[Nrg-l] NRG: 21st Feb 2006 Tuesday

Vijay Erramilli evijay at cs.bu.edu
Mon Feb 20 12:50:22 EST 2006

Hi All,

Since we will be following Monday's schedule
on Tuesday 21st Feb, we will have Nahur presenting the following paper:

Harnessing TCPs Burstiness using Flowlet Switching

Shan Sinha, Srikanth Kandula, Dina Katabi
3rd ACM SIGCOMM Workshop on Hot Topics in Networks (HotNets), November 

When: 5:00 PM Tuesday, 21st Feb, 2006 
Where: Graduate Lounge, CS Research lab

Hope to see you all there,



TCP's burstiness is usually regarded as harmful, or at best, 
This paper adopts a new perspective and examines whether TCP's burstiness 
is useful for certain applications. It shows that the burstiness can be 
harnessed to make TCP more robust to packet reordering caused by route 
change. We define a flowlet as a burst of packets from the same flow 
followed by an idle interval. We develop a scheme that uses flowlets to 
split traffic across multiple parallel paths. We show that flowlet 
switching is an ideal technique for load balancing traffic across multiple 
paths as it has the accuracy of packet switching, combined with the 
robustness of flow switching to packet reordering. The accuracy, 
simplicity, and low-overhead of flowlet switching makes it a strong 
candidate for replacing the current hash-based schemes used in routers for 
splitting traffic across multiple links. Further, flowlet switching 
accurately splits traffic across various paths even when their desired 
traffic shares vary over time, providing a key component for research in 
the areas of adaptive multipath routing, adaptive multihoming, and traffic 

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