A Congestion Control Framework Based on In-Network Resource Pooling

Rene, S. and Ascigil, O. and Psaras, I. and Pavlou, G. (2022) A Congestion Control Framework Based on In-Network Resource Pooling. IEEE/ACM Transactions on Networking, 30 (2). pp. 683-697. ISSN 1063-6692

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Congestion control has traditionally relied on monitoring packet-level performance (e.g. latency, loss) through feedback signals propagating end-to-end together with various queue management practices (e.g. carefully setting various parameters, such as router buffer thresholds) in order to regulate traffic flow. Due to its end-to-end nature, this approach is known to transfer data according to the path's slowest link, requiring several RTTs to transmit even a few tens of KB during slow start. In this paper, we take a radically different approach to control congestion, which obviates end-to-end performance monitoring and careful setting of network parameters. The resulting In-Network Resource Pooling Protocol (INRPP) extends the resource pooling principle to exploit in-network resources such as router storage and unused bandwidth along alternative sub-paths. In INRPP, content caches or large (possibly bloated) router buffers are used as a place of temporary custody for incoming data packets in a store and forward manner. Data senders push data in the network and when it hits the bottleneck link, in-network caches at every hop store data in excess of the link capacity; nodes progressively move/send data (from one cache to the next) towards the destination. At the same time alternative sub-paths are exploited to move data faster towards the destination. We demonstrate through extensive simulations that INRPP is TCP friendly, and improves flow completion time and fairness by as much as 50% compared to RCP, MPTCP and TCP, under realistic network conditions.

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Journal Article
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IEEE/ACM Transactions on Networking
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Uncontrolled Keywords:
?? bandwidthmonitoringmultipath.network topologyprotocolsresource poolingrouting protocolsserverstopologytransport protocoldigital storagetraffic congestiontransmission control protocolend to endin networksmultipathmultipath.network resourceresource poolingr ??
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14 Jan 2022 12:23
Last Modified:
10 Jan 2024 00:32