A business has several remote sites that are backed up to the central Veeam infrastructure.

WAN accelerators are a feature in Veeam Backup & Replication that optimize data transfer over WAN connections. By deploying WAN accelerators at both the central VBR (Veeam Backup & Replication) server location and the remote sites, data transfer can be optimized to fit into the existing backup window without the need for additional bandwidth investment. WAN accelerators work by caching repetitive patterns of data, which significantly reduces the amount of data that needs to be transferred over the network after the initial job run. This makes it a cost-effective solution for improving backup duration when bandwidth is limited.