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PRS5G 数据表(PDF) 2 Page - Applied Micro Circuits Corporation |
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PRS5G 数据表(HTML) 2 Page - Applied Micro Circuits Corporation |
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2 / 4 page  Product Overview Product Brief PRS 5G and PRS 20G Switch Fabric PB PRS 5G-20G / v0.5 / 05-24-2004 2 Empowering Intelligent Networks advanced IP-based services, for example, merging data and voice over Quality-of-Service (QoS)-aware networks, implementing virtual private networks (VPNs), or deploying security applications closer to the end users. PRS 5G Switch Fabric for 5-20 Gbps Meshed Switch Systems (No Central Switch Fabric) The PRS 5G (PRS C48X) switch fabric device provides 2.5 Gbps of full-duplex minimum aggregate user bandwidth. It allows smooth growth of smaller-capacity systems by the simple addition of PRS 5G-based blades, without any central switch fabric. Eight PRS 5G devices can be linked together in a meshed topology to enable the design of systems with up to eight user blades, each with a PRS 5G device attaching a network processor such as the AMCC nP3700 Integrated Network Processor / Traffic Manager (see Figure 1 and Figure 2). More compact blades, housing multiple network processors, can be implemented with PRS 20G devices. The PRS 20G can also operate in a meshed configuration with the PRS 5G to provide 10-Gbps uplink capability in smaller-capacity systems (see Figure 3). The PRS 5G blades can be designed to preserve the possibility of adding a central PRS switch, when needed to extend the system capacity. This is possible because the PRS 5G alternately operates as a PRS C48X switch fabric interface providing queuing manager functionality for PRS core switches. As a result, the same PRS 5G blades can be used in both meshed and centralized switch fabric topologies, thus optimizing OEM and user investments in PRS 5G-based blades. A standard-based AdvancedTCATM chassis can be used in the design of PRS systems that can evolve from a few tens of Gbps to 100 or 120 Gbps of full-duplex user bandwidth. Figure 1: 8x8 Meshed Adapters Through Passive Backplane 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor PRS 5G 1 PRS 5G 2 PRS 5G 3 PRS 5G 4 PRS 5G 5 PRS 5G 6 PRS 5G 7 PRS 5G 8 PHY PHY PHY PHY PHY PHY PHY PHY Backplane CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 Figure 2: 4x4 Meshed Adapters Redundancy Through Passive Backplane Figure 3: Meshed Adapters Through Passive Backplane with Uplink Aggregation 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor PRS 5G 1 PRS 5G 2 PRS 5G 3 PRS 5G 4 PHY PHY PHY PHY CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 4G / OC-48 Network Processor 4G / OC-48 Network Processor 4G / OC-48 Network Processor 10G / OC-192 Network Processor PRS 5G 1 PRS 5G 2 PRS 5G 3 PRS 20G PHY PHY PHY PHY CSIX PL3 CSIX PL3 CSIX PL3 CSIX PL3 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 |
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