Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 1062)

802.1X Introduction and Configuration
Software Reference for x310 Series Switches
40.4 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
Basic steps in an 802.1X conversation
Step Action
1 The supplicant informs the authenticator that it wants to
initiate the conversation.
2 The authenticator requests the supplicant's credentials.
3 The supplicant sends username/password or X.509 certificate.
4 The authenticator wraps the supplicant's reply into a RADIUS
packet and sends it to the RADIUS server.
5 The RADIUS server chooses an authentication method, and
sends an appropriate request to the supplicant as a ‘challenge’.
6 The RADIUS server and supplicant exchange some messages,
ferried by the authenticator.
7 The RADIUS server eventually decides if the supplicant is
allowed access and the RADIUS server sends an Access-Accept
or Access-Reject message to the Authenticator.
8 The authenticator sends an EAPoL-Success or EAPoL-Fail to the
supplicant.
9 The supplicant has a session using the network (if accepted).
10 When the session is over, the supplicant sends a log-off
message.