Snapmirror with Steelhead WAN Optimizer

Hi, everyone.

In my evironment, i currently have FAS2552 runnning snapmirror over WAN. However,  the transfer time is extremely long, so i think that would like to utilize Riverbed Steelhead to compress snapmirror data.

The version of NetApp and Steelhead are as follows,are they supported?

Has anyone running Steelhead with clustered Data ONTAP?
 

■Steealhead
RiOS: 9.2.1d
 
■FAS2552
clustered Data ONTAP: 8.3.1

Thanks,
Tee