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4 Configuration DES-1210/ME Series Metro Ethernet Managed Switch User Manual
40
NNI – To select a network-to-network interface specifies that communication between two specified
networks will occur.
Outer TPID (hex: 0x1-0xffff): The Outer TPID is used for learning and switching packets. The Outer TPID
constructs and inserts the outer tag into the packet based on the VLAN ID and Inner Priority.
VLAN Translation: Specify the VLAN Translation is enabled or disabled on the ports.
Miss Drop: This option enables or disable C-VLAN based SP-VLAN assignment miss drop. If Missdrop is
enabled, the packet that does not match any assignment rule in the QinQ profile will be dropped. If disabled,
then the packet will be forwarded and will be assigned to the PVID of the received port.
Add Inner Tag: Specifies that an Inner Tag will be added to the entry. By default the Disabled option is
selected.
Click Apply to implement changes made.
Configuration > QinQ > VLAN Translation CVID Entry Settings
The VLAN Translation translates the VLAN ID carried in the data packets it receives from private networks
into those used in the Service Providers network.
Figure 4.62 - Configuration > QinQ > VLAN Translation CVID Entry Settings
Action: Specify for SPVID packets to be added or replaced.
Port: Specify the ports go be configured.
CVID List (1-4094): The customer VLAN ID List to which the tagged packets will be added.
SVID (1-4094): This configures the VLAN to join the Service Providers VLAN as a tagged member.
Click Apply to implement changes made. Click Delete All to remove all the CVID entries.
Q-in-Q and VLAN Translation Rules:
For Ingress untagged packets at UNI ports:
1. The Switch does not reference the VLAN translation table.
2. Check the Switch VLAN tables. The Sequence is MAC-based VLAN -> subnet-based VLAN ->
protocol-based VLAN -> port-based VLAN. If matched, the matched VLAN will become this packet’s
SPVLAN.
For Ingress tagged packets at UNI ports:
1. The Switch looks up the VLAN translation table. If matched, the VLAN tag will be translated
(replace CEVLAN with SPVLAN, or add SPVLAN).
2. Or, check the Switch VLAN tables. The sequence is the same as above. The matched VLAN
becomes this packet’s SPVLAN.
Configuration > 802.1v Protocol VLAN > 802.1v Protocol Group Settings
The 802.1v Protocol Group Settings page allows user to configure the untagged ports of different protocols
on the same physical port.
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