Data Replication Over WAN (using existing TCP/IP )

[akshaym]

Hi,
As part to reduce the cost we are thinking to move the remote replication of data form existing (DWDM and Dark fibre ) to WAN (MPLS ).I know this is possible .,I want to know what all are options available e.g FCIP ,FCOE etc ..what setup will be required to do this ...I also know that we cannot we get RPO as good as Dark Fibre replication ,but are there nay ways to have near zero RPO figure ..using some hardware or software ?

Thanks in advance...