Cisco Catalyst 3550 Command Reference Manual page 101

Multilayer switch

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Cisco IOS Commands

To disable 802.1X globally on the switch, use the no dot1x system-auth-control global configuration

command. To disable 802.1X on a specific interface, use the no dot1x port-control interface

configuration command.

This example shows how to enable 802.1X on Fast Ethernet interface 0/1:

Switch(config)# interface fastethernet0/1

Switch(config-if)# dot1x port-control auto

You can verify your settings by entering the show dot1x [interface interface-id] privileged EXEC

Related Commands

interface-id]

EtherChannel port—Before enabling 802.1X on the port, you must first remove it from the

EtherChannel. If you try to enable 802.1X on an EtherChannel or on an active port in an

EtherChannel, an error message appears, and 802.1X is not enabled. If you enable 802.1X on a

not-yet active port of an EtherChannel, the port does not join the EtherChannel.

Switched Port Analyzer (SPAN) destination port—You can enable 802.1X on a port that is a SPAN

destination port; however, 802.1X is disabled until the port is removed as a SPAN destination. You

can enable 802.1X on a SPAN source port.

Displays 802.1X status for the specified interface.

Catalyst 3550 Multilayer Switch Command Reference

dot1x port-control