NDLI: Fault-Tolerant Overlay Protocol Network

Content Provider	IEEE Xplore Digital Library
Author	Shelly, N.J. Jensen, N.A. Baird, L.C. Moore, J.A.
Copyright Year	2006
Description	Author affiliation: US Air Force Acad., Colorado Springs, CO (Shelly, N.J.; Jensen, N.A.; Baird, L.C.; Moore, J.A.)
Abstract	Voice over Internet Protocol (VoIP) and other time critical communications require a level of availability much higher than the typical transport network supporting traditional data communications. These critical command and control channels must continue to operate and remain available in the presence of an attack or other network disruption. Even disruptions of short duration can severely damage, degrade, or drop a VoIP connection. Routing protocols in use today can dynamically adjust for a changing network topology. However, they generally cannot converge quickly enough to continue an existing voice connection. As packet switching technologies continue to erode traditional circuit switching applications, some methodology or protocol must be developed that can support these traditional requirements over a packet-based infrastructure. We propose the use of a modified overlay tunneling network and associated routing protocols called the fault tolerant overlay protocol (FTOP) network. This network is entirely logical; the supporting routing protocol may be greatly simplified due to the overlays's ability to appear fully connected. Therefore, ensuring confidentiality and availability are much simpler using traditional cryptographic isolation and VPN technologies. Empirical results show for substrate networks, convergence time may be as high as six to ten minutes. However, the FTOP overlay network has been shown to converge in a fraction of a second, yielding an observed two order of magnitude convergence time improvement. This unique ability enhances availability of critical network services allowing operation in the face of substrate network disruption caused by malicious attack or other failure
Starting Page	369
Ending Page	375
File Size	287884
Page Count	7
File Format	PDF
ISBN	1424401305
DOI	10.1109/IAW.2006.1652118
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault tolerance Routing protocols Packet switching Internet telephony Data communication Command and control systems Degradation Network topology Switching circuits Tunneling
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