TM
Product Brief
Cortina Systems
®
CS3487 4-port 10G Oversubscription Ethernet Aggregator
Overview
The Cortina Systems
®
CS3487 4-port 10 Gigabit
Oversubscription Ethernet Aggregator (CS3487
Ethernet Aggregator) is a 4-port 10 Gigabit
oversubscription Ethernet Aggregator for high-density
switches and transport platforms. It provides industry-
leading 10 GE integration, with four on-board XFI
SerDes for direct connection to XFP optical modules.
With advanced classification through Layer 4, four
queues per port, efficient QDR-II/II+ oversubscription
buffers, WRED, and strict priority and round robin
scheduling options, CS3487 Ethernet Aggregator
delivers the strongest oversubscription feature set in
the industry. It also supports per-VLAN policing,
statistics, tagging, and classification to assist the
delivery of MEF-compliant Carrier Ethernet services. On
the host side, Cortina Systems, Inc.’s (Cortina
TM
) open
Interlaken protocol achieves 25 Gbps of bandwidth
across 2-8 SerDes lanes for the industry’s most cost
effective high-performance interconnect.
QDR-II/II+
3 @ 300 MHz
Serial
to
XFP
Optics
4
XFI
LAN
or
WAN
PHY
10GE
MAC
Per-
VLAN
Tagging
Per-
VLAN
Classifier
& Marker
Per-
VLAN
Policer
Queuing
and
Shaping
Interlaken
Interlaken
To Host
TX
Buffer
μP i/f
JTAG
LEDs
GPIO
μP
Test
Activity and User-Controlled
I/O
Status
CS3487 Ethernet Aggregator Block Diagram
Copyright © 2007 - 2008 Cortina Systems, Inc.
Product Brief Number: 400015-2.1
Features
Functionality:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
4 x 10 Gigabit Ethernet MACs
LAN or WAN PHY on any port
4 x XFI SerDes
1 x 24 Gbps Interlaken to host
Guaranteed and shaped max BW per-priority
Rule-based classification engine and frame parser
through Layer 4, including support for IPv6
MEF-compliant per-VLAN policing, statistics,
classification, and tagging
.1p and DSCP marking and marking down of yellow
frames
Four queues per port
RFC2698 policing to committed and peak
information rate
Optional QDR-II/II+ memories (3 devices @ 300 MHz)
for oversubscription
WRED or priority drop thresholds for congestion
management
Any combination of strict priority or packet-
weighted round robin priority scheduling to host
Standard Ethernet MIBs and RMON (RFCs 2665, 2819)
Interfaces:
• Interlaken to host: 2-8 lanes, with SerDes rate
from 3.125 – 6.25 Gbps
• Intel*/Motorola*-style Microprocessor bus
• GPIO for LEDs
• JTAG
Technology:
• 1369-ball BGA, 37.5x37.5mm
• 0.13
μm
CMOS
Application: Oversubscribed Switch/Router Line Card (2:1)
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
4
4
QDR
QDR
QDR
Interlaken
CS3487
40Gbps Packet
Processor
QDR
QDR
QDR
Interlaken
CS3487
Copyright © 2007 - 2008 Cortina Systems, Inc.
Product Brief Number: 400015-2.1
Application: Oversubscribed Switch/Router Line Card (4:1)
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
QDR
QDR
QDR
4
Interlaken
(2 Lanes)
CS3487
QDR
QDR
QDR
4
CS3487
QDR
QDR
QDR
Interlaken (2L)
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
XFP Optics
40Gbps Packet
Processor
Interlaken (2L)
4
CS3487
QDR
QDR
QDR
4
CS3487
Interlaken (2L)
Cortina in Communications
Cortina is a leading supplier of intelligent
communication solutions through continuous
innovations in advanced port processing and
intelligent port connectivity to the Core, Metro,
Access and Enterprise Market Segments. With our
state-of-the-art high speed analog digital
integration, we deliver a wide suite of products that
address our customers’ performance, density and
flexibility needs enabling faster time-to-market,
longer time-in-market, and increased revenue
opportunities. Working closely with our customers
to understand their system requirements and
anticipate their needs, we are creating the
foundation ingredients for new generations of
services.
*Other names and brands may be claimed as the property of others.
TM
Cortina Systems, Inc.
840 W California Ave.
Sunnyvale, CA 94086
408-481-2300
sales@cortina-systems.com
www.cortina-systems.com
Product Brief Number: 400015-2.1
Copyright © 2007 - 2008 Cortina Systems, Inc.
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