iSCSI failover time with MPxIO

Hi,

What kind of failover times should we expect to see when using a Solaris 11 host with iSCSi against a Cluster? During a test we had two active online paths and did a quick test to filter out all traffic to and from one ONTAP node at a time, we then had writes stall for over a minute before the other online path was used. Is it expected for MPxIO to handle the failure on Solaris or should the Initiator failover before that when we have more than one session?

Thanks