Cisco Catalyst 4500 Series Command Reference Guide

2-215
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
OL-27596 -01
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
dot1x critical vlan
dot1x critical vlan
To assign a critically authenticated port to a specific VLAN, use the dot1x critical vlan command. To
return to the default setting, use the no form of this command.
dot1x critical vlan vlan-id
no dot1x critical vlan-id
Syntax Description
Defaults Critical authentication is disabled on a ports VLAN.
Command Modes Interface configuration mode
Command History
Usage Guidelines The type of VLAN specified must match the type of the port. If the port is an access port, the VLAN
must be a regular VLAN. If the port is a private-VLAN host port, the VLAN must be the secondary
VLAN of a valid private-VLAN domain. If the port is a routed port, no VLAN may be specified.
This command is not supported on platforms such as Layer 3 switches that do not include the Critical
Auth VLAN subsystem.
Examples This example shows how to enable 802.1x critical authentication on a ports VLAN:
Switch(config-if)# dot1x critical vlan 350
Switch(config-if)#
Related Commands
vlan-id (Optional) Specifies the VLANs; valid values are from 1 to 4094.
Release Modification
12.2(31)SG Support for this command was introduced on the Catalyst 4500 series switch.
Command Description
dot1x critical Enables the 802.1X critical authentication on a port.
dot1x critical eapol Enables sending EAPOL success packets when a port is
critically authorized partway through an EAP exchange.
dot1x critical recovery delay Sets the time interval between port reinitializations.
show dot1x Displays dot1x information.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E