AMCC PRS20G

PRS 5G and PRS 20G
Product Brief
Switch Fabric
Cost Effective Switch Fabric Solutions for Smaller-Capacity MultiService Provisioning Platforms,
Scalable to High-end Systems
The AMCC PRS 5G and PRS 20G
devices are members of the Packet
Routing Switch (PRS) multi-purpose
switch fabric family. They bring greater
granularity and Internet class of service
to smaller-capacity systems such as
remote access devices, enterprise
networking equipment, and low-end SAN
systems. The PRS 5G and PRS 20G
provide a flexible switching solution to
satisfy the demand of applications
offering 5-20 Gbps of full-duplex
aggregate user bandwidth with an
overspeed factor of two.
An integral part of a complete system
solution with AMCC network processors,
traffic managers, framers, and software
tools, the seamless upgrade path of the
PRS 5G and PRS 20G to
higher-capacity solutions, such as the
PRS 80G, enables customers to develop
efficient, smaller-capacity systems today,
and easily evolve to larger systems in
the future.
The PRS 5G and PRS 20G chips are
implemented with IBM 0.13 micron
technology, use IBM 3.2-Gbps
high-speed serial links, and introduce
new system design options, such as PL3
interfaces for network processors and
traffic managers (in addition to CSIX-L1).
Dual Functionality, Switch and
Fabric Interface, for Single Design
of User Cards Across Entire
Product Lines
The PRS 5G and PRS 20G solutions
are hardware and software compatible
with the PRS 80G, PRS 64Gu, and
PB PRS 5G-20G / v0.5 / 05-24-2004
PRS Q-64G high-end switch devices.
The PRS 5G and PRS 20G devices can
operate as either switching devices
located on user cards of
smaller-capacity systems, or switch
fabric interface devices of user cards
connected to the PRS central switch of a
high-end system. Known as PRS C48X
and PRS C192X when used as fabric
interfaces, these devices address the
scalability needs of product lines that
offer users full-duplex bandwidth ranges
between 5 Gbps and 320 Gbps.
As switches for 5-20 Gbps platforms,
the PRS 5G and PRS 20G are an ideal
solution for cost-competitive, advanced
services applications, such as
medium-range routers with high-demand
packet processing for network access/
edge aggregation; 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.
As fabric interface devices for line
cards, the PRS 5G and PRS 20G (PRS
C48X and PRS C192X) enable cards
designed for 5-20 Gbps platforms to be
used 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). Cards
implementing the PRS C48X or PRS
C192X fabric interface can equip singlestage switching systems based on PRS
80G, PRS 64Gu, or PRS Q-64G switch
devices, offering up to 320 Gbps of
full-duplex 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
smaller-capacity systems up to high-end,
chassis-based solutions capable of
switching up to 320 Gbps of full-duplex
aggregate user traffic, while optimizing
and protecting their line card design
investments. With such OEM offerings,
operators can deploy entry versions of
next-generation, chassis-based
platforms, while they are introducing
Empowering
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Empowering
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Highlights –
Switching Solutions for 5-20
Gbps Advanced Services
Applications, Optimized to
Extend into the 20-320 Gbps
Range
• Multi-purpose devices operating
as a switch fabric for thin
appliances, or a fabric interface
for chassis-based systems
• PRS 5G Switch Fabric providing
more than 2.5-Gbps of full-duplex
user bandwidth for 5-20 Gbps
meshed switch systems (no
central switch fabric)
• PRS 20G Switch Fabric providing
more than 10-Gbps of full-duplex
user bandwidth for 10 Gbps
(single-card) or 20 Gbps (twocard) smaller-capacity systems
• Embedded 3.2-Gbps SerDes,
with 8b/10b coding, for an
overspeed factor of two
• CSIX-L1 and PL3 standard fabric
interfaces for high-density cards
with up to four multi-GE/OC-48c
network processor or one
10-Gbps/OC-192c network
processor
• Complete multi-GE/OC-48c
solution with the AMCC nP3700
Integrated Network Processor /
Traffic Manager
• Enabling standard-based
AdvancedTCATM-compliant
system designs
• Product line designs in the 5-to320 Gbps range, within the same
proven PRS Packet Routing
Switch architecture and
technology
• Same cards for pizza boxes and
chassis-based systems, for
optimized investments in card
design, manufacturing and supply
• Highly-scalable solutions
preserving customer investments
in network processor cards
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PRS 5G and PRS 20G
Product Brief
Switch Fabric
PB PRS 5G-20G / v0.5 / 05-24-2004
central PRS switch, when needed to
extend the system capacity. This is
possible because the PRS 5G
alternately operates as a PRS C48X
switch fabric interface providing queuing
manager functionality for PRS core
switches. As a result, the same PRS 5G
blades can be used in both meshed and
centralized switch fabric topologies, thus
optimizing OEM and user investments in
PRS 5G-based blades.
