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Architecture of Cell Switch Router and Prototype System Implementation
Shigeo MATSUZAWA Ken'ichi NAGAMI Akiyoshi MOGI Tatsuya JINMEI Hiroshi ESAKI Yasuhiro KATSUBE
IEICE TRANSACTIONS on Communications
Publication Date: 1997/08/25
Print ISSN: 0916-8516
Type of Manuscript: Category: Communication Networks and Services
ATM, CSR, cut-thru, hop-by-hop, IP, router, prototype,
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Overview of Cell Switch Router (CSR) and the CSR prototype system are described. CSR can simultaneously support both connection oriented IP flows and connectionless IP flows. CSR contains cell switch fabric and IP packet switch fabric to achieve high throughput IP forwarding. IP packets are forwarded either through a cut-thru packet transmission, in which packet are forwarded without reassembling IP packet nor IP header processing, or through a conventional hop-by-hop IP packet forwarding. This paper describes and proposes the mechanism to forward the connectionless IP packet flows at the CSR. A CSR prototype system has been developed. The CSR prototype system uses PVC connections to transfer the IP packets. With the CSR prototype system, we can make sure that CSR system can achieve a high throughput, i.e., 2.4 Gbps aggregated throughput. For end-to-end TCP/IP packet transmission, more than 90 Mbps can be achieved and realtime video transmission (30 Mbps video) can be achieved.