BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Chatty Tenants and the Cloud Network Sharing Problem - Hitesh Ball
 ani (MSR Cambridge)
DTSTART:20130501T120000Z
DTEND:20130501T130000Z
UID:TALK43213@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:The shared nature of the network in today's public cloud datac
 enters leads to variable and unpredictable application performance. While 
 past research has focussed on intra-tenant communication across the cloud 
 network\, we note that the emerging ecosystem of cloud applications leads 
 to significant inter-tenant communication. This poses new challenges for c
 loud network sharing.\n \nIn this talk I will describe how a cloud network
  that carries both intra- and inter-tenant traffic should be shared. The k
 ey idea is that network allocations should be dictated by the least-paying
  of communication partners. This\, when combined with careful VM placement
 \, achieves the complementary goals of providing tenants with minimum band
 width guarantees while bounding their maximum network impact. To illustrat
 e these ideas\, we have designed a prototype system called Hadrian. Result
 s from our testbed deployment show that minimum bandwidth guarantees\, apa
 rt from helping tenants achieve predictable performance\, also improve ove
 rall datacenter throughput. Thus\, Hadrian benefits both tenants and the c
 loud provider.\n
LOCATION:LT2\, Computer Laboratory\, William Gates Builiding
END:VEVENT
END:VCALENDAR