Implementing Cisco Application Centric Infrastructure (DCACI) — Question 206

An engineer configures an L3Out between BLeaf1 and Core1. A Cisco Nexus 9000 Series Switch runs in NX-OS mode, and the two devices must peer using OSPF. The devices in the network are configured as follows:

• BLeaf1 has been configured with the IP address 10.1.0.2/31 and the router ID 0.0.0.2.
• Core1 has been configured with the IP address 10.1.0.3/31 and the router ID 0.0.0.1.
• On Cisco ACI, the engineer has enabled OSPF using the default OSPF settings.
• The engineer has configured OSPF on the NX-OS switch using the ip router ospf ACI_peering area 1 command.

Which action brings up the OSPF adjacency?

Answer options

Correct answer: D

Explanation

Changing the MTU on Core1 ensures that both devices can send and receive packets of the same size, which is crucial for OSPF adjacency formation. The other options do not address the underlying issue of mismatched MTUs, which can prevent OSPF neighbors from establishing properly.