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DES-7200 Configuration Guide Chapter 12 QinQ Configuration
12-19
Note
Disabling inter-VLAN MAC address duplication will remove
all learned MAC address entries of other VLANs from the
destination VLAN.
Inter-VLAN MAC address duplication can be set only once
for a VLAN on a port. To modify the configuration, delete it
first.
This function cannot be used in conjunction with share
VLAN. MAC address cannot be duplicated into dynamic
VLAN.
Up to 8 destination VLANs can be configured on a port.
Address duplication takes effect even though the port is not
in the specific destination VLAN.
Address duplication cannot be enabled on
host/promiscuous port, mirroring destination port or the port
with port security and 802.1x enabled.
The priority of duplicated address is higher than dynamic
address but lower than other types of address.
When the source MAC address is aging, the duplicated
address is aging as well. This also applies to deleting MAC
address.
Hot backup is not supported. When master-slave handover
occurs, it is recommended users to disable and then enable
address duplication.
The MAC address entries obtained by inter-VLAN MAC
address duplication cannot be deleted by hand. To delete
these entries, disable inter-VLAN MAC address duplication.
For the dot1q-tunnel port of the 7200-24, 7200-24G,
7200-48, 7200-48P, 7200-2XG, 7200-4XG, 7200-24GE and
7200-24G2XG line cards of DES-7200 series, MAC address
is learned to flow-based outer tag. Hence, MAC address
duplication is not mandatory. For other types of line cards,
MAC address is learned to the default VLAN of the
dot1q-tunnel ort. Hence, MAC address duplication is
necessary.
The following example shows how to configure address duplication of the user
tag:
DES-7200(config)# interface gigabitethernet 0/1
DES-7200(config)# switchport mode trunk
DES-7200(config-if)#mac-address-mapping destination-vlan5 source-vlan 1-3
DES-7200(config)# end
DES-7200# show interface mac-address-mapping
Ports destination-VID Source-VID-list