Cisco Certified Network Associate (CCNA) Practice Exam 2026 – The Comprehensive All-in-One Guide to Exam Success!

The situation described indicates that both the line status and protocol status are up, which means that the physical and data link layers are functioning correctly. This implies that there is a successful connection between devices at those layers.

When problems persist despite these statuses being up, the likely issue lies at a higher layer, particularly in Layer 3, which is responsible for logical addressing and routing. In the OSI model, Layer 3 is where IP addressing operates, and if network issues are occurring despite the interfaces showing as operational, this could point to issues such as incorrect IP configurations, routing problems, or even issues with subnetting.

Thus, when network problems emerge despite positive interface statuses, it's essential to investigate Layer 3 components like IP address assignments, routing tables, and related protocols to identify the root cause of the connectivity issues.