This is the supplicant-role, device-wide counterpart to cienaCes8021xAuthStatsClear, resetting all of this switch's own 802.1x supplicant statistics globally in one write rather than per port. An admin would use this less often than the authenticator equivalent, since a given switch typically has far fewer supplicant-role uplink ports than authenticator-role access ports, but it's useful after a broad fix affecting the device's own upstream authentication behavior. For example, after updating cienaCes8021xSuppMinimumTlsVersion device-wide to resolve a cluster of failed upstream authentications, an admin would clear these global stats to get a clean read on whether the fix actually eliminated the failures going forward.