In this scenario, which two statements are correct by default?

You are building an IP fabric underlay for your data center. You are asked to ensure that the two spine devices are in the same AS (65000) while the six leaf devices are in a different AS (65512).

In this scenario, which two statements are correct by default? (Choose two.)
A . All BGP routes advertised by a leaf device will be accepted on the spine devices.
B . A leaf device will accept all BGP routes received from the spine that were originated from another leaf device.
C . All BGP routes advertised by a leaf device will be rejected on the spine devices.
D . A leaf device will reject all BGP routes received from the spine that were originated from another leaf device.

View Answer

Answer: AB

Explanation:

In an EBGP setup with different AS numbers for spine and leaf devices, all BGP routes advertised by a leaf device will be accepted on the spine devices as they are considered external routes. Additionally, a leaf device will accept all BGP routes received from the spine that were originated from another leaf device, enabling full connectivity within the fabric.

Reference: EBGP Configuration for IP Fabric