Enterprise networks today are complex entities, posing numerous challenges for teams in charge of managing network policy. A typical network has a wide range of Layer 4-7 functionality, and managing those services usually involves a laborious process that hampers network responsiveness. A new video from NEC shows how businesses are using SDN to optimize network policy and security, giving their networks the agility and security they need.
Traditional approaches to Layer 4-7 applications are similar to those used with servers: Acquire the requisite network appliances, cable them in correct order, manually configure them, size for future peak load, and continually resize them. The approach is time consuming, expensive, and error prone. The NEC video, “Optimizing Network Policy and Security Using SDN” shows how SDN can eliminate many of these steps, bringing agility to both enterprise and providers.
The video features Jim Metzler, vice president and research fellow at Ashton, Metzler and Associates, and Don Clark, NEC director of strategy and business development, as they cover how networks can apply SDN to service insertion and service chaining to tackle Layer 4-7 provisioning challenges.
In a typical network architecture, all traffic flows through all devices, managed by a single core set of network services. This setup is prone to congestion and choke points, and comingled policy hinders the ability to scale individual devices. Business and IT changes make provisioning even more challenging as newer requirements like VM guest migration complicate policy implementation, and growing campus networks span multiple locations and data centers.
The video describes how SDN-enabled, flow-based virtualization can create virtual networks mapped to physical devices in the infrastructure — simplifying policy fulfillment because administrators now can apply policies only where they’re needed. A demo in the video shows how quickly an administrator can add a load balancer service by reconfiguring the logical network while maintaining the same physical infrastructure.
Check out the video below to learn more about how SDN can help networks become as agile at Layer 4-7 as they can at the server level. The video can also be seen on SDxCentral’s NEC Channel, a curated space to help educate networking professionals about NEC’s SDN and NFV activities.
Check out the SDxCentral NEC Channel to watch this video or learn more about NEC’s latest developments on the SDN front.