JNCIP-SP: Juniper Networks Certified Professional – Service Provider (2023) — Question 28

You are configuring a BGP signaled Layer 2 VPN across your MPLS enabled core network. Your PE-2 device connects to two sites within the same VPN.
In this scenario, which statement is correct?

Answer options

• A. You must create a unique Layer 2 VPN routing instance for each site on the PE-2 device.
• B. By default on PE-2, the site’s local ID is automatically assigned a value of 0 and must be configured to match the total number of attached sites.
• C. You must use separate physical interfaces to connect PE-2 to each site.
• D. By default on PE-2, the remote site IDs are automatically assigned based on the order that you add the interfaces to the site configuration.

Correct answer: D

Explanation

The correct answer is D because, by default, the remote site IDs are assigned based on the order of interface addition. Option A is incorrect as you do not need a unique routing instance for each site. Option B is also wrong because the local ID does not need to match the number of sites. Option C is incorrect because you can use the same physical interface for multiple sites in a VPN.