Overview
The ABM-3G PXF 4333 Version 1.1 is Infineon’s new generation ATM Buffer Manager device. It addresses the performance needs of new multi-service platforms with combined ATM cell and packet-handling applications. The ABM-3G manages ATM traffic flowing through multi-service platforms in which voice, video, and data traffic converge. The optimizes the interworking of ATM and higher-layer traffic-management and flow-control schemes. Optional “leaky bucket” shaping per queue provides full VBR support. The ABM-3G is useful in applications where extensive ATM traffic management capabilities are required. This includes either distributed or centralized system architectures that cover enterprise and Central Office switches, DSLAMs, and ATM line cards for routers and switches.

FEATUREs
• ATM Traffic Management processing support up to STM-4/OC-12 equivalent bandwidth
• Throughput at UTOPIA Interface up to 687 Mbit/s transmit, 795 Mbit/s receive
• Speed-up factor relative to STM-4/OC12: 1.32
• Uni-directional mode with combined resources of both directions (optional)
• 256K cells buffer per direction (configurable in guaranteed and shared buffer)
• Up to 16384 connections arbitrarily assignable to queues for sharing connections and saving resources
• Up to 8192 queues per direction, individually assignable to schedulers and to traffic classes
• Up to 128 Scheduler Blocks (SB) per direction with programmable service rates, individually assignable to UTOPIA ports
• The ABM-3G is cascadable to provide up to 512 schedulers, 32K queues, and 1M cell memories per direction
• Up to 16 traffic classes with individually-selectable thresholds for highest service differentiation
• Up to 48 ports per UTOPIA Interface
• Standards-compliant support for the following ATM Forum service categories: CBR, rt-VBR, nrt-VBR, GFR, UBR, UBR+
• Generic PHB (Per Hop Behavior) characteristics are configurable (PHB traffic class is not standardized)
• Configurable cell-address translation modes