Absorbing Microbursts Without Headroom for Data Center Networks

Gyuyeong Kim, Wonjun Lee

Research output: Contribution to journalArticle

Abstract

In data center networks, handling microbursts is crucial to user experience because the microburst causes excessive packet losses in shallow buffered switches. Explicit congestion notification (ECN) enables the switch to absorb microbursts by leaving buffer headroom, but has a fundamental trade-off between latency and throughput. In this letter, we propose LossPass, a switch port management scheme that achieves low latency and high throughput simultaneously. LossPass breaks the trade-off of ECN by absorbing microbursts without headroom. Intensive benchmark results demonstrate that LossPass reduces the average and tail latency of small flows while maintaining line-rate throughput.

Original languageEnglish
Article number8672925
Pages (from-to)806-809
Number of pages4
JournalIEEE Communications Letters
Volume23
Issue number5
DOIs
Publication statusPublished - 2019 May 1

Fingerprint

Data Center
Absorbing
Latency
Switch
Switches
Throughput
Congestion
Trade-offs
User Experience
Packet Loss
Packet loss
High Throughput
Buffer
Tail
Benchmark
Line
Demonstrate

Keywords

  • Data center networks
  • ECN
  • microbursts

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Absorbing Microbursts Without Headroom for Data Center Networks. / Kim, Gyuyeong; Lee, Wonjun.

In: IEEE Communications Letters, Vol. 23, No. 5, 8672925, 01.05.2019, p. 806-809.

Research output: Contribution to journalArticle

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