IEEE 802.17, Resilient PacketRing Networks Enabled byFPGAsBy: Nick PossleyResilient Packet Ring (RPR) is a transport technologythat has been available for several years. Thestandard IEEE 802.17 specifies the transport. Thistransport technology provides a wide range ofservices that are just now becoming very importantto the industry for deployment of IP basedmultimedia services.Demand for this technology is increasing, and Xilinxhas invested in a supported reference design thatutilizes the Virtex™-4 family of FPGAs to create acomplete RPR MAC solution for equipmentvendors. The solution includes hardware andsoftware that provides full compliance to IEEE802.17.This paper describes RPR as a network, explainshow the MAC operates to provide required networkfunctionality, gives a high-level view of the Virtex-4implementation of the MAC including device sizing,and covers a few system design use cases.
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