JNCIE-SP: Juniper Networks Certified Expert – Service Provider (2021) — Question 6

You are designing an IP fabric using EBGP.
In this scenario, what are two ways of designing the ASN scheme for the IP fabric? (Choose two.)

Answer options

• A. Assign the same ASN to all devices.
• B. Assign the ASN to all leaf devices and a separate ASN to all spine devices.
• C. Assign a unique ASN to each individual device.
• D. Assign the same ASN used by the WAN service provider to the spine devices.

Correct answer: C, D

Explanation

Option C is correct because assigning a unique ASN to each device allows for better control and management in an EBGP design. Option D is also valid as using the same ASN as the WAN service provider for spine devices can simplify routing between the IP fabric and the WAN. Options A and B do not provide the same level of flexibility or adherence to best practices in an EBGP design.