Caching in ILNP, Identifier Locator Communication Cache (ILCC) Implementation using Three-Way Handshake

– Identifier Locator Network Protocol (ILNP) is one of the prominent solutions to enhance Internet architecture and overrun current challenges. It is a Host-based Identifier/ Locator Split Architecture scheme that operates based on address rewriting. In order to perform address rewriting, each ILNP host uses a network layer logical cache to store state information related to the communicated hosts called Identifier Locator Communication Cache (ILCC). As ILCC plays a fundamental role in every ILNP packet transmission and reception, it must adopt an effective policy to ensure high network stack performance. In this paper, we discuss ILNP caching and its role in performing ILNP operations. As ILNP caching operate at the network layer, we survey the gain from this caching with different transport layer protocols scenarios. After that, we propose a novel approach to implement ILNP caching policy using three-way handshake mechanism between communicated peers. The proposed approach is evaluated after being implemented in Linux OS kernel, and its performance is compared with other implementation. The obtained results show that our policy keeps network stack execution time at average values and enhances host immunity against denial of service attacks that may target network layer sessions.