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Product Brief

PRS 16G/C192

Switch Fabric

PB PRS 16G/C192 / v0.5 / 12-19-2003

3

Empowering Intelligent Networks

Fabric Interface for

Highly-Scalable Systems –

PRS C192 Functions

The PRS 16G/C192 switch fabric

device is designed to alternately

operate as a PRS C192 switch fabric

interface chip. Located on each

adapter card, it supports either a 10G/

OC-192c network processor or up to

four 2.5G/OC-48c network processors.

It performs the queuing manager

function of a PRS-based switch that

can scale from 4 to 32x10-Gbps/

OC-192c switch ports, or 16 to

128x2.5-Gbps/OC-48c switch ports,

offering up to 320 Gbps of full-duplex

aggregate user bandwidth.

PRS 64Gu and PRS Q-64G switch

core devices use 2.5-Gbps high-speed

serial links for communication with

adapter cards equipped with the

PRS C192 fabric interface chip. The

PRS 16G/C192 provides one 64- or

128-bit wide CSIX-L1 compliant

interface or four 32-bit wide CSIX-L1

compliant interfaces to Network

Processors or Traffic Managers.

Redundancy Support for High

Availability – PRS C192 Function

To increase availability and meet

service providers’ needs and

high-demanding applications (24x7),

switch fabrics are often designed with

two redundant planes. If an element in

one plane fails, the other plane can

take over. The PRS C192 device

supports this crucial capability, in

conjunction with the PRS 64Gu or

PRS Q-64G switch core devices. Each

switch element has a built-in filtering

mechanism for redundancy control.

On the line adapter, the PRS C192

chip provides a redundant path with

the switch planes, enabling traffic load

sharing and switchover between the

two switch planes, including

maintenance switchover without

packet loss.

Highly Efficient Multicast –

PRS 16G and PRS C192 Function

Multicast with QoS is an increasingly

valued capability in Internet and new

service applications. The PRS 64Gu

and PRS Q-64G switch core devices,

in conjunction with the PRS 16G/C192

device provide a built-in efficient

multicast function, easing the design of

edge routers and other devices that

provide these complex services. To

enable multicasting and maximize

product resources utilization, the

switch executes a scheme of store

once and transmit multiple times

(replication at sending). The multicast

packet is placed in shared memory

and the memory-location index is

stored in the output queues

corresponding to the target output

ports and associated priorities. When

used as a standalone switch, the

PRS 16G/C192 inherits this leading

multicast architecture, and so helps

customers to efficiently take

advantages of these multicast

applications.

Enablement Tools for an

Expedited Time to Market

To help reduce development time and

cost, AMCC offers PRS 16G/C192,

PRS 64Gu, and PRS Q-64G switch

evaluation platforms, switch core

reference designs, and reference

software to operate the switch

subsystem control layer. To allow

system vendors to evaluate full

solutions, the PRS platforms are

enabled for attachment of other

suppliers’ NPU platforms. Board

design services and board

manufacturing capabilities

complement the AMCC PRS offering.

Specifications

PRS 16G/C192

Technology

Power Supply

1.5V or 1.8V, 2.5V

Normal Power Dissipation @100% Traffic

9.8 Watts @ 130-MHz core clock

11.5 Watts @ 166-MHz core clock

Junction Temperature Range

0°C to 125°C

Packaging

37.5mm x 37.5mm