Abstract: Configuring a virtualized environment in a telecommunications network is described. A plurality of primary virtual workloads are configured, including a first primary virtual workload, to use first processing resources on at least one host device in the network. A plurality of secondary virtual workloads are configured, including a first secondary virtual workload and a second secondary virtual workload, to use second processing resources on at least one host device in the network, each of the plurality of secondary virtual workloads being associated with a respective one of the primary virtual workloads. The secondary virtual workloads contend with one another. Causing, as part of a failover procedure, a processing resource access priority such that additional processing resources on at least one host device in the network are available to the first secondary virtual workload and not available to the second secondary virtual workload.