This is some further information from ATTO on the best settings to use for the Ethernet LTO.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E97B-E325-11CE-BFC1-08002BE10318}\Microsoft iSCSI Initiator\Parameters]
"MaxTransferLength"=dword:00100000
"MaxBurstLength"=dword:00400000
"FirstBurstLength"=dword:00100000
"MaxRecvDataSegmentLength"=dword:00400000
"InitialR2T"=dword:00000000
"ImmediateData"=dword:00000001
Also change the MTU Size to 9014
Using Device Manager check these values on the NIC associated with the DP connection to the Ethernet Bridge:
Set the RX and TX Buffer Size to the max.
Check entries:
Reg Query "HKLM\SYSTEM\CurrentControlSet\Control\Class\{4d36e97b-e325-11ce-bfc1-08002be10318}"