NDLI: Guarantee of service expectation level and fairness by precise queue weight allocation in AF PHB

Content Provider	IEEE Xplore Digital Library
Author	Sangkil Jung Sangjin Hong
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Stony Brook Univ., NY (Sangkil Jung; Sangjin Hong)
Abstract	Assured forwarding per-hop behavior (AF PHB) is a forwarding scheme for providing QoS in DiffServ networks. It defines four classes and three drop precedence, where buffer space and bandwidth are defined as forwarding resources for each AF class (J. Heinanen et al., 1999). RIO (D.D. Clark and W. Fang, 1998) could be used as drop policy in a DiffServ router. AF PHB could be implemented by WRR, WFQ, CBQ, etc. When network managers provide AF PHB using the scheduling mechanisms, they want to guarantee accurate achievement of service expectation level, which results from precise queue weight allocation to each AF class with respect to forwarding resources, i.e., buffer space and bandwidth. In order to provide a guideline for the precise queue weight allocation, this paper proposes a simple analytical model for AF PHB designed on RIO and M/M/1 queue, and uses this model to obtain queue weight equation (QWE), which performs fine calculation of queue weight for AF classes. Average buffer space and bandwidth allocated for each AF class are used in derivation of QWE. The model verification is performed by simulation in which we use WRR for simplicity. Simulation results show that the QWE supports an accurate allocation of the forwarding resources, and, as a result, makes four AF classes achieve fairness as well as service expectation levels
Starting Page	223
Ending Page	227
File Size	143335
Page Count	5
File Format	PDF
ISBN	1424402697
ISSN	15253511
e-ISBN	1424402700
DOI	10.1109/WCNC.2006.1683468
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Queueing analysis Resource management Quality of service Diffserv networks Mobile computing Laboratories Computer networks Design engineering Guidelines
Content Type	Text
Resource Type	Article

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