3com S7906E Guide De Référence

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1-5 
Default Level 
2: System level 
Parameters 
blackhole: Blackhole MAC address entries. These entries do not age but you can add or remove them. 
The packets whose destination MAC addresses match blackhole MAC address entries are dropped. 
mac-address: Specifies a MAC address in the format of H-H-H, where 0s at the beginning of each H 
(16-bit hexadecimal digit) can be omitted; for example, inputting “f-e2-1” indicates that the MAC address 
is “000f-00e2-0001”. 
vlan vlan-id: Specifies an existing VLAN to which the Ethernet interface belongs, where vlan-id is the 
specified VLAN ID, in the range 1 to 4094. 
dynamic: Dynamic MAC address entries. Aging time is set for these entries. 
static: Static MAC address entries. These entries do not age but you can add or remove them. 
interface  interface-type interface-number: Outbound interface, with interface-type interface-number 
representing the interface type and number. 
Description 
Use the mac-address command to add or modify a MAC address entry. 
Use the undo mac-address command to remove one or all MAC address entries. 
Note that a static or blackhole entry will not be overwritten by a dynamic entry, but a dynamic entry can 
be overwritten by a static or blackhole entry. 
As your MAC address entries configuration cannot survive a reboot, save it after completing the 
configuration. The dynamic entries however will be lost whether you save the configuration or not. 
Related commands: display mac-address
Examples 
# Add a static entry for MAC address 00e0-fc01-0101. All frames destined to this MAC address are sent 
out of port GigabitEthernet 2/0/1 which belongs to VLAN 2. 
<Sysname> system-view 
[Sysname] mac-address static 00e0-fc01-0101 interface gigabitethernet 2/0/1 vlan 2 
mac-address mac-learning disable 
Syntax 
mac-address mac-learning disable 
undo mac-address mac-learning disable 
View 
System view, Ethernet interface view, Layer-2 aggregate interface view, port group view 
Default Level 
2: System level