95
To do… Use the command… Remarks
Enable the quiet timer dot1x quiet-period
Required
Disabled by default.
Set the quiet timer
dot1x timer quiet-period
quiet-period-value
Optional
The default is 60 seconds.
Enabling the periodic online user re-authentication function
Periodic online user re-authentication tracks the connection status of online users and updates the
authorization attributes assigned by the server, such as the ACL, VLAN, and user profile-based QoS. The
re-authentication interval is user configurable.
Follow these steps to enable the periodic online user re-authentication function:
To do… Use the command… Remarks
Enter system view system-view —
Set the periodic re-authentication
timer
dot1x timer reauth-period
reauth-period-value
Optional
The default is 3600 seconds.
Enter Ethernet interface view
interface interface-type
interface-number
—
Enable periodic online user
re-authentication
dot1x re-authenticate
Required
Disabled by default
The periodic online user re-authentication timer can also be set by the authentication server in the
session-timeout attribute. The server-assigned timer overrides the timer setting on the access device, and
enables periodic online user re-authentication, even if the function is not configured. Support for the
server assignment of re-authentication timer and the re-authentication timer configuration on the server
vary with servers.
NOTE:
The VLAN assignment status must be consistent before and after re-authentication. If the authentication
server has assigned a VLAN before re-authentication, it must also assign a VLAN at re-authentication. If
the authentication server has assigned no VLAN before re-authentication, it must not assign one at
re-authentication. Violation of either rule can cause the user to be logged off. The VLANs assi
ned to an
online user before and after re-authentication can be the same or different.
Configuring an 802.1X guest VLAN
Configuration guidelines
Follow these guidelines when you configure an 802.1X guest VLAN:
• You can configure only one 802.1X guest VLAN on a port. The 802.1X guest VLANs on different
ports can be different.
• Assign different IDs for the voice VLAN, the default VLAN, and the 802.1X guest VLAN on a port,
so the port can correctly process incoming VLAN tagged traffic.