The agricultural industry has been searching for a high-speed successor to the 250~kbit/s CAN bus backbone of ISO~11783 (ISOBUS) for over a decade, yet no protocol-level solution has reached standardization. Meanwhile, modern planters, sprayers, and Virtual Terminals are already constrained by the bus bandwidth. This paper presents ISO FastLane, a gateway-less dual-stack approach that routes point-to-point ISOBUS traffic over Ethernet while keeping broadcast messages on the existing CAN bus. The solution requires no new state machines, no middleware, and no changes to application layer code: only a simple Layer~3 routing decision and a lightweight peer discovery mechanism called Augmented Address Claim (AACL). Legacy devices continue to operate unmodified and unaware of FastLane traffic. Preliminary tests reported on the paper demonstrate that ISO FastLane accelerates Virtual Terminal object pool uploads by factor of 8 and sustains Task Controller message rates over 100 times beyond the current specification limit. Because ISO FastLane builds entirely on existing J1939 and ISO~11783 conventions, it can be implemented by ISOBUS engineers in a matter of weeks. This is delivering tangible performance gains today, without waiting for the long-term High Speed ISOBUS solution.

翻译：农业领域寻求替代ISO 11783（ISOBUS）中250 kbit/s CAN总线主干网的高速后继协议已逾十年，但迄今尚无协议级解决方案达成标准化。与此同时，现代播种机、喷雾器和虚拟终端已受限于总线带宽。本文提出ISO FastLane，一种无需网关的双栈方法，将点对点ISOBUS流量通过以太网路由，同时使广播消息保留在现有CAN总线上。该方案无需新增状态机、中间件或修改应用层代码：仅需简单的第3层路由决策及一种称为增强地址声明（AACL）的轻量级对等节点发现机制。传统设备可继续无修改运行，且不会感知FastLane流量。论文报告的初步测试表明，ISO FastLane可将虚拟终端对象池上传速度提升8倍，并使任务控制器消息速率持续超过当前规范限制100倍以上。由于ISO FastLane完全基于现有J1939与ISO 11783规范构建，ISOBUS工程师可在数周内完成实现。这为当前提供了切实的性能提升，无需等待长期的高速ISOBUS解决方案。