We just purchased and installed a new R820 that has four 10Gbps adapters and two 1Gbps adapters. We have a three host cluster and an Equallogic iSCSI SAN. We have configured three vSwitches, one for management (two 1Gbps adapters), one for iSCSI / vMotion, and one for VM traffic. We added this new R820 in as the fourth host and configured it identically as the other three including on the physical switch side. When we move VM's to it the vMotion takes way longer than normal and network connectivity with the VM is disrupted. Once the migration is complete the VM is pingable but we are getting 1 to 2 ms ping times instead of less than 1 ms which is the behavior on all the other hosts. We have stared at the configuration for a couple of days now and cannot see any difference in configuration with the first three hosts. We have checked power management settings in the BIOS. We have quadruple checked the physical switch side of things. We have tried assigned one adapter to each vSwitch and then switching which physical adapter is assigned to see if it was a particular adapter. Running out of ideas.
