NDLI: CONTRACT: Incorporating Coordination into the IP Network Control Plane

Content Provider	IEEE Xplore Digital Library
Author	Zheng Cai Dinu, F. Jie Zheng Cox, A.L. Ng, T.S.E.
Copyright Year	2010
Abstract	This paper presents the CONTRACT framework to address a fundamental deficiency of the IP network control plane, namely the lack of coordination between an IGP and other control functions involved in achieving a high level objective. For example, an IGP’s default automatic reaction to a network failure may result in an SLA violation, even if the IGP link weights have been carefully chosen. This is because an IGP blindly routes traffic along the shortest paths based on link weights, and it is completely oblivious to the interactions between SLA compliance, load balancing and traffic policing objectives in a network. The CONTRACT framework makes it possible to coordinate these objectives. Under this framework, routers continue to operate autonomously, but they also coordinate their actions with a centralized network controller, which evaluates the impact of routing changes, decides whether the changes are SLA compliant, and performs load rebalancing and/or packet filter reconfiguration as necessary. The key contribution of CONTRACT is a set of coordination algorithms. We show that CONTRACT can effectively coordinate the actions of routing, load balancing and traffic policing to improve a network’s SLA compliance.
Starting Page	189
Ending Page	198
File Size	343456
Page Count	10
File Format	PDF
ISBN	9781424472611
ISSN	10636927
e-ISBN	9781424472628
DOI	10.1109/ICDCS.2010.77
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-21
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Contracts IP networks Automatic control Communication system traffic control Load management Routing Centralized control Performance evaluation Filters Telecommunication traffic SLA compliance network coordination traffic control coordination algorithms
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture 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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