Autosar-capable ethernet switches brought to the automotive industry

24-05-2022 | Vector | Automotive & Transport

Vector has created the first Autosar-capable Ethernet switch powered by Marvell's Brightlane solution. The software implemented in the switch's CPU follows the AUTOSAR methodology for model definition, distribution and component development. By moving significant parts of the networking stack to the switch, CPU resources are freed for tasks that run more efficiently on the host microcontroller. Also, the company's switch software facilitates certain security functions such as Firewalling and MACsec.

Efficient use of available resources is another reason for employing these Ethernet switches. Only such switches deliver the low latency times needed for use cases such as firewall and MACsec. Also, functions such as PTP, network management, the SOME/IP protocol and parts of the diagnostics are moved from the microcontroller to the switch. Consequently, the microcontroller has more runtime available for its application tasks.

Marvell's Brightlane 88Q5072 secure multi-gig Ethernet switch is available for tier ones and car manufacturers. Vector supply the newly developed embedded software MICROSAR Classic veSwitch for Ethernet switches. The companies believe that using standardised products instead of project-specific software is beneficial. The software has demonstrated itself in practice, and the effort needed to qualify safety-relevant use cases is notably decreased.

"We are pleased to partner with Vector to offer an AUTOSAR-capable switch solution. This accelerates the development of software-defined vehicles based on the Marvell Brightlane secure multi-gig Ethernet switch," said Mike Yeager, vice president and general manager, Automotive Business Unit, Marvell. "Vector's MICROSAR Classic veSwitch software leverages the AUTOSAR workflow for essential security functions, such as automotive firewalls and MACsec, in an open software architecture and enables faster time-to-market."

"A fast time-to-market was also of high priority for us. This was achieved by a close cooperation with Marvell and by using qualified standard software," adds Jochen Rein, head of Product Management Embedded Software. "Our modular approach results in a hardware-optimised and flexible solution – ideal for automotive-compliant switches, including firewall and safety applications. The developer workflow is optimally supported by the Vector DaVinci Tools."

In the first version, the embedded software will meet the quality requirements according to Automotive SPICE. In future releases, veSwitch will be offered according to ISO 26262, and an evaluation package is available.

By Natasha Shek