PRS 16G/C192
Switch Fabric
As a switch for 10-20 Gbps platforms,
the PRS 16G/C192 is an ideal solution
for cost-competitive, advanced
services applications, such as
medium-range routers for network
access/edge aggregation with
high-demanding packet processing;
remote location thin appliances for
firewall, SSL, VPN, security, intrusion
detection; data center server
appliances with deep packet
processing; NAS/SAN equipment;
and, more generally, service
applications requiring a 10-Gbps
uplink capability. All of these services
are running in the network processors
attached to the PRS 16G/C192 switch
ports.
As a fabric interface for linecards, the
PRS 16G/C192, enables switch/
adapter cards designed for
10-20 Gbps entry platforms to be used
as line cards in chassis-based
platforms addressing the higher
capacity needs of applications in the
Metro/WAN, wireless infrastructure,
and enterprise (data center, NAS/SAN,
high-end LAN).
Product Brief
PB PRS 16G/C192 / v0.5 / 12-19-2003
–
Highlights –
Single-Chip Switch for
Network Access, Network
Edge, and Data Center
Applications
• Multipurpose device operating
as the switch fabric of thin
appliances, or the fabric
interface of chassis-based
adapter cards
• 10-Gbps full-duplex switch, with
standard network processor
interface, enabling single switch/
adapter card designs
• Fabric interface for linecards
with up to four 2.5-Gbps/OC-48c
network processors or one
10-Gbps/OC-192c network
processor
• Extended product line and
market coverage within same
proven AMCC PRS Packet
Routing Switch architecture and
technology
• Design commonalities across
products with a single device for
low-end and high-end systems
• Optimized investments with
common switch fabric skills and
design re-use across product
line
• Optimized cost solution for
advanced services applications
An Economical, Scalable
Switch Fabric Solution for
Advanced Services Applications
The PRS 16G/C192 switch fabric is a
multipurpose device designed to
operate as either a standalone
PRS 16G switch or a PRS C192 fabric
interface chip. It provides a flexible
solution to satisfy the demand of
applications offering 10-20 Gbps
aggregate user bandwidth, while
addressing the scalability needs of
product lines that offer bandwidth
ranges between 10-20 Gbps and
320 Gbps.
2.5-Gbps/OC-48
OC-48
Network
Processor
OC-48
Network
Processor
OC-48
Network
Processor
OC-48
Network
Processor
CSIX
Interfaces
4x OC-12
PRS
16G/C192
4x GE
Fibre Channel
Empowering Intelligent Networks
1
Product Brief
PB PRS 16G/C192 / v0.5 / 12-19-2003
PRS 16G/C192
Switch Fabric
Single-Chip or Two-Chip Switch
Fabric with Seamless Network
Processor Connection – PRS 16G
Functions
The PRS 16G/C192 switch fabric device
offers an economical solution that
enables the implementation of 10-20
Gbps systems.
A single chip operates as a 10-Gbps
full-duplex switch fabric providing 4x4
switch ports at 2.5-Gbps/OC-48c speed
with standard CSIX-L1 interface.
In a two chip configuration, the
PRS 16G/C192 can operate as an 8x8
port, 2.5-Gbps/OC-48c switch fabric,
thus offering an aggregate full-duplex
throughput of 20 Gbps.
As another two-chip configuration, one
of the devices can be configured with a
single 10-Gbps/OC-192c port with
standard CSIX interface so as to provide
the uplink aggregating the traffic of the
four 2.5-Gbps/OC-48c ports of the other
chip.
The chip features configurable fixed-size
packet switching and is capable of
supporting either frame-based traffic
(through segmentation and reassembly
performed by the attached network
processors) or cell-based traffic.
In conjunction with switch designs based
on PRS 64Gu or PRS Q-64G devices,
adapter cards implementing the PRS
C192 fabric interface can equip single-
stage switching systems offering today
up to 320 Gbps of user bandwidth.
The integration of self-switching and
fabric interface capabilities into a single
device provides system vendors with an
easy path to scale their platforms from
low-end boxes up to high-end, chassis-
based solutions capable of switching up
to 320 Gbps of aggregate full-duplex
user traffic, while optimizing and
protecting their line card design
investments.
This enables offerings that allow
operators to deploy entry versions of
their next-generation, chassis-based
platforms, while they are introducing
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.
Robust Features
The following features provide design
flexibility:
• 10-Gbps (stand-alone chip) or
20-Gbps (back-to-back chips)
aggregate user bandwidth
• Four 2.5-Gbps/OC-48c NPU
attachments or one 10G/OC-192c
NPU attachment per chip
Product Overview
• Embedded standard CSIX-L1 interface
to Network Processor or Traffic
Manager
• Switch/adapter cards with seamless
connection between switch fabric chip
and NPU(s)
• Ingress Virtual Output Queuing (VOQ)
with up to 1024 unicast queues and
eight multicast queues
• Quality-of-Service (QoS) support with
four levels of traffic priority and four
programmable ingress queue
thresholds (ingress CSIX flow control
per destination and priority)
• Packet payload protection, with
optional cyclic redundancy check
insertion
• Packet header parity generation and
checking
• Efficient multicast (replication at
sending)
Adapter
CSIX
GE
16 G
bps
8 Links at
2.5 Gbps
8 Links at
2.5 Gbps
GE
Adapter
CSIX
OC-48
Network
Processor
OC-48
Network
Processor
OC-48
Network
Processor
OC-48
Network
Processor
16
Gb
ps
10G
Network
Processor
PRS
16G/C192
PRS 64Gu,
PRS Q-64G
1
0
Active
Switch
1
0
Switch
Control
Switch
Control
OC-12
1
OC-12
4
16
ps
Gb
PRS
16G/C192
8 Links at
2.5 Gbps
8 Links at
2.5 Gbps
16 G
bps
1
0
1
0
Protection
Switch
Fibre
Channel
Fibre
Channel
Switch Core (NxN)
Switch Fabric
40-320 Gbps Switch Applications
2
Empowering Intelligent Networks
Product Brief
PB PRS 16G/C192 / v0.5 / 12-19-2003
PRS 16G/C192
Switch Fabric
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.
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.
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.
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
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
Normal Power Dissipation @100% Traffic
Junction Temperature Range
Packaging
0.18µm (0.11µm L
eff
) CMOS SA-27E
1.5V or 1.8V, 2.5V
9.8 Watts @ 130-MHz core clock
11.5 Watts @ 166-MHz core clock
0°C to 125°C
37.5mm x 37.5mm
840-ball HyperBGA
TM
(1.27mm balls pitch)
AMCC reserves the right to make changes to its products, or to discontinue any product or service without notice, and advises its customers to obtain the latest
version of relevant information to verify, before placing orders, that the information being relied upon is current.
AMCC is a registered trademark of Applied Micro Circuits Corporation. Copyright © 2003 Applied Micro Circuits Corporation. All Rights Reserved.
Other company, product, and service names may be trademarks or service marks of others.
6290 Sequence Drive • San Diego, CA 92121 • Tel: 858 450-9333 • Fax: 858 450-9885 • http://www.amcc.com
For technical support, please call 800 840-6055 or email productsupport@amcc.com
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