Enabling Service Queue Isolation in Multi-Tenant Data Centers

Gyuyeong Kim, Wonjun Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


To isolate service queues in data centers, recent solutions assume Explicit Congestion Notification (ECN)-enabled end-hosts. However, this assumption is not valid in multi-tenant environments where tenants own the network stack. This letter presents BarberQ, a multi-queue management scheme that isolates service queues without dependency on transport protocols. At the heart of BarberQ lies dynamic buffer sharing through packet eviction. Our benchmark results demonstrate that BarberQ not only achieves minimum guarantees and work conservation, but also provides low latency.

Original languageEnglish
Article number8826238
Pages (from-to)1949-1952
Number of pages4
JournalIEEE Communications Letters
Issue number11
Publication statusPublished - 2019 Nov


  • Data center networks
  • clouds
  • multi-tenancy

ASJC Scopus subject areas

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


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