Dr. Multicast: Rx for Data Center Communication Scalability

Ymir Vigfusson, Hussam Abu-Libdeh, Mahesh Balakrishnan, Ken Birman, Robert Burgess, Gregory Chockler, Haoyuan Li, Yoav Tock

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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IP Multicast (IPMC) in data centers becomes disruptive when the technology is used by a large number of groups, a capability desired by event notification systems. We trace the problem to root causes, and introduce Dr. Multicast (MCMD), a system that eliminates the issue by mapping IPMC operations to a combination of point-to-point unicast and traditional IPMC transmissions guaranteed to be safe. MCMD optimizes the use of IPMC addresses within a data center by merging similar multicast groups in a principled fashion, while simultaneously respecting hardware limits expressed through administrator-controlled policies. The system is fully transparent, making it backward-compatible with commodity hardware and software found in modern data centers. Experimental evaluation shows that MCMD allows a large number of IPMC groups to be used without disruption, restoring a powerful group communication primitive to its traditional role.
Original languageEnglish
Title of host publicationEuroSys '10 Proceedings of the 5th European conference on Computer systems
Place of PublicationParis, France
Number of pages14
ISBN (Print)978-1-60558-577-2
Publication statusPublished - Apr 2010
Event5th European conference on Computer systems (EuroSys '10) - Paris, France
Duration: 13 Apr 201016 Apr 2010


Conference5th European conference on Computer systems (EuroSys '10)


  • IP Multicast
  • Multicast
  • Data Centers

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