Allied Telesis AT-S63 - Manual (Page 725)

AT-S63 Management Software Menus Interface User’s Guide
Section VII: Port Security 725
Note, however, that should the client who accomplished the initial log on
fail to periodically reauthenticate or log out, the switch port reverts to the
unauthenticated state. It bars all further traffic to and from all the clients on
the port, until the initial client or another client logs on by providing a valid
username and password combination.
Here are a couple examples that illustrated the Single operating mode and
the piggy-back mode of an authenticator port. In Figure 250, an
authenticator port on a switch, in this case port 6, is connected to a single
802.1x-compliant client. The authenticator port’s operating mode is set to
Single and the piggy-back feature is disabled so that only one client can
use the port at any one time.
Figure 250. Authenticator Port in Single Operating Mode with a Single
Client
The example in Figure 251 illustrates a configuration where there are
multiple clients connected to an authenticator port on the switch through
an Ethernet hub or a non-802.1x-compliant Ethernet switch, such as an
unmanaged switch. The operating mode of the authenticator port on the
AT-9400 Series switch is set to Single and the piggy-back mode is
enabled so that the port allows all clients to foward packets through it after
one client logs on.
AT-9400 Series Switch
FAULT
RPS MASTER
POWER
CLASS 1 LASER PRODUCT STATUS TERMINAL PORT
1 3 5 7 9 11
2 4 6 8 10 12
13 15 17 19 21 23R
14 16 18 20 22 24R
AT-9424T/SP Gigabit Ethernet Switch
1 3 5 7 9 11 13 15 17 19 21 23R
2 4 6 8 10 12 14 16 18 20 22 24R
23 24
L/A D/C
D/C
L/A
D/C L/A 1000 LINK / ACT HDX / COL FDX 10/100 LINK / ACT PORT ACTIVITY
L/A 1000 LINK / ACT SFP SFP
24
SFP
23
RADIUS
Authentication
Server
802.1x Client Software
Port 6
Role: Authenticator
Operating Mode: Single
Piggy-back Mode: Disabled