PRS 5G devices can be linked together
in a meshed topology to enable the
design of systems with up to eight user
blades, each with a PRS 5G device
attaching a network processor such as
the AMCC nP3700 Integrated Network
Processor / Traffic Manager (see
Figure 1 and Figure 2).
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.
PRS 5G Switch Fabric for 5-20
Gbps Meshed Switch Systems (No
Central Switch Fabric)
Product Overview
More compact blades, housing
multiple network processors, can be
implemented with PRS 20G devices.
The PRS 20G can also operate in a
meshed configuration with the PRS 5G
to provide 10-Gbps uplink capability in
smaller-capacity systems (see Figure 3).
The PRS 5G (PRS C48X) switch fabric
device provides 2.5 Gbps of full-duplex
minimum aggregate user bandwidth. It
allows smooth growth of
smaller-capacity systems by the simple
addition of PRS 5G-based blades,
without any central switch fabric. Eight
A standard-based AdvancedTCATM
chassis can be used in the design of
PRS systems that can evolve from a few
tens of Gbps to 100 or 120 Gbps of
full-duplex user bandwidth.
The PRS 5G blades can be designed
to preserve the possibility of adding a
Backplane
PRS 5G
1
CSIX
PRS 5G
2
PL3
CSIX
PRS 5G
3
PL3
CSIX
PRS 5G
4
PL3
CSIX
PL3
PRS 5G
5
CSIX
PL3
PRS 5G
6
CSIX
PRS 5G
7
PL3
CSIX
PRS 5G
8
PL3
CSIX
PL3
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
PHY
PHY
PHY
PHY
PHY
PHY
PHY
PHY
Figure 1: 8x8 Meshed Adapters Through Passive Backplane
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PRS 5G
1
PRS 5G
2
PRS 5G
3
PRS 5G
4
PRS 5G
1
PRS 5G
2
PRS 5G
3
PRS 20G
CSIX
PL3
CSIX
PL3
CSIX
PL3
CSIX
PL3
CSIX
PL3
CSIX
PL3
CSIX
PL3
CSIX
PL3
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
4G / OC-48
Network
Processor
10G / OC-192
Network
Processor
PHY
PHY
PHY
PHY
PHY
PHY
PHY
PHY
Figure 2: 4x4 Meshed Adapters Redundancy Through
Figure 3: Meshed Adapters Through Passive Backplane
Passive Backplane
with Uplink Aggregation
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Empowering Intelligent Networks
PRS 5G and PRS 20G
Product Brief
Switch Fabric
PB PRS 5G-20G / v0.5 / 05-24-2004
PRS 20G Switch Fabric for
10 Gbps (Single-card) or 20 Gbps
(Two-cards) Smaller-Capacity
Systems
The PRS 20G (PRS C192X) switch
fabric device enables the implementation
of one-card or two-card systems
providing 10-20 Gbps of full-duplex
minimum aggregate user bandwidth.
A single device operates as a 10-Gbps
full-duplex switch fabric providing 4x4
switch ports at 2.5-Gbps/OC-48c speed,
with a standard CSIX-L1 or PL3 interface
to network processors such as the
AMCC nP3700 Integrated Network
Processor / Traffic Manager (see
Figure 4).
In a two-card system, the two PRS
20G devices can operate as an 8x8 port
switch fabric, with each port supporting
2.5-Gbps/OC-48c speeds, thus offering
an aggregate full-duplex throughput of
20 Gbps. As another two-card
configuration, one of the PRS 20G
devices can be configured with a single
10-Gbps/OC-192c port with a standard
CSIX interface to a network processor,
so as to provide the uplink aggregating
the traffic of the four 2.5-Gbps/OC-48c
ports of the other card (see Figure 5).
