H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 36)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Configure the aging timer for
dynamic MAC address
entries.
mac-address timer { aging seconds
| no-aging }
Optional.
By default, the aging timer is 300
seconds.
The no-aging keyword disables the
aging timer.
Configuring the MAC learning limit on a port
To prevent a large MAC address table from degrading forwarding performance, limit the number of
MAC addresses that a port can obtain. Do not configure the MAC learning limit on any member ports
of an aggregation group. Otherwise, the member ports cannot be selected.
To configure the MAC learning limit on a Layer 2 Ethernet interface or all ports in a port group:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view or port
group view.
• Enter Layer 2 Ethernet interface
view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
Settings in interface view take
effect on the interface only.
Settings in port group view take
effect on all member ports in the
port group.
3. Configure the MAC learning
limit on the interface or port
group.
mac-address max-mac-count
count
By default, no limit is configured.
Layer 2 aggregate interfaces do
not support the mac-address
max-mac-count command.
Displaying and maintaining MAC address tables
Task Command Remarks
Display MAC address table
information.
display mac-address [ mac-address [ vlan vlan-id ] |
[ [ dynamic | static ] [ interface interface-type
interface-number ] | blackhole ] [ vlan vlan-id ]
[ count ] ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display the aging timer for
dynamic MAC address
entries.
display mac-address aging-time [ | { begin |
exclude | include } regular-expression ] Available in any
view.
Display the system or interface
MAC address learning state.
display mac-address mac-learning [ interface-type
interface-number ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view.