Configuring The Mac Learning Limit On Ports; Displaying And Maintaining Mac Address Tables - HP 6125G Configuration Manual

the device deletes that entry. This aging mechanism ensures that the MAC address table can quickly
update to accommodate the latest network changes.
Set the aging timer appropriately. Too long an aging interval might cause the MAC address table to
retain outdated entries, exhaust the MAC address table resources, and fail to update its entries to
accommodate the latest network changes. Too short an interval might result in removal of valid entries,
causing unnecessary flooding, which might affect device performance.
To configure the aging timer for dynamic MAC address entries:
Step
1. Enter system view.
2. Configure the aging
timer for dynamic
MAC address entries.
You can reduce flooding on a stable network by disabling the aging timer to prevent dynamic entries
from unnecessarily aging out. By reducing flooding, you improve not only network performance, but also
security, because you reduce the chances that a data packet will reach unintended destinations.

Configuring the MAC learning limit on ports

To prevent the MAC address table from getting too large, you can limit the number of MAC addresses
that a port can learn.
To configure the MAC learning limit on a Layer 2 Ethernet interface:
Step
1. Enter system view.
2. Enter Layer 2
Ethernet interface
view.
3. Configure the
MAC learning limit
on the interface.
NOTE:
Do not configure the MAC learning limit on any member ports of an aggregation group. Otherwise, the
member ports cannot be selected.

Displaying and maintaining MAC address tables

Command
system-view
mac-address timer
{ aging seconds |
no-aging }
Command
system-view
interface interface-type
interface-number
mac-address max-mac-count count
23
Remarks
N/A
Optional
300 seconds by default.
The no-aging keyword disables the aging timer.
Remarks
N/A
N/A
No MAC learning limit is configured by
default.
Layer 2 aggregate interfaces do not support
this command.