There were a lot of technical sessions on VMworld about VMware NSX. 30 sessions were about or touched on NSX and interest (the queue for the waiting list) were enormous, a lot of people wanting to know more.

As a network guy, my VMworld was mostly about NSX as well. I joined 7 sessions to get more acquainted and learn about best practices in designing virtual network environments. This post will summarise these best practices. As soon as the VMworld presentations will come online, I will update this post with the actual network diagrams.

 

Cluster Design (types)
VMware NSX … Read more


Cisco has made it clear that there will be no validated design for a FlexPod with VMware NSX running as the virtual network and there will be no trifecta vendor support for the entire platform. This does not mean you’re completely barred from using it though. To be able to make use of the best of both worlds, I’ve been working to create a design that uses FlexPod as the rock solid foundation and offer the networking flexibility that VMware NSX offers. The goal is to not change the FlexPod design so that it will still be certified for support.… Read more


VMware NSX integrates networking into the virtual world. It also brings networking services to the in a distributed and much simpler fashion. One of those network services is load balancing. Using NSX, you can create virtual IP addresses which routes incoming network traffic to multiple real servers.

It works just like your regular hardware load balancer (F5, A10 Networks, etc), but in a distributed way and grouped by real servers on your computing hardware.

Making these network services virtual, means being able to deploy it very rapidly and easy. So easy, you can create a web load balancing cluster in … Read more


VMware has released a design guide for a network with NSX, Cisco Nexus 7000 and Cisco UCS computing. Perhaps it’s a small glueing attempt from VMware to Cisco, maybe it’s nothing. The thing is, I’m really happy about this design guide, there’ll be a FlexPod for NSX yet! ­čśë

Read it here: http://www.vmware.com/files/pdf/products/nsx/vmware-nsx-on-cisco-n7kucs-design-guide.pdf

The document outlines a few important tips:

  • Use separate links for the routing between NSX and the Nexus switches. As you don’t want to route over vPC.┬á
  • Use DVS network shares to prioritise your traffic.
  • Make sure your MTU values are set properly.

It’s a very good … Read more


One of the good guys, Hany Michael over at hypervizor.com, has made a few videos showing the installation ease of VMware NSX. Unfortunately us normal peasant people do not have access to NSX yet, but you can see how the installation goes. Check these out:

 

Deploying the NSX vAppliance

Deploying the NSX Controllers

Preparing ESXi hosts

Configuring a Logical vSwitch

 

Other interesting videos about NSX can be found here: http://www.youtube.com/playlist?list=PLZe_p0Q19xy21onTkNm5pqGtjH9UnTiXuRead more


This article is number two of a series about the upcoming network virtualization spree, specifically the one coming from VMware. Check out the other articles.

Traditional network services have evolved over the last years. Introducing more advanced firewalling, loadbalancing and remote access services. Typically, datacenter networks architecture these days look somewhat look this:


VMware - Traditional Services

The routers can be virtualized inside a physical box, using either VRFs or vendor proprietary router virtual routers, such as Cisco VDC. However, the external and internal firewalls are usually separate monolithic hardware firewalls, which puts a large dent into the network budget.

As we move … Read more


This article is number one of a series about the upcoming network virtualization spree, specifically the one coming from VMware.

I spent 14 to 17 October at VMworld 2013 in Barcelona, basically getting my mind blown by the futuristic possibilities of network flexibility. Things are changing for the network, flattening the entire stack, distributing network services throughout the virtual network (instead of the monolithic central hardware), lowering network costs and making it more flexible and simple to manage.

In this post, I will go over the basics of the components that are used to form the VMware NSX virtual network.… Read more