Enterprises are deploying SD-WANs as the key technology to improve the visibility and control of their wide area networks.
Challenge 1: Visibility
For too long WAN management has been stuck at the routing layer of the network; providing the service management and enterprise customers a wealth of semi-precious reporting data of the bits and bytes in and out of a location. Semi-precious because it provided network data on the amount of bandwidth used at a location but held little business value as there was no visibility into the application usage by user at the branch.
This made troubleshooting application performance next to impossible with most complaints starting from the viewpoint of “The network is slow today”, and the network team having to base their diagnostics based on the premise of guilty until proven innocent.
Change 2: Control
One of the biggest challenges for the Enterprise with their traditional managed VPN service was the inability to make swift changes to their network service to match any immediate changes to their business environments.
Generally, any change to the WAN required a formal interaction with their Service Provider, and that request needing to go through a formal change control process, with multiple interactions across multiple provider and customer teams to schedule and implement the change.
This meant that the network team in the Enterprise would be constantly on the back foot reacting to the change and having to factor in the time and effort that any change to the WAN would require before the new business initiative could be operationalized.