Hello I'm running two windows 2012 server on a Suse xen hypervisor. I've tested network performance with IPERF I've got 0.0-10.1 sec 56.8 MBytes 47.3 Mbits/sec without GPL PLV drivers and 0.0-10.0 sec 3.20 GBytes 2.74 Gbits/sec with GPL PLV drivers I've noticed a strange thing GPL PLV drivers. When they are installed, task manager of windows show a correct number for send packets but received packets always stay at 0. Is there an explanation for this ? Second problem is that I have a backup agent on the windows server who talk to the master backup which is on the suse server. Every time i run the backup, after a while, the connection is lost with "Client session terminated (repair failed) with socket error (Erreur 51: Échec du socket)" Is anyone has the same problem ? Thanks -- Emmanuel RIZZI ERILOG 103 rue Beaupoil 39210 DOMBLANS Tel: 03 84 44 66 66 Fax: 03 84 44 62 00