Design, analysis and implementation of packets cross forwarding for interconnected resilient packet rings

Zhizhong Zhang; Fang Cheng; Jiangtao Luo; Shaofeng Qiu; Qijian Mao; Yunlin Zhang

doi:10.1117/12.567932

25 October 2004 Design, analysis and implementation of packets cross forwarding for interconnected resilient packet rings

Zhizhong Zhang, Fang Cheng, Jiangtao Luo, Shaofeng Qiu, Qijian Mao, Yunlin Zhang

Author Affiliations +

Proceedings Volume 5596, Optical Transmission Systems and Equipment for WDM Networking III; (2004) https://doi.org/10.1117/12.567932
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

In IEEE 802.17 draft standard, bridging technique is suggested to connect multiple resilient packet rings (RPRs). However, we demonstrate that bridging technology may not be a feasible solution because too much of resources and overhead would be occupied or needed to transmit packets across multiple RPR sub-networks. To construct interconnected RPRs and thus solve bridging related issues, this paper introduces a new kind of RPR nodes, namely, RPR-X nodes, to interconnect multiple RPR sub-networks. In our solutions, standard RPR frame defined by IEEE 802.17 is used to transmit packets on the local RPR sub-network, the extended RPR frame (i.e., cross frame) is used to transmit the packets across different RPR sub-networks. For RPR-X node, it can identify and process both standard RPR frame and extended RPR frame. While for RPR-S node (standard RPR node), it can only identify and process standard RPR frame. Based on the extended definitions of standard RPR frame, we give a detailed design of MAC layer reference model of RPR-X node, and propose an original packet cross forwarding algorithm, with a view to transmitting the packets across multiple RPR sub-networks, and at the same time to guaranteeing the cross forwarding algorithm to be compatible with the standard forwarding procedure of RPR-S node. Theoretical analysis and simulation results demonstrate that the proposed methods perform well in terms of performance metrics such as network's throughput and end-to-end delay.

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Zhizhong Zhang, Fang Cheng, Jiangtao Luo, Shaofeng Qiu, Qijian Mao, and Yunlin Zhang "Design, analysis and implementation of packets cross forwarding for interconnected resilient packet rings", Proc. SPIE 5596, Optical Transmission Systems and Equipment for WDM Networking III, (25 October 2004); https://doi.org/10.1117/12.567932

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KEYWORDS

Standards development

Data transmission

Logic

Computer simulations

Data modeling

Fluorescence correlation spectroscopy

Local area networks

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