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Volume 7

The Ethernet Backbone

Architecting Deterministic Networks for Next-Gen Automotive Systems

The software-defined vehicle is nothing without a deterministic nervous system.

Strategic Objectives

• Master the physical layer standards of IEEE 802.3cg and 802.3bp.

• Achieve microsecond precision using Time-Sensitive Networking (TSN) protocols.

• Optimize backbone topology for reduced weight and maximum throughput.

• Ensure safety-critical reliability in high-interference automotive environments.

The Core Challenge

Modern vehicles are hitting a bandwidth wall, where traditional CAN and LIN buses can no longer support the massive data loads of ADAS and autonomous driving.

01

The Shift to Zonal Architecture

02

The Physical Layer Foundation

03

IEEE 802.3bp: 1000BASE-T1

04

IEEE 802.3cg: 10BASE-T1S

05

Unshielded Twisted Pair Dynamics

06

Determinism in Networking

07

Time-Sensitive Networking (TSN)

08

Timing and Synchronization

09

Traffic Shaping and Scheduling

10

Preemption and Fragmentation

11

Redundancy and Reliability

12

Electromagnetic Compatibility (EMC)

13

The Audio Video Bridging (AVB) Legacy

14

Switching Fabric Architecture

15

The Role of PHY Transceivers

16

Quality of Service (QoS) Strategies

17

Network Topology Optimization

18

Bandwidth Management and Policing

19

The Impact of Propagation Delay

20

Testing and Validation

21

The Future of 10G and Beyond

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