3Com 4200G 24-Port - Configuration Example; Displaying MAC Address Table Information; Adding a Static MAC Address Entry Manually

1-7
Operation Command Description
Set the maximum number of
MAC addresses the port can
learn
mac-address max-mac-count
count
Required
By default, the number of the
MAC addresses a port can
learn is not limited.
Displaying MAC Address Table Information
To verify your configuration, you can display information about the MAC address table by executing the
display command in any view.
Table 1-7 Display MAC address table information
Operation Command Description
Display information about the
MAC address table
display mac-address
[ display-option ]
Display the aging time of the
dynamic MAC address entries
in the MAC address table
display mac-address
aging-time
The display command can be
executed in any view.
Configuration Example
Adding a Static MAC Address Entry Manually
Network requirements
The server connects to the switch through GigabitEthernet 1/0/2. To prevent the switch from
broadcasting packets destined for the server, it is required to add the MAC address of the server to the
MAC address table of the switch, which then forwards packets destined for the server through
GigabitEthernet 1/0/2.
z The MAC address of the server is 000f-e20f-dc71.
z Port GigabitEthernet 1/0/2 belongs to VLAN 1.
Configuration procedure
# Enter system view.
<Sysname> system-view
[Sysname]
# Add a MAC address, with the VLAN, ports, and states specified.
[Sysname] mac-address static 000f-e20f-dc71 interface GigabitEthernet 1/0/2 vlan 1
# Display information about the current MAC address table.
[Sysname] display mac-address interface GigabitEthernet 1/0/2
MAC ADDR VLAN ID STATE PORT INDEX AGING TIME(s)
000f-e20f-dc71 1 Config static GigabitEthernet1/0/2 NOAGED
000f-e20f-a7d6 1 Learned GigabitEthernet1/0/2 AGING
000f-e20f-b1fb 1 Learned GigabitEthernet1/0/2 AGING
000f-e20f-f116 1 Learned GigabitEthernet1/0/2 AGING