Wan-as-a-service Enables Networks To Respond To Evolving It Needs
Enterprises have long relied on multiprotocol label switching (MPLS) services or IPSec VPNs over broadband Internet to build wide area networks (WANs). Both of these methods have always had their challenges. MPLS is a reliable way to establish a virtual private network (VPN) across private data centers, offices, retail stores, and other locations, but it is expensive to establish. IPSec VPNs over broadband are cheaper, but are inherently unreliable.