PRSC48X

• Port queuing manager (one per line card) between one or multiple network processors and a PRS 80G or PRS Q-80G switch core
• PRS 80G or PRS Q-80G interface: embedded 3.2-Gbps SerDes, with 8b/10b coding, and a speed-up factor of two, or eight between the PRS Q-80G and PRS C48X
• PRS C48X: CSIX-L1 or PL3-based (POS-PHY Level 3 / OIF-SPI3- 01.0) 32-bit wide interface for 2.5-Gbps / OC-48 network processor
• PRS C192X: CSIX-L1 64-bit wide or 128-bit wide interface for 10- Gbps / OC-192 network processor or, in subport mode, 4x CSIX-L1 or PL3-based (POS-PHY Level 3 / OIF-SPI3-01.0) 32-bit wide interfaces for 2.5-Gbps / OC-48 network processors
• PRS C192X operation in subport (or quad PRS C48X) mode with PRS 64Gu, PRS 80G, PRS Q-64G, and PRS Q-80G switch cores
• Dual-switch attachment for redundant switch plane operations
• Ingress virtual output queuing (VOQ), with up to 1024 unicast queues and eight (PRS C48X) or 32 (PRS C192X) multicast queues, preventing head-of-line blocking
• Up to four levels of traffic priority (CoS) and four programmable ingress queue thresholds (ingress CSIX / PL3 flow control per destination and priority)
• Shared ingress buffer and egress buffer capacities (configurable), with sharing capability between planes
• Switch interface ingress cell scheduling: strict priority scheduling, credit table (weighted round-robin), exhaustive highest priority first
• End-to-end cell payload protection, with optional cyclic redundancy check insertion
• Internal loopback support for both the CSIX / PL3 interface and switch interface
• Backward compatibility with PRS 64Gu switch core: SerDes operation at 2.5 Gbps, with speed-up factor of 1.6
• Backward compatibility with PRS Q-64G switch core: SerDes operation at 2.5 Gbps, with speed-up factor of 1.6 (PRS C192X) or 6.4 (PRS C48X)
• Inter-operability in PRS 64Gu and PRS Q-64G chassis: line cards with any of the PRS C48 (PRS 64Gu chassis only), PRS C48X, PRS C192, and PRS C192X devices

The AMCC PRS 80G 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. PRSC48X 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 PRSC48X and PRS C192X fabric interface devices, the PRS 80G 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. PRSC48X 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 PRSC48X 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.