Interaction between the same OSI layer on different devices is referred to as what?

Interactions between the same OSI layer on different devices are described as same-layer interaction. This term is used to illustrate how protocols at the same layer on different systems can communicate with each other. For example, when two devices communicate over a network using the TCP protocol in the transport layer, they are engaging in same-layer interaction.

In this scenario, both devices utilize the same protocol to facilitate communication, which is essential for data exchange between them. This concept emphasizes the importance of protocol adherence at each OSI layer to ensure seamless communication across different network devices.

The other terms mentioned refer to different kinds of interactions. Cross-layer interaction involves multiple layers communicating or sharing information, while adjacent-layer interaction typically refers to interactions between layers that are directly above or below each other in the OSI model. Session-layer interaction, on the other hand, specifically describes functions pertaining to the session layer, which involves managing sessions for ongoing communications. Understanding these distinctions helps clarify the unique roles each layer plays in network communications.