Users Guide

Version Description
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
7.6.1.0 Introduced on the C-Series and S-Series.
7.4.1.0 Introduced on the E-Series.
Related Commands
• dot1x authentication (Conguration) — enable dot1x globally.
dot1x critical-vlan
Congure critical-VLAN for users or devices when authentication server is not reachable.
Syntax
[no] dot1x critical-vlan vlan-id
Parameters
vlan-id Enter the VLAN identier. The VLAN-ID range is from 1 to 4094.
Defaults Not Congured.
Command Modes
INTERFACE
INTERFACE (BATCH MODE)
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S3100 series, S4048–ON, S4048–ON, S4810, S4820T, S5000, S6000,
S6000–ON, S6100–ON, the Conguration Terminal Batch mode on C9010, Z9100–ON,
and Z9500.
9.9(0.0) Introduced on the C9000 Series.
Usage Information
The dot1x critical-vlan command congures critical VLAN for the interface. If the authentication server is
not reachable or not responding, the authenticator places the port or the supplicant in critical VLAN within the rst
attempt.
Use this command in Interface Batch mode to congure critical VLAN for users in a dual-homing setup.
Example
Dell(conf)#show dot1x interface ten gigabit ethernet 0/41
802.1x information on Te 0/41:
-----------------------------
Dot1x Status: Enable
Port Control: AUTO
Port Auth Status: AUTHORIZED (CRITICAL-VLAN)
Re-Authentication: Enable
Untagged VLAN id: 400
Guest VLAN: Enable
Guest VLAN id: 400
Auth-Fail VLAN: Enable
802.1X 159