Replication Data Paths

In this article

    VM replication can work over two data paths:

    Note

    Replication over WAN accelerators is supported only for snapshot replicas.

    Direct Data Path

    Replication over a direct data path is recommended if you replicate VMs over the LAN or fast connections. In this case, Veeam Backup & Replication transports data directly from the source host or off-host backup proxy to the target host.

    Replication over WAN Accelerators

    If you have a weak WAN link, you can replicate VM data over a pair of WAN accelerators. WAN accelerators provide advanced technologies to optimize VM data transfer:

    WAN accelerators add a new layer in the backup infrastructure — a layer between the source Veeam Data Mover and target Veeam Data Mover. The data flow goes from the source host or off-host backup proxy over a pair of WAN accelerators to the target host.

    To replicate VMs over WAN accelerators, you must deploy a WAN accelerator at each end of the WAN link: