NDLI: Core-manager based scalable multicast routing

Content Provider	IEEE Xplore Digital Library
Author	Changdong Liu Lee, M.J. Saadawi, T.N.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. Eng., City Univ. of New York, NY, USA (Changdong Liu)
Abstract	With the growing interests in distributed applications, efficient and scalable multicast routing is of great concern. Source-based tree multicast routing protocols, however, become very inefficient when used with large number of sources over large scale internetworks. Shared-tree based multicast routing protocols like PIM and CBT being developed by the IDMR working group of the IETF, trade efficiency of multicast delivery trees with scalability, but there are some issues open to further study. The work presented in this paper, the core-manager based multicast routing (CMMR) architecture, adopts shared-tree based techniques to achieve good scalability. It worked out an innovative approach to issues like core selection and multicast delivery tree management. The basic idea behind CMMR is that the core-manager (CM) keeps tracking cores of each multicast delivery tree in order to maintain a brief image of the tree. Consequently, new members will almost always be directed to a nearby core so that tree cost is well confined. However, not every new member has to actually consult the CM thanks to a self-growing scheme, maintaining control overhead low. Simulations show that the CMMR outperforms other existing shared-tree based multicast routing protocols like PIM, and can do as well as expensive near-optimal Steiner tree heuristics when average costs of multicast delivery trees are compared. Further improving on scalability is sought by using a hierarchical architecture, which requires the multicast addresses be administratively scoped in accordance with the hierarchy. Management of candidate cores are restricted within individual hierarchical regions. In addition, the CMMR scheme is recursive, meaning that all routers run the same algorithm regardless of their hierarchical levels.
Starting Page	1202
Ending Page	1207
File Size	704520
Page Count	6
File Format	PDF
ISBN	0780347889
DOI	10.1109/ICC.1998.685199
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multicast protocols Routing protocols Scalability Internet Costs Multicast algorithms Laboratories Cities and towns Educational institutions Large-scale systems
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

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