3com 8807 Reference Guide

undo mac-address timer aging

System view

aging age: Specifies the aging time (measured in seconds) of the Layer-2 dynamic 
address table entry, ranging from 10 to 630. By default, the aging time is 300 
seconds.

no-aging : No aging time.

Use the mac-address timer command to configure the aging time of the Layer-2 
dynamic address table entry.

Use the undo mac-address timer command to restore the default value.

If aging time is too short, the MAC address might be deleted before the switch 
gets the address information. That way the switch broadcasts the received packets 
to all the ports within the VLAN. This will affect the switch operation performance.

If aging time is too long, the switch will store a great number of out-of-date MAC 
address tables. This will consume MAC address table resources and the switch will 
not be able to update MAC address table according to the network change.

c 

# Configure the entry aging time of Layer-2 dynamic address table to be 500 
seconds.

<SW8800> system-view

 

System View: return to User View with Ctrl+Z.

 

[SW8800] mac-address timer aging 500 

reset mac-address { all | dynamic | static | interface { interface-type 
interface-number} | vlan vlan-id }

User view

all: Clears all of the MAC address entries.

dynamic: Clears all dynamic MAC address entries.

static: Cleasr all static MAC address entries.

interface-type is the type of the port, and interface-number is the number of the 
interface.