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
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
