High-Precision Latency Forwarding over Packet-Programmable Networks

Abstract

New emerging network applications such as Industry 4.0, haptic applications, and holographic-type communications will require support for stringent end-to-end latency objectives with precisely specified lower and upper bounds. These requirements will push current best-effort Internet technology and QoS mechanisms to their limit. This paper presents a new approach to achieve high-precision latency objectives, carrying latency objectives as part of packet metadata and taking differentiated actions at network nodes depending on a packet’s remaining latency budget, its destination, and the latency encountered so far. A Proof-of-Concept has been developed using BPP, a novel programmable networking framework.

Topics & Concepts