Today, I am pleased to announce that we will be showcasing the Cisco Intelligent WAN (IWAN) Application for the APIC-EM controller with early adopter customers at Cisco Live San Diego next week. For those of you familiar with Cisco’s SDN solutions, the APIC-EM builds on Cisco’s ACI architecture to extend Software Defined Networking from the Data Center to the WAN and Access areas of your network.
Before diving into the IWAN App, you might be wondering what is “Software Defined Networking for the WAN” or “SD-WAN” is. The simple answer is that the same benefits that SDN brings to the Data Center can be applied to the Wide Area Network. SDN for the WAN is all about moving from feature by feature configuration to policy and intent driven management. Benefits achieved include reduced costs to operate the WAN and optimize bandwidth. It’s about improving your application experience, enabling digital experiences in your remote branches, and enabling you to move to cloud based applications without giving up on application performance. Finally, it’s about WAN resiliency. Crucially, you must achieve all of this while maintaining end-to-end security and this requires enhancing security capabilities.
Sounds like a lot? It is, and that’s why we (and most of the industry) are so excited about the changes happening in the WAN. To boil it down, as I talk to customers about evolving their WAN architecture to meet the growing bandwidth and performance demands generated by mobile devices, digital stores, cloud based applications, and IoT sensors – to name a few – customers are focused on a short list of business outcomes:
- Greater business agility with faster application delivery
- Reducing costs with simplified operations and management
- Improving business continuity with high availability and resiliency
If these business outcomes sound familiar it is because we are addressing them today with our Intelligent WAN Solution (IWAN) and have been talking about them for the past few years. What’s unique about Cisco is that we have built IWAN to be integrated with our industry leading ISR and ASR 1000 routers while many others have chosen to go with a pure overlay. By combining the strengths of IOS XE software with rock solid hardware to provide detailed visibility across all layers of the network, the Cisco IWAN solution has a much more intimate understanding of network conditions and can make better and faster decisions about how to direct traffic over the WAN. IWAN also retains all of the inherent resiliency, security, and self-healing aspects that routing protocols were developed to provide. Combine this with Cisco’s industry-leading security portfolio as well as our end-to-end vision for policy based infrastructure (ACI) and we have a solution is pretty hard to beat. Continue reading “Bringing Software-Defined Networking to the WAN”




