In-Network Applications: Beyond Single Switch Pipelines

Khooi, Xin Zhe; Csikor, Levente; Li, Jialin; Divakaran, Dinil Mon

doi:10.1109/netsoft51509.2021.9492665

Cited by 5 publications

(1 citation statement)

References 28 publications

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“…Awareness of multi-pipe switches. Khooi et al [45] first raised awareness about designing multi-pipe-aware systems. The authors state that "in-network traffic monitoring applications operate as intended on multi-pipeline switches".…”

Section: Related Workmentioning

confidence: 99%

Network Monitoring on Multi-Pipe Switches

Chiesa

Verdi

2023

SIGMETRICS Perform. Eval. Rev.

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Programmable switches have been widely used to design network monitoring solutions that operate in the fast data-plane level, e.g., detecting heavy hitters, super-spreaders, computing flow size distributions and their entropy. Existing works assume packets access the same memory region in a switch. However, high-speed ASIC switches deploy multiple packet processing pipes, each equipped with its own independent memory. In this work, we first quantify the accuracy degradation due to splitting a monitoring data structure across multiple pipes (e.g., up to 3000x worse flow-size estimation average error). We then present PipeCache, a system that adapts existing data-plane mechanisms to multi-pipe switches by storing monitoring information for a traffic class into a single pipe. PipeCache stores monitoring information into a cache and piggybacks this information onto existing data packets to the correct pipe. Our implementation shows a 2-20x memory reduction to achieve an accuracy similar to single-pipe deployments.

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Section: Related Workmentioning

confidence: 99%