Lldp Remote Port Table; Qinq - D-Link DGS-3600 Series User Manual

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xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch

LLDP Remote Port Table

The following window is used to display the LLDP Remote Port Brief Table.
To view this window, click L2 Features > LLDP > LLDP Remote Port Table, as shown below.
Figure 7- 63. LLDP Remote Port Brief Table window
Click the View Normal and View Detailed hyperlinks to display additional information.

QinQ

QinQ is designed for service providers to carry traffic from multiple users across a network. QinQ is used to maintain customer
specific VLAN and Layer 2 protocol configurations even when the same VLAN ID is being used by different customers. This is
achieved by inserting SPVLAN tags into the customer's frames when they enter the service provider's network, and then
removing the tags when the frames leave the network.
Customers of a service provider may have different or specific requirements regarding their internal VLAN IDs and the number of
VLANs that can be supported. Therefore customers in the same service provider network may have VLAN ranges that overlap,
which might cause traffic to become mixed up. So assigning a unique range of VLAN IDs to each customer might cause
restrictions on some of their configurations requiring intense processing of VLAN mapping tables which may exceed the VLAN
mapping limit. QinQ uses a single service provider VLAN (SPVLAN) for customers who have multiple VLANs. Customer's
VLAN IDs are segregated within the service provider's network even when they use the same customer specific VLAN ID. QinQ
expands the VLAN space available while preserving the customer's original tagged packets and adding SPVLAN tags to each
new frame.
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