Absorbing Microbursts Without Headroom for Data Center Networks

Gyuyeong Kim, Wonjun Lee

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


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
Issue number5
Publication statusPublished - 2019 May


  • Data center networks
  • ECN
  • microbursts

ASJC Scopus subject areas

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


Dive into the research topics of 'Absorbing Microbursts Without Headroom for Data Center Networks'. Together they form a unique fingerprint.

Cite this