ICON: Incast Congestion Control using Packet Pacing in Datacenter Networks

Rezaei, Hamed; Chaudhry, Muhammad Usama; Almasi, Hamidreza; Vamanan, Balajee

doi:10.1109/comsnets.2019.8711175

Cited by 7 publications

(3 citation statements)

References 21 publications

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“…Preset an ideal target threshold K i for the queue length to maintain an appropriate end-to-end queue length. In short, the threshold K t will be updated as Equation (5). The L QV in Equation (4) indicates the average queue length, that is:…”

Section: Dynamic Ecn Marking Threshold Settingmentioning

confidence: 99%

“…The query cannot complete until responses are received from all servers. However, it is well known that foreground applications generate mostly short flows (for example, 1 KB to 10 KB) [2,3], while background applications generate mostly long flows (for example, 1 MB to 100 MB), which are sensitive to network throughput [4,5]. In other words, once TCP incast causes data block loss, the transmission of short flows cannot meet the delay requirement, and the throughput of long flows will be seriously affected as the query cannot be completed.…”

Section: Introductionmentioning

confidence: 99%

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PFDCT: An Enhanced Transport Layer Protocol for Precise Flow Control in Data Centers

Wang

et al. 2023

Electronics

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This paper proposes an enhanced transport layer protocol for precise flow control in data centers, referred to as PFDCT, combining explicit rate control (priority scheduling) and implicit rate control (marking algorithm with dynamic threshold) innovatively, while satisfying the transmission requirements of each data flow. It enables multiple data flows to share the bandwidth fairly, which is rarely achieved by previous data transmission protocols. Our design stems from the observation that different packets in a data center network need to be processed differentially and that the accuracy of the feedback of the indication information to the link state will directly affect the effectiveness of the congestion control mechanism. Our tests show that PFDCT has lower network jitter, better fairness, and significant performance gains over existing proposals (DCTCP, ICTCP, and L2DCT) in terms of Flow Completion Time (FCT) and throughput on average. Furthermore, we discussed the impact of the marking algorithm with dynamic thresholds on the performance of PFDCT, and the results of the experiments show that the addition of the marking algorithm will further improve the performance of PFDCT in terms of packet loss rate, latency, and FCT.

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Section: Dynamic Ecn Marking Threshold Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PFDCT: An Enhanced Transport Layer Protocol for Precise Flow Control in Data Centers

Wang

et al. 2023

Electronics

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show abstract

“…Packet pacing is also proposed as another Incast solution. Rezaei et al [229] proposed ICON as an Incast solution using fine grained control over sending rate by pacing traffic in data center Networks.…”

Section: ) Related Workmentioning

confidence: 99%