NDLI: A proxy server structure and its cache consistency mechanism at the network bottleneck

Content Provider	IEEE Xplore Digital Library
Author	Joo-Yong Kim Kyoung-Woon Cho Kern Koh
Copyright Year	1999
Description	Author affiliation: Dept. of Comput. Sci., Seoul Nat. Univ., South Korea (Joo-Yong Kim)
Abstract	The response time, bandwidth usage and server load are three representative performance metrics that are used for proxy cache consistency mechanisms. However, the primary metric affecting the overall performance can be different depending on the situation. At a network bottleneck, such as the inter-continental backbone, the network bandwidth is limited. Also, the response time is a basic performance metric used for the proxy cache, and an unsatisfactory response time can be a reason why clients hesitate to use the proxy cache, which may potentially increase the network traffic. Hence, we should give higher priority to the response time and the bandwidth usage at the bottleneck, as compared to other metrics. In this paper, we suggest a proxy server structure at the network bottleneck which improves the response time and even results in a small amount of network traffic reduction at the bottleneck. Its cache consistency mechanism is based on periodic polling performed at the polling server located beyond the bottleneck. Our approach may increase the network bandwidth beyond the bottleneck and the load on the originating Web servers. However, the faster response time and the reduced network traffic at the bottleneck can compensate for them.
Starting Page	278
Ending Page	283
File Size	564244
Page Count	6
File Format	PDF
ISBN	0769503683
ISSN	07303157
DOI	10.1109/CMPSAC.1999.812716
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network servers Delay Bandwidth Web server Measurement Spine Telecommunication traffic Computer science World Wide Web IP networks
Content Type	Text
Resource Type	Article
Subject	Computer Science Applications Software

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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