Which of the following enables service providers to support multiple customers with the same VLAN ID over the same backbone?

The correct answer is B. VLAN Stacking. VLAN Stacking, also known as Q-in-Q tunneling, is a technology that allows multiple customers to use overlapping VLAN IDs while being transported over a shared service provider network. Customer VLAN (C-VLAN): The VLAN used by the customer in their own network. Service VLAN…

Network and Infrastructure Performance Management Integration

Question

Options

AVLAN Trunking
BVLAN Stacking
CVLAN Tagging
DVLAN Routing

How the community answered

(32 responses)

A
6% (2)
B
78% (25)
C
13% (4)
D
3% (1)

Explanation

VLAN Stacking, also known as Q-in-Q tunneling, is a technology that allows multiple customers to use overlapping VLAN IDs while being transported over a shared service provider network. Customer VLAN (C-VLAN): The VLAN used by the customer in their own network. Service VLAN (S-VLAN): The VLAN used by the service provider to encapsulate the customer VLAN. When VLAN stacking is applied: A customer's Ethernet frame already tagged with a C-VLAN is encapsulated with an additional outer S-VLAN tag. This way, multiple customers can use the same C-VLAN ID, but remain isolated by the unique S- VLAN assigned to them by the service provider.

Topics

#VLAN stacking#QinQ#service provider#multi-tenant VLAN

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