CSIX or PL3
Interface
OC-48
4G / OC-48
Network
Processor
4x OC-12
4G / OC-48
Network
Processor
4x 1GE
4G / OC-48
Network
Processor
FibreChannel
4G / OC-48
Network
Processor
PRS 20G
Figure 4: PRS 20G as a 4x4 Switch
CSIX or PL3
Interface
OC-48
4G / OC-48
Network
Processor
4x OC-12
4G / OC-48
Network
Processor
4x 1GE
4G / OC-48
Network
Processor
FibreChannel
4G / OC-48
Network
Processor
CSIX
Interface
PRS 20G
PRS 20G
PRS 20G
10G / OC-192
Network
Processor
10GE or OC-192
8 Serial Links at
3.2 Gbps
Figure 5: PRS 20G in a 5x5 Switch with Uplink Aggregation
Empowering
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Optical
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Empowering
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PRS 5G and PRS 20G
Product Brief
Switch Fabric
PB PRS 5G-20G / v0.5 / 05-24-2004
PRS 5G (PRS C48X) and PRS 20G
(PRS C192X) Switch Fabric Device
Features
• 2.5-Gbps (PRS 5G) and 10-Gbps
(PRS 20G) full-duplex user bandwidth
switch devices with an overspeed of
two towards the backplane
• Embedded IBM 3.2-Gbps SerDes, with
8b/10b coding and XAUI-compliant
high-speed serial links
• PRS 5G (PRS C48X): CSIX-L1 or
PL3-based (POS-PHY Level 3 / OIFSPI3-01.0) 32-bit wide interface for
multi-GE / OC-48 network processors
• PRS 20G (PRS C192X): CSIX-L1
64-bit wide or 128-bit wide interface for
a 10-Gbps / OC-192 network
processor or 4x CSIX-L1 or PL3-based
(POS-PHY Level 3 / OIF-SPI3-01.0)
32-bit wide interfaces for multi-GE /
OC-48 network processors.
• PRS 20G (PRS C192X) operation in
subport mode or, in conjunction with
the PRS 80G switch core, in quad
PRS 5G (PRS C48X) mode, for more
integrated line card solutions
• Dual-switch attachment for redundant
switch plane operations (central switch
configurations)
• Highly-efficient multicast and
broadcast mechanism
• Ingress virtual output queuing (VOQ)
per destination port and priority, with
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separate 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 port and
priority)
Packet scheduling: strict priority
scheduling, credit table (weighted
round-robin), exhaustive highest
priority first
Implements flow control bit map
mapping to ease adapter redundancy
schemes
End-to-end packet payload protection,
with optional cyclic redundancy check
insertion
Internal loop back support for both the
CSIX / PL3 interface and switch
interface
Hardware compatibility with PRS 80G
switch core device via SerDes
operating at 3.2 Gbps
Backward compatibility with
PRS 64Gu switch core device via
SerDes operating at 2.5 Gbps
(overspeed factor of 1.6)
Backward compatibility with
PRS Q-64G switch core device via
SerDes operating at 2.5 Gbps
(overspeed factor of 1.6 for PRS 20G /
PRS C192X, or 6.4 for PRS 5G /
PRS C48X)
Enablement Tools for an
Expedited Time to Market
To facilitate the evaluation and
prototyping of complete solutions,
reference switch boards featuring the
AMCC PRS 5G and PRS 20G,
respectively, are available for installation
in evaluation platforms.
To help reduce development time and
cost, AMCC offers PRS 64Gu, PRS 80G
and PRS Q-64G switch evaluation
platforms, switch core reference
designs, and reference software to
operate switch boards.
To allow system vendors to evaluate
multi-vendor solutions, the PRS boards
and platforms are enabled for
attachment of other suppliers' NPU
platforms. Board design services and
board manufacturing capabilities
complement the AMCC PRS offering.
Specifications
PRS 5G (PRS C48X)
PRS 20G (PRS C192X)
Technology
0.13 µm
0.13 µm
Supply voltage
1.5 V, 2.5 V
1.5 V, 2.5 V
Typical power @100% traffic
5 Watts
9.5 Watts
Junction °C
0°C to 125°C
0°C to 125°C
Package
899-ball FC-PBGA
937-ball CBGA
mm x mm (pitch)
31x31 (1 mm)
32.5x32.5 (1 mm)
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version of relevant information to verify, before placing orders, that the information being relied upon is current.
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