Interop
Commentary
11/21/2013
00:00 AM
Natalie Timms
Natalie Timms
Commentary
Connect Directly
RSS
E-Mail
50%
50%

Securing The Software-Defined Network

SDNs offer the ability to centralize and automate network security functions, but only if security requirements are implemented correctly from the ground up. Learn how to secure the many components of the SDN.

With the emergence of software-defined networks (SDNs), security must become a core component of the network. Network security can no longer be an afterthought, or added with the assumption that it will "just work" on top of an existing network. With SDN, security services are pre-planned and become the foundation for connectivity. The benefits are centralized policy management, automated provisioning, and real-time mitigation. Sounds good, right?

The problem is the security perks you get from SDN are only as good as what you build into the system from the start. If any element or interaction in the SDN model can be compromised, the integrity of the whole network can be affected.

Integrating Security And SDN

Regardless of the architectural model or the controller-agent communication protocol you choose, SDNs provide perimeter security to an organization. Yes, networks still have a perimeter in terms of today's threat landscape. The perimeter, however, is no longer a single boundary or device dividing outside from inside.

The whole concept of the Internet of everything, where any IP-based device connected to a network may pose a threat, requires each network element or function within an organization be secured in its own right. SDNs address this issue, because agents and controllers can be provisioned to provide perimeters to individual devices or services.

Read the rest of this article at Network Computing.

Comment  | 
Print  | 
More Insights
IT's Reputation: What the Data Says
IT's Reputation: What the Data Says
InformationWeek's IT Perception Survey seeks to quantify how IT thinks it's doing versus how the business really views IT's performance in delivering services - and, more important, powering innovation. Our results suggest IT leaders should worry less about whether they're getting enough resources and more about the relationships they have with business unit peers.
Register for InformationWeek Newsletters
White Papers
Current Issue
InformationWeek Tech Digest September 24, 2014
Start improving branch office support by tapping public and private cloud resources to boost performance, increase worker productivity, and cut costs.
Video
Slideshows
Twitter Feed
InformationWeek Radio
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.