Sorting reordered packets with interrupt coalescing

Journal Article · Mon Jun 01 00:00:00 EDT 2009 · Comput.Net.

DOI:https://doi.org/10.1016/j.comnet.2009.05.012· OSTI ID:3019857

Wu, Wenji ^[1]; Demar, Phil ^[1]; Crawford, Matt ^[1]

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1. Fermilab

TCP performs poorly in networks with serious packet reordering. Processing reordered packets in the TCP layer is costly and inefficient, involving interaction of the sender and receiver. Motivated by the interrupt coalescing mechanism that delivers packets upward for protocol processing in blocks, we propose a new strategy, Sorting Reordered Packets with Interrupt Coalescing (SRPIC), to reduce packet reordering in the receiver. SRPIC works in the network device driver/ it makes use of the interrupt coalescing mechanism to sort the reordered packets belonging to the same TCP stream in a block of packets before delivering them upward/ each sorted block is internally ordered. Experiments have proven the effectiveness of SRPIC against forward-path reordering.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 3019857
• Report Number(s): FERMILAB-PUB-09-286-CD; oai:inspirehep.net:826575; arXiv:1008.4931
• Journal Information: Comput.Net., Journal Name: Comput.Net. Vol. 53
• Country of Publication: United States
• Language: English