All PowerSwitch management ports and PowerFlex node iDRACs are connected to the OOB management switch in each rack.
Each PFMC node has two connections to the OOB management network: the 1 GbE iDRAC and an additional 10 GbE NIC, as shown in the figure below. PowerFlex Manager uses the PFMC node's 10 GbE to communicate with the iDRACs on the PowerFlex compute and storage nodes. The PowerFlex compute and storage nodes only require the iDRAC connection to the OOB network.