Fariborz, Are you using the virtio-net para-virtualized drivers? The virtio-net driver makes the OS aware that the drive is not physical and won't limit you to a connection speed.
-Si ________________________________ From: Fariborz Navidan <mdvlinqu...@gmail.com> Sent: Wednesday, April 3, 2019 8:15 AM To: users@cloudstack.apache.org Subject: VM's network adapter speed Hello folks, When I was on VMware, a windows VM was showing network connectivity speed on its network adapter as 10Gbps Full Duplex. But on KVM, it shows as 1Gbps Full Duplex. It means on ESXi I could get 10Gbps inter-VM network speed but on KVM I get 1Gbps inter-VM network speed. Is there any setting anywhere that I can get 10Gbps inter-VM network? Best Regards