Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

FloSIS: A super-fast network flow capture system for efficient flow retrieval

01.04.2016

FloSIS is a multi-10Gbps network flow capture system that supports real-time flow indexing for fast flow retrieval and flow-content deduplication for enhanced storage efficiency.

Network packet capture performs essential functions in modern network management such as attack analysis, network troubleshooting, and performance debugging. As the network edge bandwidth currently exceeds 10 Gbps, the demand for scalable packet capture and retrieval is rapidly increasing. However, existing software-based packet capture systems neither provide high performance nor support flow-level indexing for fast query response. This would either prevent important packets from being stored or make it too slow to retrieve relevant flows.


FloSIS: A super-fast network flow capture system for efficient flow retrieval.

Copyright : KAIST

A research team led by Professor KyoungSoo Park and Professor Yung Yi of the School of Electrical Engineering at Korea Advanced Institute of Science and Technology (KAIST) have recently presented FloSIS, a highly scalable software-based network traffic capture system that supports efficient flow-level indexing for fast query response.

FloSIS is characterized by three key advantages. First, it achieves high-performance packet capture and disk writing by exercising full parallelism in computing resources such as network cards, CPU cores, memory, and hard disks. It adopts the PacketShader I/O Engine (PSIO) for scalable packet capture and performs parallel disk writes for high-throughput flow dumping. Towards high zero-drop performance, it strives to minimize the fluctuation of packet processing latency.

Second, FloSIS generates two-stage flow-level indexes in real time to reduce the query response time. The indexing utilizes Bloom filters and sorted arrays to quickly reduce the search space of a query. Also, it is designed to consume only a small amount of memory while allowing flexible queries with wildcards, ranges of connection tuples, and flow arrival times.

Third, FloSIS supports flow-level content deduplication in real time for storage savings. Even with deduplication, the system still records the packet-level arrival time and headers to provide the exact timing and size information. For an HTTP connection, FloSIS parses the HTTP response header and body to maximize the hit rate of deduplication for HTTP objects.

These design choices bring enormous performance benefits. On a server machine with dual octa-core CPUs, four 10Gbps network interfaces, and 24 SATA disks, FloSIS achieves up to 30 Gbps for packet capture and disk writing without a single packet drop. Its indexes take up only 0.25% of the stored content while avoiding slow linear disk search and redundant disk access. On a machine with 24 hard disks of 3 TB, this translates into 180 GB for 72 TB total disk space, which could be managed entirely in memory or stored into solid state disks for fast random access. Finally, FloSIS deduplicates 34.5% of the storage space for 67 GB of a real traffic trace only with 256 MB of extra memory consumption for a deduplication table. In terms of performance, it achieves about 15 Gbps zero-drop throughput with real-time flow deduplication.

Source:

This work is presented at 2015 USENIX Annual Technical Conference (ATC) on July 10 2015 in Santa Clara, California (link below).

Associated links

Lan Yoon | Research SEA
Further information:
http://www.researchsea.com

More articles from Information Technology:

nachricht Supercomputing the emergence of material behavior
18.05.2018 | University of Texas at Austin, Texas Advanced Computing Center

nachricht Keeping a Close Eye on Ice Loss
18.05.2018 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

Im Focus: Computer-Designed Customized Regenerative Heart Valves

Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.

Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...

Im Focus: Light-induced superconductivity under high pressure

A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.

Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Supersonic waves may help electronics beat the heat

18.05.2018 | Power and Electrical Engineering

Keeping a Close Eye on Ice Loss

18.05.2018 | Information Technology

CrowdWater: An App for Flood Research

18.05.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>