802.1X multi-domain authentication

802.1X multi-domain authentication is an extension of 802.1X authentication for multiple supplicants, which authenticates multiple clients individually on one authenticator port. Multi-domain authentication allows one VoIP client and multiple data clients to authenticate to different VLANs while on the same port. The VoIP client is authenticated to the voice VLAN while the data clients are authenticated to the data VLAN.