With SDN, your networks are application aware, optimizing performance across the entire DC network and campus LAN. Now that's teamwork.

Yesterday's networks have very little awareness of the applications that are generating traffic, and conversely, new virtual application control systems are unaware of the conditions prevailing within the network. When the network and applications operate in silos, any attempt by the network or the application controllers to improve resource utilization usually leads to results that 'could do better'.

So how can you turn a B grade into an A grade? The answer's easy: SDN.

A strategy for improving performance, management and security

What is Software Defined Networking? It's is the term used to refer to the many approaches proposed by standards bodies and network vendor communities to solve this problem.

SDN aims to provide a coordinated virtual infrastructure where applications and the network can collaborate for a high quality user experience and optimized resource consumption.

SDN doesn’t have to mean that we forget everything we have, but rather use it in a better, more efficient manner than ever before.

David Hardaker, Strategic Sales DC Architect

ALE Blog

The principles of SDN:

  • Programmability: Links can be made between the application control and network control layers to optimize application performance and increase visibility
  • Application Awareness: The network can automatically react to the dynamic requirements of virtualized workloads, for example moving resources in the data center to unleash the workload optimization capabilities now available for computing
  • Global Control View: Network control systems have a global view of current network conditions to improve local decisions made by individual network nodes on how to treat traffic streams of a particular application

The benefits of SDN
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  • For employees
    • High quality user experience with multi-media real-time applications and cloud services
    • Increased support for mobile and remote working
    • Higher productivity and engagement between employees and with customers
  • For IT managers
    • Better network performance with an application-aware network that coordinates with virtual application control
    • Better user experience with improved quality of service controls
  • For CIOs and CFOs
    • Better security with an application aware network
    • Reduced CAPEX and OPEX costs with increased coordination between application control and network control platforms

SDN In The Real World: Use Cases For Analytics, Security

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