H3C Technologies H3C S3100 Series Switches - Manual (Page 209)

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With the MAC address replication feature enabled, the switch copies the MAC address entries of the
original VLAN to the MAC address table of the marked VLAN. When the switch receives a response
packet from the marked VLAN, it searches the MAC address table of the marked VLAN, obtains the
outbound port for the MAC address of the packet, and unicasts the packet. This feature reduces the
number of broadcasts in the network, as shown in Figure 1-7 .
Figure 1-7 How the port learns a MAC address when MAC address replication is enabled
Likewise, the MAC address entries of the marked VLAN can be copied to the MAC address table of the
original VLAN. When a response packet arrives at the downstream port, the switch determines the
outbound port for the packet by searching the MAC address table of the original VLAN.
MAC Address Table Management
MAC Address Table Management Configuration Task List
Complete the following tasks to configure MAC address table management:
Task Remarks
Configuring a MAC Address Entry Required
Setting the MAC Address Aging Timer Optional
Setting the Maximum Number of MAC Addresses a Port Can Learn Optional
Disabling MAC Address learning for a VLAN Optional
Assigning MAC Addresses for Ethernet Ports Optional
Configuring MAC Address Replication Optional