Title: Söze: One Network Telemetry Is All You Need for Per-flow Weighted Bandwidth Allocation at Scale Show Chinese title

Title: 致Söze：一种网络遥测技术就足以实现大规模逐流加权带宽分配

Abstract: Weighted bandwidth allocation is a powerful abstraction that has a wide range of use cases in modern data center networks. However, realizing highly agile and precise weighted bandwidth allocation for large-scale cloud environments is fundamentally challenging. In this paper, we propose S\"{o}ze, a lightweight decentralized weighted bandwidth allocation system that leverages simple network telemetry features of commodity Ethernet switches. Given the flow weights, S\"{o}ze can effectively use the telemetry information to compute and enforce the weighted bandwidth allocations without per-flow, topology, or routing knowledge. We demonstrate the effectiveness of S\"{o}ze through simulations and testbed experiments, improving TPC-H jobs completion time by up to $0.59\times$ and $0.79\times$ on average. Show Chinese abstract

Abstract: 带权带宽分配是一种功能强大的抽象概念，在现代数据中心网络中有广泛的应用场景。然而，在大规模云环境中实现高度敏捷且精确的带权带宽分配从根本上具有挑战性。本文提出了一种轻量级去中心化的带权带宽分配系统 Söze，它利用商用以太网交换机的简单网络遥测功能。给定流权重后，Söze 可以有效利用遥测信息来计算和强制执行带权带宽分配，而无需了解每条流、拓扑结构或路由信息。我们通过仿真和测试平台实验验证了 Söze 的有效性，提升了 TPC-H 作业完成时间最多可达$0.59\times$和平均$0.79\times$。