We are checking which swtiches should be compatible with our network deployment and RADIUS using 802.1x. Our understanding is that it should work like this: 1. Supplicant Client sends any authentication information using EAP-TTLS tunnel to RADIUS server, which will include certificate. So for example, it sends MAC ID and certificate to RADIUS server (through the 802.1x enabled authenticator switch). 2. The RADIUS server will then tell the switch which certificates are authenticated (and not the MAC ID or other information). Does this sound correct? Or, in order to pass MAC "and" certificate, it will not be compliant with 802.1x since 802.1x only uses x.509 certificate and therefore we would need a switch with 802.1x "bypass mode"?