Fahad R. Dogar

Decentralized task-aware scheduling for data center networks

By: 
Fahad R. Dogar, Thomas Karagiannis, Hitesh Ballani, Antony Rowstron
Appears in: 
CCR August 2014

Many data center applications perform rich and complex tasks (e.g., executing a search query or generating a user’s news-feed). From a network perspective, these tasks typically comprise multiple flows, which traverse different parts of the network at potentially different times. Most network resource allocation schemes, however, treat all these flows in isolation – rather than as part of a task – and therefore only optimize flow-level metrics.

Friends, not foes: synthesizing existing transport strategies for data center networks

By: 
Ali Munir, Ghufran Baig, Syed M. Irteza, Ihsan A. Qazi, Alex X. Liu, Fahad R. Dogar
Appears in: 
CCR August 2014

Many data center transports have been proposed in recent times (e.g., DCTCP, PDQ, pFabric, etc). Contrary to the common perception that they are competitors (i.e., protocol A vs. protocol B), we claim that the underlying strategies used in these protocols are, in fact, complementary. Based on this insight, we design PASE, a transport framework that synthesizes existing transport strategies, namely, self-adjusting endpoints (used in TCP style protocols), innetwork prioritization (used in pFabric), and arbitration (used in PDQ).

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