 2007 till mid 2019, I listened to audio programs or video shows of the following motivational speakers: Brian Tracy Abraham-Hicks Larry Winget Tony Robbins Robert Kyosaki Eric Thomas I used to think those guys had massive success in their life and wanted to share their wisdom with the world through audio books. But then I looked nearer and I got disappointed. Here is what you can read about them in Wikipedia : Don’t you spot the common trait among them? I neither read nor heard of them having some big real-life achievements, besides scoring best-selling books or seminars. All of the mentioned above are either authors, speakers, seminar gurus or all of it. And by the way, over the years I realized they seem to have more or less the same stuff to teach. I had only ephemeral success with either one of them. Nothing permanent. I had even almost all of Tony Robbins material, from Personal Power to Get The Edge, and I did not have the drive to explore the...

Why Network Engineers Need Physical Exercise

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Seeing a network engineer with a big belly or rounded body is not rare. Also, I have seen network engineers who are skinny to the point I feel sorry for them. But, do you see often a physically fit network engineer? I doubt so. I don’t know why this does happen. There is no direct correlation between the two. On the opposite: a network engineer must be fit or at least do regular physical exercise. Why do I mean with physical exercise? Being a network engineer means to me a guy or a gal who, not only moves his/her neurons in the job, but also the body. I know how pathetic working on a regular office job looks like: sitting on a desk the whole day staring at the computer screen, writing Emails, typing fiercely to make people think we are serious on the task, scratching the head while formulating the best political answer for the Email, counting the hours after the midday meal, signing delivery papers from IT partners… I have been there and I hated it. You need to move more. He...

Understand Basic VXLAN Concepts

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In this article I expose my study notes on the VXLAN technology with the Nexus 9000 product family, in both NX-OS and ACI mode. What is the purpose of VXLAN? Any network engineer can tell that we have a limitation with VLANs: we can have a maximum of 4094 unique VLANs on a single layer 2 domain. And a VLAN stops at the layer 3 boundary, where routing devices take the role to transport packets from one location/datacenter to another. That means, whenever we want to apply Live Migration (or vMotion) to a workload on a datacenter X to swap it to datacenter Y will not possible. In this sense, VXLAN facilitates workload-anywhere strategy, which encompasses workload mobility and reachability. General definition of VXLAN A VXLAN is a layer 2 tunneling scheme (i.e group of virtual tunnels) formed over a layer 3 network that plays the role of (in our case) a transport network . The transport network is usually a regular IP network running static or dynamic routing protocols and is called the ...

A Thousand-Dollar Networking Definitions

I gather in this blog post different networking definitions a network engineer may encounter (or may not, what a shame, LOL) in his journey. It will be a short article but bare with me, there are tricky nuances! Administrative layer 2 domain the layer 2 domain – or part thereof – that a network engineer manages. Layer 2 domain the network formed by the sum total of switches, hubs and any layer 2 devices in a network. The layer 2 domain is delimited by the existence of a device performing a layer 3 (routing) function. Layer 2 segment a portion of the layer 2 domain. It is usually defined by either VLAN or VXLAN technology. VLAN segment the collection of network hosts and nodes that belong to the same VLAN ID. Hosts on one VLAN segment “A” can not communicate inherently with hosts on a VLAN segment “B” unless there is a routing component (a layer 3 gateway) that performs inter-VLAN routing. Multitenant datacenter a datacenter where multiple organisation...