August 26, 2013, 1:05 PM — VMware today announced that its virtual networking software and security software products packaged together in an offering named NSX will be available in the fourth quarter of this year.
The company has been running NSX in beta since the spring, but as part of a broader announcement of software-defined data center functions made today at VMworld, the company took the wrapping off of its long-awaited virtual networking software. VMware has based much of the NSX functionality on technology it acquired from Nicira last year.
The generally available version of NSX includes two major new features compared to the beta: technical integration with a variety of partnering companies, including the ability for the virtual networking software to control network and compute infrastructure hardware providers. Secondly, it virtualizes some network functions like firewalling, allowing for better control of virtual networks.
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The idea of virtual networking is similar to that of virtual computing: abstracting the core features of networking from the underlying hardware. Doing so lets organizations more granularly control their networks, including spinning up and down networks, as well as better segmentation of network traffic.
Nicira has been a pioneer in the network virtualization industry and last year VMware spent $1.2 billion to acquire the company. In March, VMware announced plans to integrate VMware technology into its product suite through the NSX software, but today the company announced that NSX's general availability will be in the coming months. NSX will be a software update that is both hypervisor and hardware agnostic, says Martin Casado, chief architect, networking at VMware.
The need for the NSX software is being driven by the migration from a client-server world to a cloud world, he says. In this new architecture, there is just as much traffic, if not more, within the data center (east-west traffic) as than the data traffic between clients and the edge devices (north-south traffic).
One of the biggest advancements in the NSX software that is newly announced is virtual firewalling. Instead of using hardware or virtual firewalls that would sit at the edge of the network to control traffic, instead NSX's firewall is embedded within the software, so it is ubiquitous throughout the deployment. This removes any bottlenecking issues that would be created by using a centralized firewall system, Casado says.