A short paper on limiting the number of concurrent senders as a solution to TCP incast. The paper gives the optimal performance as a closed form solution, which the transfer time is in terms of just-fit, no-loss use of buffer at the bottleneck. To achieve this, we can send no more than $N$ flows at a time and more flows are proceeded only after these $N$ flows completed. Therefore, for a high fan-in transfer with $n$ flows, the $i$-th flow shall be sent in batch $\mod(i-1, \textrm{ceil}(n/N))$.

## Bibliographic data

@inproceedings{
title = "An Application-Level Solution for the TCP-incast Problem in Data Center Networks",
author = "Maxim Podlesny and Carey Williamson",
booktitle = "Proc. 19th IWQoS",
pages = "1--3",
month = "Jun",
year = "2011",
}