Cisco Catalyst 4500 Series Command Reference Guide

2-415
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
mac-address-table aging-time
mac-address-table aging-time
To configure the aging time for the entries in the Layer 2 table, use the mac-address-table aging-time
command. To reset the seconds value to the default setting, use the no form of this command.
mac-address-table aging-time seconds [vlan vlan_id]
no mac-address-table aging-time seconds [vlan vlan_id]
Syntax Description
Defaults Aging time is set to 300 seconds.
Command Modes Global configuration mode
Command History
Usage Guidelines If you do not enter a VLAN, the change is applied to all routed-port VLANs.
Enter 0 seconds to disable aging.
Examples This example shows how to configure the aging time to 400 seconds:
Switch(config)# mac-address-table aging-time 400
Switch(config)#
This example shows how to disable aging:
Switch(config)# mac-address-table aging-time 0
Switch(config)
Related Commands
seconds Aging time in seconds; valid values are 0 and from 10 to 1000000 seconds.
vlan vlan_id (Optional) Single VLAN number or a range of VLANs; valid values are from 1
to 4094.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
12.1(12c)EW Support for extended addressing was added.
Command Description
show mac-address-table aging-time Displays MAC address table aging 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