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4 Web-based Switch Configuration
D-Link DGS-2000 Series Ethernet Switch User Manual
5
5
2
2
Role:
The user can choose between
UNI
or
NNI
role.
UNI –
To select a user-network interface which specifies that communication between the specified
user and a specified network will occur.
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.
Miss Drop:
Specifies to enable or disable the Miss Drop. If Miss Drop is enabled, the packet does not match
any assignment rule in the VLAN translation and Q-in-Q profile will be dropped. If disabled, the packet will be
forwarded and will be assigned to the PVID of the received port.
Add Inner Tag:
Unselect the
Disable
check box and enter an entry that an Inner Tag will be added to the
entry.
Click
Apply
to make the configurations take effect.
Configuration > QinQ > VLAN Translation 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 Settings
From Port / To Port:
A consecutive group of ports that are part of the VLAN configuration starting with the
selected port.
Action:
Specify for SPVID packets to be added or replaced.
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.
Priority:
Specifies the CVID entry priority.
Click Apply to make the configurations take effect. 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.