Enhancements for Hardware-based IEEE802.1CB embedded in Automotive Gateway System-on-Chip

In this work, authors present a Hardware based strategy for IEEE802.1CB Network Reliability embedded in Automotive Gateways (GW). It is a new approach for HW efficient and cost-effective integration of Frame Replication and Elimination for Reliability (FRER) algorithm within automotive Network-on-Chip / System-on-Chip. In essence, it is a HW architecture that permits to manage the complex integration of IEEE802.1CB within In-Vehicle Networks. The FRER algorithm is split into smaller functionalities which are allocated across the different processing stages of the GW, maximizing device and network performance. The proposed architecture has a strong focus on Functional Safety, introducing important enhancements to overcome IEEE802.1CB limitations identified in the state of the art: data content verification, meaningful network diagnosability and performance verification. It moves a step forward towards fail operational systems and the compliance with ISO 26262, contributing to future autonomous driving networking solutions.