A PowerFlex appliance is based on either an access/aggregation leaf-spine topology. You also have the option to implement your preferred networking as long as the connections to and between PowerFlex nodes meet PowerFlex requirements.
A pair of access switches are required to handle all inter-cabinet network traffic between the nodes.
A standard deployment is one pair of access or leaf switches per cabinet. A management switch is required to support the out-of-band management requirements of the system. Management switches are needed to support network connectivity from the following equipment: