As the security stack becomes more complex at the edge of the network, it’s no wonder that network architects and security professionals are looking for new ways to approach network protection. When data breach volumes started to spike in 2013, it seemed like SDN was going to be the answer.
Software-defined networking didn’t revolutionize network security in 2013, but its potential to improve network defense still stands today and technology is catching up. The following are just a few of the ways that SDN could make a positive impact on network security moving forward:
1.Centralized Data Routing: One of the main draws of SDN is its ability to route all traffic through a single, centralized controller. In terms of network security, SDN can be used to route data packets through a single firewall and make IDS and IPS data capture more efficient.
2.Simplify VLAN Configuration: Companies using VLANs for greater security know that managing configurations isn’t an easy task—especially when you’re managing potentially thousands of them. SDN makes it easier to automate configuration and also improves the traceability of those configurations.
3.Ease Pressure Off of the Perimeter: Today’s network perimeters are under immense pressure to defend internal networks from a wide array of potential threats. With flow-based security processing, SDN offers a more dynamic way to route traffic through security appliances and applications, taking some of the pressure off of perimeter defenses.
4.More Effective Policy Management: Rather than physically configuring security solutions, SDN enables central management of security policies to make network operator roles more efficient.
There are many more potential use cases for SDN in network security, but the bottom line is this—effectively implementing a software-defined network means you can extend your defense capabilities from simply blocking specific attacks to proactively adapting to new threats. With so many potential network security advantages from SDN, it might seem like an obvious choice to make the switch.
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