Traditional WAN Challenges
IT is Evolving. So Should Your WAN. Here’s Why
Business has changed in the past ten years. The Cloud. Mobility. A global marketplace for even mid-size companies. Here’s what that means for your wide area network (WAN):
Before the cloud, applications used to communicate with servers in the data center, a reality reflected in WAN engineering. MPLS-based networks typically use a hub-and- spoke design where offices send all of their traffic to data center. Even though Internet traffic may be destined for a site near an office, all Internet traffic is backhauled to the data center for security reasons, often adding latency and degrading Internet performance.
Voice, video, CRM and more – WANs accommodate many types of applications each with unique requirements. Some require significant bandwidth; others require low latency. Routing protocols do not provide for those differences, forcing IT to overprovision bandwidth.
Many factors, most notably video adoption, are driving users to consume far more bandwidth. With more bandwidth, comes an even greater sensitivity to the amount being spent on bandwidth each month.
Many WAN monitoring tools, fail to differentiate between business-critical Internet applications and general Internet browsing. With so many applications and many different kinds of users, insight into the WAN is more critical than ever.
The WANs of old presumed on-site personnel to configure and adapt the network. The on-demand business of today is lean and mean with little tolerance for complex configuration and installation. Do you want to fly an engineer out to set up a new office? Probably not.