An Input-Queueing TSN Switching Architecture to Achieve Zero Packet Loss for Timely Traffic

TL;DR

This paper proposes a novel TSN switching architecture with specialized scheduling policies to achieve zero packet loss and bounded latency, addressing critical needs in industrial and automotive networks.

Contribution

It introduces an input-queueing TSN switching architecture with two new scheduling policies, M-TDMA and M-EDF, ensuring zero packet loss with bounded latency.

Findings

Achieves zero packet loss under specified conditions.

Provides scheduling policies with proven sufficient conditions.

Addresses deterministic connectivity in industrial and automotive networks.

Abstract

Zero packet loss with bounded latency is necessary for many applications, such as industrial control networks, automotive Ethernet, and aircraft communication systems. Traditional networks cannot meet the such strict requirement, and thus Time-Sensitive Networking (TSN) emerges. TSN is a set of standards proposed by IEEE 802 for providing deterministic connectivity in terms of low packet loss, low packet delay variation, and guaranteed packet transport. However, to our knowledge, few existing TSN solutions can deterministically achieve zero packet loss with bounded latency. This paper fills in this blank by proposing a novel input-queueing TSN switching architecture, under which we design a TDMA-like scheduling policy (called M-TDMA) along with a sufficient condition and an EDF-like scheduling policy (called M-EDF) along with a different sufficient condition to achieve zero packet loss with bounded latency.