Owner's Manual

802.1x Commands 489
User Guidelines
It is recommended to disable the spanning tree or to enable spanning-tree PortFast mode on
802.1x edge ports (ports in
auto state that are connected to end stations), in order to go
immediately to the forwarding state after successful authentication.
Examples
The following example enables 802.1x authentication on the interface:
dot1x re-authentication
The dot1x re-authentication interface configuration command enables periodic re-authentication
of the client. To return to the default setting, use the
no form of this command.
Syntax
dot1x re-authentication
no dot1x re-authentication
Default Configuration
Periodic re-authentication is disabled.
Command Mode
Interface Configuration (Ethernet) mode
User Guidelines
There are no user guidelines for this command.
Examples
The following example enables periodic re-authentication of the client:
dot1x timeout re-authperiod
The dot1x timeout re-authperiod interface configuration command sets the number of seconds
between re-authentication attempts. To return to the default setting, use the
no form of this
command.
Console(config)# interface ethernet g16
Console(config-if)# dot1x port-control auto
Console(config)# interface ethernet g16
Console(config-if)# dot1x re-authentication