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Cisco Catalyst 4500 Series Command Reference Guide

Cisco Catalyst 4500 Series
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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
authentication timer
authentication timer
To configure the authentication timer, use the authentication timer command in interface configuration
mode. To return to the default settings, use the no form of this command.
authentication timer {{inactivity value} | {reauthenticate {server | value}} | {restart value}}
no authentication timer {{inactivity value} | {reauthenticate value} | {restart value}}
Syntax Description
Command Default The default settings are as follows:
• inactivity value—Off.
• reauthenticate value—3600
• restart value—Off
Command Modes Interface configuration mode
Command History
Usage Guidelines Reauthentication only occurs if it is enabled on the interface.
The authentication timer reauthenticate value command replaces the following dot1x command that
is deprecated in Cisco IOS Release 12.2(50)SG and later releases:
[no] dot1x timeout {reauth-period seconds | quiet-period seconds | tx-period seconds |
supp-timeout seconds | server-timeout seconds}
inactivity value Specifies the amount of time in seconds that a host is allowed to be inactive
before being authorized. Range is 1 to 65535. Default is Off.
Note The inactivity value should be less than the reauthenticate timer
value, but configuring the inactivity value higher than the
reauthenticate timer value is not considered an error.
reauthenticate server Specifies that the reauthentication period value for the client should be
obtained from the authentication, authorization, and accounting (AAA)
server as Session-Timeout (RADIUS Attribute 27).
reauthenticate value Specifies the amount of time in seconds after which an automatic
reauthentication is initiated. Range is 1 to 65535. Default is 3600.
restart value Specifies the amount of time in seconds after which an attempt is made to
authenticate an unauthorized port. Range is 1 to 65535. Default is Off.
Release Modification
12.2(50)SG Support for this command was introduced.

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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