Hi, both ArubaOS-CX operating system running on Aruba CX 6300 or Aruba CX 6400 supports "Enrollment over Secure Transport (EST) which enables secure certificate enrollment, allowing for easier enterprise management of PKI" and, AFAIK (I admit I'm not an expert in this particular field), the EST - RFC 7030 - is a successor of the SCEP.
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CX 10.6 Update - EST: Enrollment Over Secure Transport (October 2020) YouTube video (Aruba Broadcasting channel) related to
this presentation, it refers to ArubaOS-CX 10.06 (LSR) so things should have probably evolved along with newer software releases (ArubaOS-CX 10.07 SSR, 10.08 SSR, 10.09 SSR and 10.10 LSR).