HP 2600 Series Function Manual page 196

Configuring Port-Based Access Control (802.1X)
General Setup Procedure for Port-Based Access Control (802.1X)
8-14
7. If you are using Port Security on the switch, configure the switch to allow
only 802.1X access on ports configured for 802.1X operation, and (if
desired) the action to take if an unauthorized device attempts access
through an 802.1X port. See page 8-32.
8. If you want a port on the switch to operate as a supplicant in a connection
with a port operating as an 802.1X authenticator on another device, then
configure the supplicant operation. (Refer to "Configuring Switch Ports
To Operate As Supplicants for 802.1X Connections to Other Switches" on
page 8-34.)