Tag Archives: Software

Software
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NSX Multi-Hypervisor 4.2.0 is now GA

This is a pretty special release adding some impressive features…
·         Controller hitless failover
·         Controller hitless upgrade
·         TCP flag-based security profiles
·         DHCP relay
·         OVS performance improvements
Enjoy!
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101
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I Can’t Download NSX?

VMware administrators for years have had access to download VMware technologies for evaluation. NSX is a little different and you will not find NSX on the download page. The reason for this is simple – The VMware Networking and Security Business Unit (NSBU) wants you to have a positive experience evaluating NSX technologies. As such, when you are ready to perform an evaluation, NSX systems engineers will assist you with access to the software and review the installation process with you. Actual installation is pretty straight forward so when you are ready, reach out to your favorite technology partner or core VMware sales team and they will put you in touch with the VMware NSBU. You can also use the link on the VMware website… http://www.vmware.com/company/contact_sales.html

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Introduction
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Network Virtualization in a Nutshell…

Software Defined Networking and network virtualization in general relies on a centralized network controller to provide an API interface that can be accessed programmatically. The centralized network controller  translates API calls into instructions to hypervisors, switches, virtual appliances, and physical hardware appliances, creating logical network constructs. The network controller also has the job of tracking and maintaining network connectivity and security across the virtual and physical environment.

VMware NSX works with OpenStack Neutron in multi hypervisor environments (vSphere. XEN, KVM) using the Open Virtual Switch, and vSphere vCenter using the vSphere Distributed Switch.

The scope of NSX today is within the four walls of a data center or metro data center under control of  OpenStack or vCenter. In the NSX vSphere Edition, there is some nice integration with SRM, where SRM can be used to replicate logical network constructs to a remote vCenter/NSX.

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Introduction
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The Goldilocks Zone…

An awesome introduction to the “Goldilocks Zone” by Martin Casado – The relationship between the hypervisor and virtual workloads and the ability to provide enhanced security.

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