Prototyping an ATM adaptation layer in a multimedia terminal
作者:
G. J. Armitage,
K. M. Adams,
期刊:
International Journal of Digital&Analog Communication Systems
(WILEY Available online 1993)
卷期:
Volume 6,
issue 1
页码: 3-14
ISSN:1047-9627
年代: 1993
DOI:10.1002/dac.4510060103
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: ATM;Adaptation layer;BISDN;STREAMS;Workstation;Ethernet
数据来源: WILEY
摘要:
AbstractThis paper describes the implementation of a prototype ATM adaptation layer (AAL) within the kernels of two machines running Sun Operating System 4.1.1. The implementation is achieved by using the STREAMS paradigm and an Ethernet link between the two machines as a surrogate optical fibre link. The flexibility of the STREAMS facility for building layered protocols, and the real‐time performance limitations of the STREAMS scheduling system are identified. STREAMS is shown to be no less susceptible to naïve buffer utilization than earlier paradigms. It is necessary to minimize message passing and copying of data to achieve high throughput. This study has clarified several key issues in the functional design of AA
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