Author
 Greg Ferro
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Profile of Greg Ferro

Network Architect & Blogger
Blog Posts: 48

Greg has nearly 30 years of experience as an IT infrastructure engineer and has been focused on data networking for about 20, including 12 years as Cisco CCIE. He has worked in Asia and Europe as a network engineer and architect for a wide range of large and small firms in many verticals. He has been writing about networking for more than 20 years and in the media since 2001.

You can email Greg or follow him on Twitter as @etherealmind. He also writes the technical blog Etherealmind.com and hosts a weekly podcast on data networking at Packet Pushers.

Articles by Greg Ferro
posted in November 2012

SDN Is Business, OpenFlow Is Technology

11/15/2012
Software-defined networking (SDN) and OpenFlow aren’t the same thing. We’ll clarify the technical differences and discuss a more important distinction: SDN emphasizes applications that drive network usability and business requirements, while OpenFlow is a technology to link an SDN controller and network devices.

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Packets Are the Past, Flows Are the Future

11/14/2012
Networking has focused for years on speeds and feeds: how many packets you can handle and how many ports per device. But hosts and applications work with flows, which will force the network to adapt. Here’s why.

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