Managing and Monitoring Performance in SDN / NFV

We have all drunk the Kool-Aid. Software-defined networking (SDN), network functions virtualization (NFV), or both will save the world. They decouple us from the shackles of legacy networks to allow a utopia of business-driven requirements to freely flow, delivering value and freeing the network, application, storage, and infrastructure teams to have weekends off and time …

Different Approaches to the Cloud

Microsoft and VMware have been, in my opinion, two companies in direct competition with each other during their respective journeys to the cloud. VMware started first, paving the way for virtualization in corporate data centers. One could argue that once VMware demonstrated success with virtualization running corporate critical systems, Microsoft decided to go all in developing …

Distributed Cloud?

Distributed cloud service is a growing phenomenon. It fills several roles, distributing data for use by distributed applications, for data protection, and for other reasons. We have been seeing an increase in the number of distributed applications. Non-distributed applications lack the resiliency that is required to work within a cloud, whereas distributed workloads add a …

Beware, All You Other Clouds: Odin Wants His Cloud Back

Who would have thought it? Parallels, the developer of the Mac-based hosted virtualization product, had a service provider business. As of March 24, 2015, Parallels has split it off from its core business of selling hosted virtualization to Mac users and marketed it as “Odin.” Yes, Odin, the Norse god, king of Asgard. At first …

GPUs, Big Data, Security, and the IoT

At the GPU Technology Conference, NVIDIA CEO Jen-Hsun Huang and Tesla CEO Elon Musk talked about the security of a car. Musk stated that physical access is still required to hack most vehicles and that critical systems such as brakes and steering are segregated from the control display. This got me thinking about the security …

SDN: Sadly Defined Network

In virtual and cloud environments, network traffic often flows into a virtualization, then back out, forwarded to another device, usually security, before it re-enters the virtual environment. I call this a “sadly defined network,” not software-defined. Many of my colleagues claim that this is not true. They say that an SDN keeps east-west traffic within …