2V0-41.24 Question 200
Single answerAn organization has two data centers in different geographic locations connected over the internet. They want to stretch a Layer 2 network between the two sites to enable VMs in both locations to communicate as if they were on the same subnet. The organization has deployed NSX-T Data Center and plans to use an L2 VPN for this purpose. What is a necessary requirement for configuring an L2 VPN in NSX-T?
- A
A Tier-0 Gateway must be configured at both sites.
- B
An Edge Node must be configured as the L2 VPN Server.
- C
The MTU size on the underlying transport network must be at least 1500 bytes.
- D
A dedicated VLAN is required at both sites for the L2 VPN tunnel.
Show answer and explanation
Correct answer: B
Explanation
In NSX-T, an L2 VPN allows the extension of Layer 2 networks across geographically dispersed locations. To configure an L2 VPN, an NSX-T Edge Node must be set up as the L2 VPN Server. This is a critical requirement, as the Edge Node handles the encapsulation and decapsulation of Layer 2 frames for the VPN tunnel. Other options, such as the MTU size or Tier-0 Gateway, are either incorrect or not strict requirements for an L2 VPN.
- A. Incorrect.
This is incorrect because a Tier-0 Gateway is not specifically required for configuring an L2 VPN. An L2 VPN can be set up using a Tier-1 Gateway as long as it is connected to the Edge Node.
- B. Correct.
This is correct because an NSX-T Edge Node must be configured as the L2 VPN Server to establish the tunnel and enable Layer 2 extension between sites.
- C. Incorrect.
This is incorrect because the MTU size on the transport network must support at least 1600 bytes (not 1500 bytes) to accommodate the encapsulation overhead of the L2 VPN.
- D. Incorrect.
This is incorrect because an L2 VPN does not require a dedicated VLAN at both sites; it operates at Layer 2 and uses tunnels to extend the network.