Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET
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Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

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Chapter 2<strong>Catalyst</strong> <strong>3750</strong>-E <strong>and</strong> <strong>3560</strong>-E <strong>Switch</strong> <strong>Cisco</strong> <strong>IOS</strong> Comm<strong>and</strong>smac address-table aging-timemac address-table aging-timeUse the mac address-table aging-time global configuration comm<strong>and</strong> on the switch stack or on ast<strong>and</strong>alone switch to set the length of time that a dynamic entry remains in the MAC address table afterthe entry is used or updated. Use the no form of this comm<strong>and</strong> to return to the default setting. The agingtime applies to all VLANs or a specified VLAN.mac address-table aging-time {0 | 10-1000000} [vlan vlan-id]no mac address-table aging-time {0 | 10-1000000} [vlan vlan-id]Syntax Description0 This value disables aging. Static address entries are never aged or removed fromthe table.10-1000000 Aging time in seconds. The range is 10 to 1000000 seconds.vlan vlan-id (Optional) Specify the VLAN ID to which to apply the aging time. The range is 1to 4094.DefaultsThe default is 300 seconds.Comm<strong>and</strong> ModesGlobal configurationComm<strong>and</strong> HistoryRelease12.2(35)SE2ModificationThis comm<strong>and</strong> was introduced.Usage GuidelinesIf hosts do not send continuously, increase the aging time to record the dynamic entries for a longer time.Increasing the time can reduce the possibility of flooding when the hosts send again.If you do not specify a specific VLAN, this comm<strong>and</strong> sets the aging time for all VLANs.ExamplesThis example shows how to set the aging time to 200 seconds for all VLANs:<strong>Switch</strong>(config)# mac address-table aging-time 200You can verify your setting by entering the show mac address-table aging-time privileged EXECcomm<strong>and</strong>.Related Comm<strong>and</strong>sComm<strong>and</strong>show mac address-table aging-timeDescriptionDisplays the MAC address table aging time for all VLANsor the specified VLAN.OL-9776-08<strong>Catalyst</strong> <strong>3750</strong>-E <strong>and</strong> <strong>3560</strong>-E <strong>Switch</strong> Comm<strong>and</strong> Reference2-335

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