Have you looked here - https://www.juniper.net/documentation/en_US/junos/topics/example/802-1x-pnac-single-supplicant-multiple-supplicant-configuring.html
For this configuration multiple-supplicant-mode would be a requirement.
Have you looked here - https://www.juniper.net/documentation/en_US/junos/topics/example/802-1x-pnac-single-supplicant-multiple-supplicant-configuring.html
For this configuration multiple-supplicant-mode would be a requirement.