PRS Q-80G, PRS C48X, and PRS C192X
Switch Fabric
PRS Q-80G Switch Device,
PRS C48X and PRS C192X Fabric
Interface Devices
The PRS Q-80G device performs the switch
core function, in configurations of two, four, or
eight devices, depending on the switching
capacity needs. The PRS C48X and PRS
C192X devices perform the queuing manager
function of the PRS Q-80G-based switches. An
adapter card can be equipped with either a
PRS C48X interfacing a 2.5-Gbps / OC-48
network processor or a PRS C192X interfacing
a 10-Gbps / OC-192 network processor or up to
four 2.5-Gbps / OC-48 network processors.
Product Brief
PB PRS Q-80G / v0.61 / 2-16-2006
–
Highlights –
QoS Enforcement at Media
Speed, Real-Time Traffic Sup-
port, Full Bandwidth Multicast
• Non-blocking, shared-memory,
single-stage switch fabric chip set:
PRS Q-80G cell switch device
providing 80 Gbps of aggregate
switching capacity, PRS C48X and
PRS C192X fabric interface devices
(queue managers)
• PRS C48X and PRS C192X available
in RoHS compliant version for lead
free designs
• Up to 320 Gbps (eight devices) of
full-duplex aggregate user bandwidth
with a per-port overspeed factor of 2
• QoS enforcement at media speed
• Real-time traffic support (guaranteed
precedence of time-sensitive traffic
over other traffic types)
• Multicast and broadcast full bandwidth
support (100% line utilization) while
preserving low switching delay
• Deterministic low latency, typically a
few microseconds for high priority
traffic under worst case conditions
(100% traffic load)
• Traffic scheduling QoS options: strict
priority scheduling, weighted round-
robin, exhaustive highest priority first
• End-to-end, in-band flow control
mechanisms through the switch fabric
• Redundant switch board operations:
hot standby mode, load sharing mode,
maintenance switchover (cell
lossless)
• AMCC SSC software for
configuration, monitoring, and control
of the switch board and AMCC
SWICC software, a PC tool for local/
remote testing (traffic generation,
digital eye, and so on)
• Evaluation switch boards, featuring
two PRS Q-80G (80 Gbps) or eight
PRS Q-80G (320 Gbps)
• System solution with AMCC's nP37xx,
framers, PHYs, and PowerPC
processors, and interoperability with
third-party network processor devices
Scalability and Multiple Port Speeds
The PRS Q-80G switch, in conjunction with the
PRS C48X and PRS C192X fabric interface
devices, provides 80 Gbps (two devices),
160 Gbps (four devices), or 320 Gbps (eight
devices) of full-duplex aggregate user
bandwidth with an overspeed factor per-port of
two to match wire-speed requirements for all
possible traffic patterns, with all line protocols.
The PRS Q-80G enables the design of
single-stage switch fabrics with up to 32 ports
for network processors that support OC-192c,
10-Gbps, and multi-GE applications, or up to
128 ports for network processors that support
OC-48c and multi-GE applications, or any
intermediate mix of those ports.
The PRS Q-80G also has built-in a 40-Gbps
clear channel attachment capability, requiring a
customer ASIC or FPGA to interface with a
40-Gbps protocol engine.
Switch Fabric Solution with Carrier
Class QoS Features for
Applications up to 320 Gbps
The AMCC PRS Q-80G is a switch device for
systems up to 320 Gbps of aggregate user
bandwidth. The PRS Q-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 of user
bandwidth with an overspeed factor of two.
Along with the AMCC PRS C48X 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 Q-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 PRS Q-80G 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 complete
solutions, AMCC also offers 80-Gbps and
320-Gbps reference switch boards.
RoHS Compliance to Enable Lead
Free Designs
The PRS C48X and PRS C192X fabric
interface devices are available in two versions:
the leaded version, for lead soldering process,
and the version complying with the directive on
the Restriction of the use of certain Hazardous
Substances (RoHS) and enabling lead free
soldering.
QoS Enforcement at Media Speed
The PRS Q-80G enables full bandwidth
utilization of the media connected to the
payload boards, and still maintains high QoS
performance:
• End-to-end flow control mechanisms through
the switch fabric, and programmable flow
control thresholds (including multicast),
enabling 100% utilization of the media
bandwidth while maintaining low jitter
• Natively multicast switching technology,
enabling full bandwidth multicast while
maintaining low switching delay
Empowering
Intelligent
Optical Networks
Empowering Intelligent Networks
1
Product Brief
PB PRS Q-80G / v0.61 / 2-16-2006
PRS Q-80G, PRS C48X, and PRS C192X
Switch Fabric
Line Card
CSIX / PL3
NP / TM
(nP37xx)
PRS C48X
5 Gbps
Backplane
2x3.2 Gbps
Product Overview
Protection Switch
Active Switch
4 x OC-12
2x3.2 Gbps
Line Card
CSIX
GE
10G / OC-192
NP / TM
GE
PRS C192X
20 Gbps
8x3.2 Gbps
8x3.2 Gbps
Line Card
CSIX / PL3
4 x GE
NP / TM
(nP37xx)
4 x OC-12
NP / TM
(nP37xx)
PRS C192X
20 Gbps
8x3.2 Gbps
PRS Q-80G
(two, four, or eight per plane)
OC-48
NP / TM
(nP37xx)
8x3.2 Gbps
Serial Links at
3.2 Gbps (with
8b/10b coding)
Fibre
Channel
NP / TM
PRS Q-80G Switch with PRS C48X and PRS C192X Fabric Interfaces
Support of Real-Time Traffic (TDM)
The PRS Q-80G addresses the technical
challenges (latency, jitter) of merging
real-time traffic with other traffic types over a
single communication infrastructure:
• Deterministic low latency, typically a few
microseconds transit delay in worst case
conditions (100% traffic load) for high
priority traffic.
