In an Aruba network, when setting up a WPA3-Enterprise network that also supports WPA2-Enterprise clients, you would typically configure the network to operate in a transitional mode that supports both protocols. CNSA (Commercial National Security Algorithm) mode is intended for networks that require higher security standards as specified by the US National Security Agency (NSA). However, for compatibility with WPA2 clients, which do not support CNSA requirements, you would disable CNSA mode. WPA3 can use 256-bit encryption keys, which offer a higher level of security than the 128-bit keys used in WPA2.