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APIs for Flow Control and Their Applications

Arata KOIKE

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Summary :

Reliable and scalable network technologies are desired to meet the emerging demand for multimedia communication. Asynchronous Transfer Mode (ATM) is a key technology and its importance is widely recognized. An ATM layer service category, Available Bit Rate (ABR), was specified at the ATM Forum in 1996. ABR is intended to meet the requirements of non-real-time applications that assume best effort data transportation. It has distinctive features compared to other ATM layer categories. We proposed Application Program Interfaces (APIs) for ABR that allow applications to use ABR capability directly. The API is now a part of the ATM Forum specification. In this paper, we describe the background and necessity of ABR APIs and explain the primitives for them in detail. In addition to having common API primitives for requesting bandwidth or delay requirements during connection setup, ABR APIs can exchange feedback information during communication. Applications for such APIs are addressed and their effectiveness is shown by demonstrating simulation for the TCP-ABR interworking for a backbone ABR network. Finally, a migration scenario for utilizing such APIs is proposed.

Publication
IEICE TRANSACTIONS on Communications Vol.E84-B No.12 pp.3173-3180
Publication Date
2001/12/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Network Software)
Category
Mobile Service and Technologies

Authors

Keyword

API,  flow control,  ABR,  U-plane