Mac-Address Timer - Huawei Quidway S8500 Series Command Manual

Command Manual – System Management
Quidway S8500 Series Routing Switches
System View: return to User View with Ctrl+Z.
[Quidway] vlan 100
[Quidway-vlan100] mac-address max-mac-count 600

2.1.8 mac-address timer

Syntax
mac-address timer { aging age | no-aging }
undo mac-address timer aging
View
System view
Parameter
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.
Description
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 Ethernet 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If aging time is too long, the Ethernet switch will store a great number of out-of-date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.
Caution:
The aging of dynamic MAC address is completed during the second aging cycle that
has been configured.
Example
# Configure the entry aging time of Layer-2 dynamic address table to be 500 seconds.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
Huawei Technologies Proprietary
2-8
Chapter 2 MAC Address Table Management
Commands