Abstract: An apparatus comprises a plurality of host devices each implementing one or more virtual resources that are migratable between the host devices, one or more networks comprising a plurality of network switches each coupled to one or more of the host devices, and a migration controller associated with one or more of the host devices. The migration controller is configured to monitor utilization of the network switches by their associated host devices and to direct migration of the virtual resources between the host devices based at least in part on the monitored utilization of the network switches. Responsive to detection of a first network switch having a utilization above a threshold, the migration controller identifies a second network switch having a utilization below the threshold and directs migration of at least one virtual resource from a first host devices associated with the first network switch to a second host device associated with the second network switch.