WAN optimization products still key for DR and cloud access.

The article discusses the significance of wide-area network (WAN) optimization products to disaster recovery and cloud access. Topics discussed include challenges provided by reading and writing data across WANs that do not exist when accessing data between systems in the same data center, integration of WAN optimization into the routers of networking vendors, and data center-to-data center replication as one of the main use cases of WAN optimization controllers.