NSX

NSX-T v2.4 Manager Failures #RunNSX #VMware #Networking #SDDC @UltTransformer

July 12, 2019 Bilal Ahmed 0

Introduction So, I have started getting into the world of NSX-T, I pretty much missed the NSX-V train and while it is still early days in the T world, I wanted to get on board. This led me to attending the NSX-T v2.4 ICM and I have to say it has been one of the best courses I have ever attended. Our instructor seriously knew his stuff and the room was full of highly skilled networking and virtualisation guys. I asked lots and lots of questions and we had some very good discussions regarding topologies and packet flows etc. At the end of the 5th day, me and a couple of guys had some time to burn, and we started […]

Flashblog: DCIS-Cube

May 12, 2018 Stijn Depril 0

Over the last couple of months I had been involved in the development of the ‘DCIS-Cube’, the new architecture that will be used as a ‘portable’ and easy deploy-able system by NATO’s Communications and Information Agency (NCI Agency). Portability and the ease of deployment of infrastructure in regions of deployment have always been challenging for the NCI. When they have to deploy a small datacenter to support a mission somewhere on the globe, they have to ship a couple of racks with hardware to that specific place.  Apart from the logistical nightmare of moving a ton of hardware,  they are struggling with the actual deployment of all that hardware as well. As every single mission has different requirements they can’t prepare the solution somewhere […]

Bitdefender – True Agentless protection

June 13, 2017 Kim Bottu 0

Last week I was in London at the InfoSecurity convention having a look what is happening in the security world. If you have never attended InfoSecurity, it is a free event where most of the presentations are a bit loaded on the marketing side.  Of course there are always exceptions. The 2-hour workshops are truly gems. At least the workshops which I did attend to. What if you could protect VM’s without agents or without any other piece of installed software? The workshop which really caught my attention was the workshop presented by Andrei IONESCU and Adrian Liviu ARSENE who are both employed by Bitdefender: ‘Data Center Security – HYPERVISOR INTROSPECTION’. Starting with explaining how external and internal threats are evolving they quickly moved on to explain how their […]

Guido Appenzeller – NSX the network bridge to the Multi-Cloud future

October 18, 2016 Kim Bottu 0

This presentation was actually co-hosted by Guido Appenzeller, the CTO for the NSBU and Scott Lowe who hardly needs any introduction anymore. In this session they elaborated further on how NSX will bridge clouds together and gave live demonstrations on how it all works! Note: I scheduled this session without actually knowing what to expect. Often these kind of sessions tend to be loaded with marketing talk which doesn’t interest me in the least. However this session in reality was a true gem. The guiding principles The guiding principles for a multi cloud network are that software really has to be independent from the hardware, the software had to evolve to a new model and some form of cloud networking is needed of course. Let’s […]

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Journey to VCIX-NV – Part 4 – DLR Control VM SSH Access

August 25, 2016 Shady ElMalatawey 0

So, in this this stage I wanted to test the Distributed Logical Router (DLR) setup. The DLR is one of two types of routers available in NSX Platform and is mainly used in East-West traffic routing to avoid the traffic hair-pinning which can occur in normal centralized routing. For more info, check Roie ben Haim‘s marvelous article about the DLR here. The DLR consists mainly of two components: The Control VM (CVM) which is an Edge Services Gateway (ESG) built specifically to handle routing. Like any normal physical router, this is the SUP module that does all routing stuff (calculating routes and neighboring) and owns the routing tables. tThe CVM isn’t a part of the Data path. The Kernel modules in the ESXi Hosts: This module does […]

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Journey to VCIX-NV – Part 3 – Transport Zones, Clusters and Distributed Switches: Relation and Design Aspects

August 22, 2016 Shady ElMalatawey 0

At this point, I started deploying the basic block of any NSX implementation: Logical Switches. Logical Switches are deployed as a virtual distributed port group on your vSphere Distributed Switch (vDS). Logical Switches are deployed within a logical entity called Transport Zone. This Transport Zone can span one or more clusters and single host can’t be added to the Transport Zone. Couple of thoughts jumped to my mind: what is the limit of a Transport Zone? and How does it represent a logical boundary for your NSX implementation? What is the relation between it and both of added clusters and the vDS(es) in the environment? How do all of that affect my design any NSX implementations? To answer my thoughts together, let’s […]

Journey to VCIX-NV – Part 2 – Deploying and Editing NSX Controllers Settings

July 26, 2016 Shady ElMalatawey 0

The next components to deploy are the NSX Controllers. These are the main components of the NSX Platform Control Plane. NSX Controllers can be deployed as a single instance (not recommended for production) or in a cluster of three nodes. They’re deployed by the NSX Manager itself, with just few clicks in the NSX Manager GUI. For lab environments, you can deploy just a single instance of the NSX Controller and you will be fine. If you want to deploy three of them, you might hit a problem with resource contention, because it requires 4 vCPUs, 4 GB of RAM and 2 GB RAM Reservation by default and you can’t edit the VM Settings. I found a blog post of Tom Fojta about downsizing NSX Controllers (In […]

Journey to VCIX-NV – Intro

July 23, 2016 Shady ElMalatawey 0

This is my series regarding my journey towards VCIX-NV. This series is not about giving you a full hands-on guide for the exam as many have already done this well, but this is only about adding more remarks about the lab issues and other useful resources. For those who don’t know VCIX-NV is a practical-lab certification for VMware NSX. To be able to pass the exam you will need a home-lab or some old servers at work which have been setup with vSphere and NSX so you can get your hands dirty. This is just an introduction I will list my used resources, my home lab configuration and a short description of what my virtual lab is gonna be like. Used Resources: VMware […]