An experimental study of VBR video over various ATM switch architectures
- Sandia National Labs., Livermore, CA (United States)
- Univ. of Minnesota, Minneapolis, MN (United States)
One of the most important components of an Asynchronous Transfer Mode (ATM) network is the switch. Switch design is not a part of the ATM standards so vendors use a wide variety of techniques to build their switches. In this paper, the authors present experimental results of switching and multiplexing real-time Variable Bit Rate (VBR) video traffic (JPEG, MPEG-1, and MPEG-2) through two different ATM switch architectures. Real-time VBR traffic, such as digital video, is particularly interesting due to its high demands in terms of bandwidth, real-time delivery and processing requirements. The experiments show that the fastest switches, i.e., lowest latencies, do not necessarily perform better when transmitting VBR video. The impact of the high speed network components; characteristics, such as switch fabric architecture, buffering strategies, and higher layer transport protocols (i.e., UDP, TCP/IP), are illustrated through the experimental results.
- Research Organization:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 304163
- Report Number(s):
- SAND-97-8561C; CONF-9704202-; ON: DE99001419; TRN: AHC29904%%239
- Resource Relation:
- Conference: IFIP 1997 conference on high performance networking, White Plains, NY (United States), 28 Apr - 2 May 1997; Other Information: PBD: [1997]
- Country of Publication:
- United States
- Language:
- English
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