Tandem-crosspoint ATM switch architecture and its cost-effective expansion

Eiji Oki, Naoaki Yamanaka, Seisho Yasukawa

研究成果: Paper査読

2 被引用数 (Scopus)

抄録

This paper proposes a high-speed input and output buffering ATM switch, named the Tandem-Crosspoint (TDXP) switch. The TDXP switch consists of multiple crossbar switch planes. These switch planes are connected in tandem at all crosspoints. The TDXP switch architecture offers several advantages. First, the TDXP switch does not increase the internal line speed in eliminating Head-Of-Line (HOL) blocking. Second, since the TDXP switch employs a simple cell reading algorithm at the input buffer in order to retain the cell sequence, the TDXP switch does not require the cell sequences to be rebuilt at output buffers using time stamps, as is required by a parallel switch. These merits make it easy to implement a high-speed ATM switch. Numerical results show that the TDXP switch can effectively eliminate HOL blocking and achieve high throughput. In addition, we discuss how TDXP switches can be combined to form larger switches in a cost-effective way. We clarify the relative advantages of the crossbar switch configuration and the three-stage Clos switch configuration in achieving a specific throughput. Because the three-stage Clos switch configuration is not strictly non-blocking, we introduce a nearly non-blocking condition and evaluate switch throughput under the condition. The evaluation shows that crossbar switch configuration becomes more cost effective as the throughput of individual switch LSIs, which depends on device technologies, increases.

本文言語English
ページ45-51
ページ数7
出版ステータスPublished - 1997 1月 1
外部発表はい
イベントProceedings of the 1997 2nd IEEE International Workshop on Broadband Switching Systems, BSS'97 - Taipei, China
継続期間: 1997 12月 21997 12月 4

Other

OtherProceedings of the 1997 2nd IEEE International Workshop on Broadband Switching Systems, BSS'97
CityTaipei, China
Period97/12/297/12/4

ASJC Scopus subject areas

  • 工学(全般)

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