Managing networks with OpenFlow

Summary

OpenFlow fixes many of the problems that networks have been lugging around since the first technical implementation of Ethernet. Thanks to OpenFlow, admins no longer consider their networks as a collection of various standalone devices that operate locally and each forward packets according to their own rules, but as a great whole, with the network devices acting as remotely controlled locks. This change in paradigm opens a door to new ideas. As probably the most common manifestation of SDN that is also used in commercial products, OpenFlow brings a breath of fresh air to the field of virtualization, adding flexibility to networks and fertile ground for many applications.

As so often happens, however, all that glitters is not gold. It still isn't clear whether OpenFlow is ready to serve as a replacement for conventional network infrastructure in large-scale, enterprise production environments.

One problem is that the rapid evolution of the OpenFlow specification means that hardware does not always support the full range of OpenFlow actions [7].

The Author

Marc Körner works as a research assistant at the CIT, Technical University of Berlin. He has been working with OpenFlow for more than three years and is currently finishing his thesis, which focuses on the integration of OpenFlow applications in data centers.

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

SINGLE ISSUES
 
SUBSCRIPTIONS
 
TABLET & SMARTPHONE APPS
Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Mininet

    Mininet lets you test new controller features for your software-defined network in a sandbox before releasing them onto your production network.

  • SDN Up Close

    Globalization, rapidly increasing numbers of devices, virtualization, the cloud, and "bring your own device" make classically organized IP networks difficult to plan and manage. Instead of quarreling, some admins address these problems with a radically new approach: Software-defined networking.

  • OpenDaylight

    Several well-known companies are collaborating on the foundations of future SDN products under the umbrella of the OpenDaylight open source project.

  • Software-Defined Networks

    Even as the tech world works to figure out just what to do with the potential of cloud computing and big data, along comes a new bit of technology fueled by open source software: software-defined networks.

  • Open Networking Foundation Formed

    “Stronger definition of network behavior in software is a growing trend, and open interfaces are going to lead to faster innovation,” said Nick McKeown, ONF Board member and professor at Stanford University.

comments powered by Disqus

Direct Download

Read full article as PDF:

Price $2.95

News