There are many different time-critical Ethernet applications in the automobile. They include advanced driver assistance systems (ADAS) with cameras and (radar) sensors, real-time audio and video streams, and backbones for synchronizing various physical domains (Figure 1). Another use case is on-board data logging. Moreover, devices networked via Ethernet must naturally also be synchronized with...

This paper presents a work-in-progress design and implementation of a software-based token-passing Ethernet protocol for multipoint communications in real-time applications , that does not require any modification to existing Ethernet hardware. Because the protocol is based on fixed priorities, applications using it can be easily modeled using common techniques for fixed priority systems, and w...

100 Gigabit Ethernet over backplane is a subject of the current IEEE P802.3bj standardization effort. The 4 x 25 Gb/s design presents significant challenges to today's technology and several new methodologies were developed for the task. We explain the philosophy driving the design of the standard, present a summary of problems solved, and provide details on the most important methodologies. In...

Executive Overview ......................................................................3 Industrial Ethernet: Business Perspectives .....................................4 Profinet is an All-Encompassing Solution for Industrial Ethernet .........5 Profinet at Work: Five Case Studies............................................. 12 Conclusions and Recommendations ...................................

The Ethernet encapsulation (framing) overhead is a result of adding 8-byte frame preamble, 14-byte Ethernet header, and 4-byte FCS field to MAC Service data units (m_sdu) comprised of user’s data. Additionally, at least 12-byte minimum inter-frame gap (IFG) should be left between two adjacent frames. Thus, the absolute overhead per one frame is constant and equal to 38 bytes (see Figure 1). Thi...

Currently, Ethernet is broadly used in LAN, datacenter and enterprise networks, storage networks, high performance computing networks and so on. Along with the popularity of Ethernet comes the requirement of enhancing Ethernet with congestion control. On the other hand, Ethernet speed extends to 40Gbps and 100Gbps recently, and even 400Gbps in the near future. The ultra-high speed requires cong...

Ethernet is becoming one of the dominant aggregation technologies for carrier transport networks. Because it is a LAN technology, native bridged Ethernet does not fulfil all carrier requirements. Several schemes have been proposed to allow Ethernet to fulfil such requirements. Carrier Ethernet technologies rely on domain-wide or local label-based forwarding, although some of them use a smaller ...

This article discusses the traffic types typically used in industrial networks. The authors propose a number of methods generating that can be modeling sources networks under consideration. proposed models have been developed on basis ON/OFF model. solutions applied to model typical are systems, such as Time-Triggered (TT) traffic, Audio-Video Bridging (AVB) or Best Effort traffic. four with mo...

This paper presents a design and realization method for led control system through ethernet based on embedded linux.The terminal hardware design using ARM9 S3C2440 processor for centralization virtue of SDRAM, NAND Flash, Ethernet, USB module etc.Software system adopts the embedded linux.The main function realized by C programming to achieve real time status of system. The result shows the real...