VMware
Chronological briefs tagged with VMware.
February 2021
May 2020
On future of kubernetes
Everyone is talking about Kubernetes, but is it really that big of a deal? What's going to happen to it in 5, or 10 years?
December 2019
How failing VCDX changed my life
I started my professional career in 2003, in a NOC (Network Operations Center), making sure that Network and Security services of the VIP customers of the ISP (Internet Service Provider) ran smoothly.
July 2019
What is Service Mesh and do I need one?
Or... are we just using it cause it's the next cool thing?
February 2019
Kubernetes Proxy: Envoy vs NGINX vs HA Proxy
Having spent quite some time with Linux and Kubernetes admins, I've come to realize that networking isn't one of their strong sides.
November 2018
How I prepared for AWS SA Professional exam
Last week I managed to pass the AWS Solution Architect professional certification exam. Here's my certification, in all its glory:
August 2018
Why SDN isn't where we thought it would be
The SDN hype started a few years ago. Everyone was talking about it as the next big thing, and it all made so much sense.
Migrate HyperFlex Cluster to a new vCenter
Get ready to have your mind blown. One of the easiest procedures I've encountered.
June 2018
Install PowerCLI on Mac, start using PowerNSX
This is something I've been wanting to publish for a while, and finally my Mac got formatted (no questions will be taken at this point...) and I had to re-install it all, and I just couldn't find the instructions on...
February 2018
Google Cloud Architect, why and how to prepare for the exam
In the last many years I've been strongly focusing on the Cloud. I have to admit though that due to various conversations with my customers, Public and Hybrid models have been getting more and more attention, and I...
January 2018
What is NSX-T, and how to build a Home Lab
Let me start by saying that I've been a big NSX fan ever since it came to the market. I was one of the first CCIEs to get to the VCIX-NV (VMware Certified Network Virtualization Expert).
December 2017
OpenStack Networking, Explanation for Humans
\- OpenStack Neutron and OVS (Open Virtual Switch) translated to the Network Engineers language
June 2017
On PaloAlto and NSX Integration
The VM-Series firewall for VMware NSX is jointly developed by Palo Alto Networks and VMware.
How to sell SDN
The most important thing about presenting SDN to a potential Customer, and about how you need to focus your Presentation, and I cannot stress this enough: your entire speech needs to be adapted to your audience.
Nuage Networks VSP Deep Dive
Ever since Cisco bought Insieme and created Cisco ACI, and VMware bought Nicira and created NSX, I've been intensively deep-diving and blogging about both these solutions, how they compare to each other and to some...
What are Cisco Cloud Center (CliQr) and UCS Director, how to choose/integrate?
Before we get into the details about each technology, and how you should choose which one best fits in your environment, I would strongly advise you to sit down and think about what exactly you need, what would be...
April 2017
What is NFVi or Cisco NFV Infrastructure, and where exactly does it "fit"?
VNF (Virtualized Network Function) refers to the implementation of a network function using software that is decoupled from the underlying hardware.
December 2016
Which SDN solution is the right one for me? NSX vs ACI vs Nuage vs Contrail
This is a question I've been getting A LOT in the last few years, and even though it sounds rather simple, somehow it gets really complex to convince all the parties (Developers, Systems/Virtualization and Network...
April 2016
Cisco ACI and OpenStack Integration: RedHat vs Mirantis
Note: This post requires basic knowledge of Cisco ACI architecture and ACI logical elements, as well as understanding of what OpenStack is, what the OpenStack elements (Projects) do, and the principles of what OVS...
Cisco ACI and OpenStack Integration: RedHat vs Mirantis
Note: This post requires basic knowledge of Cisco ACI architecture and ACI logical elements, as well as understanding of what OpenStack is, what the OpenStack elements (Projects) do, and the principles of what OVS...
Cisco ACI Service Graph (L4-7), ADC: F5 vs NetScaler
Note: This post requires basic knowledge of Cisco ACI architecture and ACI logical elements, as well as understanding of what ADC is, and the basic principles of Load Balancing and SSL.
January 2016
Cisco ACI Guide for Humans, Part 1: Physical Connectivity
First of all, I need to explain why I decided to write such a post. It's quite simple to everyone who ever tried to Deploy/Configure/Understand how Cisco ACI works using the official Cisco Documentation.
December 2015
SDN Wars: Cisco ACI vs VMware NSX
In the last few years, with an exponential growth of interest in the SDDC (Software Defined Data Center), many vendors have shown an interest, and some have even managed to engineer a more-or-less decent SDN...
Cisco ACI: AVS and Hypervisor Integration
At this point I will assume that you already read my previous posts about: Cisco ACI Fundamentals.
Cisco ACI Fundamentals: ACI Components
Before we get deeper into the ACI (Application Centric Infrastructure) as the Cisco's official SDN solution, we need to clarify a few terms that will be used:
Can OpenStack Neutron really control the Physical Network?
This is a question I´ve been hearing a lot when we present the OpenStack to a new client, mostly from the guys who control the Networking infrastructure.
November 2015
Open Virtual Switch (OVS) Deep Dive: How L2 Agent "wires" a new VM
The basics of the OVS (Open Virtual Switch) and OpenStack Neutron module were described in my previous post.
OpenStack Neutron and OVS (Open Virtual Switch) translated to the Network Engineers language
Practical notes on openstack neutron and ovs (open virtual switch) translated to the network engineers language — OpenStack, VMware configuration, design, and troubleshooting guidance.
October 2015
[Integrate NSX with PaloAlto] Solve OVF Import Certificate problem using the OVFTool
In my next post I'll be focusing on the NSX and Palo Alto integration, and all the improvements this brings to the Micro Segmentation.
VMware NSX Home Lab
To prepare for the VCIX-NV Exam, the ideal environment to practice is similar to the one we may find on the Hands-on-Labs:
February 2015
OpenStack and NSX integration
OpenStack is basically an open source CLOUD stack, and it delivers the possibility to consume the platform resources using the REST API calls.
January 2015
NSX Components - The Basics
TIP: If you are a Networking professional, the odds are you don’t know much about Web services, and RESTful API everyone is mentioning all the time is your confusion point.
Python Programming for Cisco Nexus (NX-OS) Series
Before I get into the Python for NX-OS, let me explain a few concepts that I've seen Network Engineers have been struggling with.
December 2014
How VXLANs Work
Practical notes on how vxlans work — Networking, VMware configuration, design, and troubleshooting guidance.
VMware NSX Fundamentals
In July 2012 VMware acquired Nicira (Nicira was founded by Martin Casado of Stanford University and it had a product called NVP - Network Virtualization Platform), and that’s basically how VMware started the NSX...
November 2014
How vSphere sees VLANs
\-Virtual Switch (vSwitch): Manages virtual machine and networking at the host level. There is NEVER a direct connection between two vSwitches, and the Spanning Tree is OFF.
vSphere Networking for CCIEs
Before you even consider getting into the NSX, be sure you understand deeply the vSphere, vCenter and ESXi concepts, including the vSphere Networking (vSwitch and vDS).
July 2014
OpenStack and OpenDaylight for Network Professionals
Disclaimer: I wanted to name the post "OpenStack for dummies", but I took a wild guess that CCIEs don't really like to be called dummies, so I "tuned" the title a little bit.
Are Cisco Nexus 1000v, CSR 1000v and Vyatta the same thing?
Long version: No, they are not. Nexus 1000v is used for L2 interconnection of the VMs.
CCIE vs SDN
Most of you who've been following my blog in the past, or even most of you who've stumbled upon it by randomly looking for "some Cisco stuff "on Google, are aware that this blog was originally designed as my personal...