Features: • Non-blocking, single-stage, shared-memory switch
• Device aggregate throughput: 80 Gbps
• One-device switch: 40 Gbps of aggregate user bandwidth (16x16 ports at 2.5-Gbps/OC-48c speed, or 4x4 ports at 10-Gbps/OC-192c speed)
• Two-device switch: 80 Gbps of aggregate user bandwidth (32x32 ports at 2.5-Gbps/OC-48c speed, or 8x8 ports at 10-Gbps/OC-192c speed)
• 2.5-Gbps ports with speed-up factor of two (in conjunction with PRS C48X fabric interface)
• 10-Gbps ports with speed-up factor of two (in conjunction with PRS C192X fabric interface)
• 10-Gbps port operation in 4x 2.5-Gbps mode (in conjunction with PRS C192X fabric interface)
• Embedded SerDes: 3.2-Gbps high-speed serial links, XAUI compliant, with 8b/10b encoding for link synchronization and supervision
• Multicast and broadcast without cell duplication in shared memory (cell replication at sending)
• TDM traffic support
• Traffic priorities (CoS): up to four (configurable number)
• Output queue scheduling options: strict priority scheduling, configurable credit table (weighted round-robin), exhaustive highest priority first
• Redundant switch plane operations: hot standby or load sharing mode, programmable scheduled switchover (cell lossless)
• Flow control based on a grant mechanism, subport flow control
• Programmable flow control thresholds for output queues, shared memory, multicast/broadcast
• Fixed-length cells with configurable length (64, 72, or 80 bytes)
• Programmable cell header size: two, three, or five bytes, independent of the switch configuration, containing destination bitmap, packet priority, and switch redundancy support information, all protected by a parity bit
• Local control processor interface (serial host interface)
• Reception (transmission) of control cells sent to (by) the local processor on any input (output) port
• AMCC software for switch board control, PC-based development / test tools
• Pin-to-pin and switch control software compatibility with PRS 64Gu switch core
• Backward compatibility with PRS C48 or PRS C192 fabric interfaces: SerDes operation at 2.5 Gbps (speed-up factor of 1.6)
Inter-operability in PRS 80G chassis: line cards with any of the PRS C48, PRS C48X, PRS C192, and PRS C192X devicesDescriptionThe AMCC PRS80G is a switch device for systems in the range of 20-to-80 Gbps of aggregate user bandwidth. The PRS 80G is a cell switch, shared-memory device, which provides 80 Gbps of switching capacity. It uses .13-micron technology and embedded 3.2-Gbps SerDes to deliver 40 Gbps (one device) or 80 Gbps (two devices) of user bandwidth with an overspeed factor of two.
Along with the AMCC PRS C48X and PRS C192X fabric interface devices, the PRS80G addresses the critical QoS needs of a wide range of highly demanding applications that handle any mix of real-time and best effort traffic in the WAN multi-services, Wireless Infrastructure, Metro Ethernet, Enterprise, and TDM spaces. The PRS 80G provides low latency, carrier class QoS and full bandwidth multicast to efficiently handle real-time traffic (including TDM) and enable convergence of voice, video, and data traffic over a single network infrastructure. It fits the requirements of the new carrier services, while leveraging previous carrier investments by providing the capability to switch IP and TDM traffic concurrently on the same platform.
The PRS80G is an integral part of a complete system solution with AMCC's nP37xx integrated network processor and traffic manager products, framers, PHYs, PowerPC processors, and software. To facilitate the evaluation and prototyping of completesolutions, AMCC also offers an 80-Gbps reference switch board, as well as ATCA Switch boards, featuring the AMCC PRS 80G.
PRS80G Data Sheet
