23. Traffic Characteristics and Performance Evaluation of Peer-to-Peer Systems

2005 ◽  
pp. 383-397 ◽  
Author(s):  
Kurt Tutschku ◽  
Phuoc Tran-Gia
Keyword(s):  
Performance Evaluation ◽  
Peer To Peer ◽  
Traffic Characteristics ◽  
Peer To Peer Systems ◽  
And Performance

IDENTIFICATION AND MANAGEMENT OF SESSIONS GENERATED BY INSTANT MESSAGING AND PEER-TO-PEER SYSTEMS

2008 ◽  
Vol 17 (01) ◽  
pp. 1-51 ◽  
Author(s):  
ZHONGQIANG CHEN ◽  
ALEX DELIS ◽  
PETER WEI
Keyword(s):  
Data Streams ◽  
Instant Messaging ◽  
Forensic Analysis ◽  
Peer To Peer ◽  
Detection Accuracy ◽  
Traffic Classification ◽  
Shared Resources ◽  
Peer To Peer Systems ◽  
Interval Trees ◽  
And Performance

Sessions generated by Instant Messaging and Peer-to-Peer systems (IM/P2Ps) not only consume considerable bandwidth and computing resources but also dramatically change the characteristics of data flows affecting both the operation and performance of networks. Most IM/P2Ps have known security loopholes and vulnerabilities making them an ideal platform for the dissemination of viruses, worms, and other malware. The lack of access control and weak authentication on shared resources further exacerbates the situation. Should IM/P2Ps be deployed in production environments, performance of conventional applications may significantly deteriorate and enterprise data may be contaminated. It is therefore imperative to identify, monitor and finally manage IM/P2P traffic. Unfortunately, this task cannot be easily attained as IM/P2Ps resort to advanced techniques to hide their traces including multiple channels to deliver services, port hopping, message encapsulation and encryption. In this paper, we propose an extensible framework that not only helps to identify and classify IM/P2P-generated sessions in real time but also assists in the manipulation of such traffic. Consisting of four modules namely, session manager, traffic assembler, IM/P2P dissector, and traffic arbitrator, our proposed framework uses multiple techniques to improve its traffic classification accuracy and performance. Through fine-tuned splay and interval trees that help organize IM/P2P sessions and packets in data streams, we accomplish stateful inspection, traffic re-assembly, data stream correlation, and application layer analysis that combined will boost the framework's identification precision. More importantly, we introduce IM/P2Ps "plug-and-play" protocol analyzers that inspect data streams according to their syntax and semantics; these analyzers render our framework easily extensible. Identified IM/P2P sessions can be shaped, blocked, or disconnected, and corresponding traffic can be stored for forensic analysis and threat evaluation. Experiments with our prototype show high IM/P2Ps detection accuracy rates under diverse settings and excellent overall performance in both controlled and real-world environments.

An Architecture and Performance Evaluation of Blockchain-based Peer-to-Peer Energy Trading

2021 ◽  
pp. 1-1
Author(s):  
Juhar Abdella ◽  
Zahir Tari ◽  
Adnan Anwar ◽  
Abdun Mahmood ◽  
Fengling Han
Keyword(s):  
Performance Evaluation ◽  
Peer To Peer ◽  
Energy Trading ◽  
And Performance

The ShareGrid Peer-to-Peer Desktop Grid: Infrastructure, Applications, and Performance Evaluation

2010 ◽  
Vol 8 (4) ◽  
pp. 543-570 ◽  
Author(s):  
Cosimo Anglano ◽  
Massimo Canonico ◽  
Marco Guazzone
Keyword(s):  
Performance Evaluation ◽  
Peer To Peer ◽  
Grid Infrastructure ◽  
Desktop Grid ◽  
And Performance

Peer-to-Peer Platforms for High-Quality Web Services

2010 ◽  
pp. 158-177
Author(s):  
Ying Qiao ◽  
Shah Asaduzzaman ◽  
Gregor V. Bochmann
Keyword(s):  
Load Balancing ◽  
Response Time ◽  
Hash Table ◽  
Peer To Peer ◽  
Distributed Hash Table ◽  
Service Availability ◽  
Peer To Peer Systems ◽  
Decentralized Load Balancing ◽  
And Performance ◽  
Resource Organization

This chapter presents a clustered peer-to-peer system as a resource organization structure for web-service hosting platforms. Where service quality, such as response time and service availability, are provided with assurance. The peer-to-peer organization allows integration of autonomous resources into a single platform in a scalable manner. In clustered peer-to-peer systems, nodes are organized into clusters based on some proximity metric, and a distributed hash table overlay is created among the clusters. This organization enables lightweight techniques for load balancing among different clusters, which is found to be essential for providing response time guarantees. Service availability is provided by replicating a service instance in multiple nodes in a cluster. A decentralized load balancing technique called diffusive load balancing is presented in the context of clustered peer-to-peer systems and evaluated for effectiveness and performance.

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