24
Configuring a static or dynamic MAC address table entry in
system view
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Add or modify a
dynamic or static MAC
address entry.
mac-address
{
dynamic
|
static
}
mac
-
address
interface
interface
-
type
interface
-
number
vlan
vlan
-
id
By default, no MAC address
entry is configured.
Make sure that you have created
the VLAN and assigned the
interface to the VLAN.
Configuring a static or dynamic MAC address table entry in
interface view
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface
view.
interface
interface-type
interface-number
N/A
3.
Add or modify a static or
dynamic MAC address
entry.
mac
-
address
{
dynamic
|
static
}
mac
-
address
vlan
vlan
-
id
By default, no MAC address entry is
configured.
Make sure that you have created the
VLAN and assigned the interface to the
VLAN.
Configuring a blackhole MAC address entry
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Add or modify a
blackhole MAC
address entry.
mac-address blackhole
mac
-
address
vlan
vlan
-
id
By default, no MAC
address entry is
configured.
Make sure that you have
created the VLAN.
Disabling MAC address learning on a VLAN
Sometimes, you might need to disable MAC address learning to prevent the MAC address table from
being saturated, for example, when your device is being attacked by a large amount of packets with
different source MAC addresses.
When MAC address learning is disabled, the learned MAC addresses remain valid until they age out.
