NDLI: SDN enhanced tomography for performance profiling in cloud network

Content Provider	IET Digital Library
Author	Zhang, Pengfei Zhao, Yusu Wang, Yongkun Jin, Yaohui
Abstract	For cloud network performance profiling, network tomography is useful for deducing the network performance based on end-to-end measurement. However, most tomography problems are under-constrained, thus requires additional assumptions in order to be solvable, which sacrifices the accuracy. On the other hand, packet traces from switches could provide accurate and direct performance measurement, but it is hard to cover the whole network with packet trace analysis per link and flow. In this study, the authors propose ScoutFlow, a method combining software-defined networking (SDN) flow measurement and end-to-end performance tomography, to achieve accurate performance profiling for cloud network while keeping low monitoring overhead. In ScoutFlow, they mirror the flow packet trace using SDN, to solve the under-constrained problem in tomography. ScoutFlow only requires a small amount of flow mirror traces for the measurement, which leads to much lower overhead of flow mirroring than that of traditional packet-level monitoring methods. The proposed methodology is evaluated with simulation and testbed experiments, which demonstrates ScoutFlow's scalability and accuracy.
Starting Page	593
Ending Page	603
Page Count	11
ISSN	17518628
Volume Number	11
e-ISSN	17518636
Issue Number	Issue 4, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/11/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.1171
Journal	IET Communications
Publisher Date	2017-03-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cloud Computing Cloud Network Performance Profiling Computer Communication Computer Network And Technique Computer Network Performance Evaluation Computerised Instrumentation Computerised Tomography Direct Performance Measurement End-to-end Measurement End-to-end Performance Tomography Flow Packet Trace Network Performance Network Tomography Packet Trace Analysis Packet-level Monitoring Method ScoutFlow SDN Enhanced Tomography SDN Flow Measurement Software Defined Networking Software-defined Networking Flow Measurement Underconstrained Problem
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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