• Guaranteed precedence of time-sensitive
traffic (for example, TDM) over other traffic
types, using fully preemptive traffic priority.
• Credit Table with fully preemptive highest
traffic priority (exhaustive scheduling)
Switch Board Redundancy for
High Availability
The PRS Q-80G can be designed to operate
in redundant switch board configurations that
address the high-availability requirements of
five-nine applications. On the payload
boards, the PRS C48X and PRS C192X
Fabric Interface chips provide a redundant
path with the switch boards.
The PRS Q-80G supports three redundancy
modes: hot standby mode (with automatic
takeover of the traffic of the failing active
board), traffic load sharing between the two
switch boards (with automatic take over of
the traffic of the failing board), and
maintenance switchover between switch
boards (without any service interruption and
no cell loss).
Full Bandwidth Multicast
The PRS Q-80G addresses the growing
needs of audio and video distribution
applications, thanks to its powerful multicast
and broadcast mechanisms: cell replication
at sending, with cells being scheduled at
different times for different output ports.
a redundant switch configuration,
communicates with its peer to perform
system recovery in case of component
failure.
In addition, the AMCC Switch Integrated
Control Console (SWICC) tool, a PC software
application, enables access to any
addressable resources in the switch device to
initiate or monitor any operational or test
function (for example, traffic generation,
digital eye, sense and operate of any bit, loop
back, and so on). The SWICC can be used
locally, on the customer premises, or for
remote support.
Backward Compatibility
The PRS Q-80G, PRS C48X, and
PRS C192X chipset offers backward
compatibility enabling co-population of both
existing and new line cards in the same
chassis: the PRS Q-80G switch chip SerDes
can operate at 2.5 Gbps per serial link
(instead of 3.2 Gbps) to support line cards
based on the previous PRS C192 fabric
interface chip, while the PRS C48X and
PRS C192X interface chips SerDes can
operate at 2.5 Gbps per serial link (instead of
3.2 Gbps) to operate with switch cards based
on the previous PRS 64Gu or PRS Q-64G
switch chips.
Multiple QoS Options
The PRS Q-80G can be suited to the
application specific QoS requirements thanks
to multiple traffic scheduling options:
• Strict traffic priority scheduling
• Configurable credit table (weighted
round-robin) to guarantee bandwidth to
lower priority traffic
Control Software
The control processor of the switch board
runs the AMCC Secondary Switch Controller
software (SSC), in charge of configuring,
monitoring, and controlling the switch board
operations. The SSC initializes the cell switch
device, performs diagnostics, monitors
device status, accumulates statistics, and in
2
Empowering Intelligent Networks
PRS Q-80G, PRS C48X, and PRS C192X
Switch Fabric
AMCC Software, Evaluation Platforms, Reference
Designs, Development Tools, and Design Support for
Time-to-Market
To help Telecom Equipment Manufacturers to evaluate and prototype
complete solutions, shorten project cycles, mitigate development risks,
and optimize their development costs, PRS Q-80G evaluation
platforms, validated with evaluation boards from major NP/TM
vendors, are available from AMCC. They include an 80-Gbps switch
board (two devices) and a 320-Gbps switch board (eight devices) that
can be operated also in a 160-Gbps configuration.
Switch core reference designs incorporating the AMCC PowerPC
405EP control processor, software to operate the switch boards,
PC-based tool to initiate or monitor any operational or test function (for
example, traffic generation, digital eye, sense and operate of any bit,
loop back, and so on), board design services, and board
manufacturing capabilities complement the AMCC PRS offering.
Product Brief
PB PRS Q-80G / v0.61 / 2-16-2006
• 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 Q-80G chassis: line cards with any of the
PRS C48, PRS C48X, PRS C192, and PRS C192X devices
PRS C48X and PRS C192X Fabric Interface Device
Features
• 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
PRS Q-80G Switch Core Device Features
The PRS Q-80G switch core device offers the following 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
Empowering
Intelligent
Optical Networks
Empowering Intelligent Networks
3
Product Brief
PB PRS Q-80G / v0.61 / 2-16-2006
PRS Q-80G, PRS C48X, and PRS C192X
Switch Fabric
Specifications
PRS Q-80G
Technology
Supply voltage
Typical power @100% traffic load
0.13 µm
1.5 V, 2.5 V
14.2 Watts (master)
16.9 Watts (slave)
14.7 Watts (last slave)
0°C to 125°C
624-ball CBGA
32.5x32.5 (1.27 mm)
PRS C48X
0.13 µm
1.5 V, 2.5 V
4.3 Watts
PRS C192X
0.13 µm
1.5 V, 2.5 V
9 Watts
Junction °C
Package
mm x mm (pitch)
0°C to 125°C
899-ball FC-PBGA
31x31 (1 mm)
0°C to 125°C
937-ball CBGA
32.5 x 32.5 (1 mm)
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 © 2006 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
4
Empowering Intelligent Networks
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