Data Sheet
Cisco CSS 11500 Series
Content Services Switch
The Cisco CSS 11500 Series Content Services Switch is a compact modular
platform, delivering the richest Layer 4–7 traffic management services for
e-business applications.
The Cisco CSS 11500, with the
The Cisco CSS 11500 Series Content
award-winning Cisco Web Network
Services Switch enables businesses to
Services (WebNS), is specifically designed to
simultaneously reduce costs by optimizing
provide robust transport and application
data center resources and boosting
(Layer 4–7) services for Internet and
productivity, as well as offering a superior
intranet data centers. The Cisco CSS 11500
online experience for customers, business
builds on the success of the Cisco CSS
partners, and employees. Through content
11000 Series in five key areas:
fast switching and forwarding, the Cisco
• Introduces an intelligent, distributed
CSS 11500 Series switches improve
architecture to help organizations meet
utilization, responsiveness, availability,
the real-world scaling requirements of
scalability, and security of Web sites, server
today’s e-business infrastructure
farms, cache clusters, and firewall systems.
• Improves site availability and
transaction integrity by introducing
Adaptive Session Redundancy (ASR)
for E-Business
—a new industry standard in
In addition to the Cisco CSS 11500
stateful failover
switches, Cisco delivers a complete product
• Delivers the greatest flexibility of any
line, including the Cisco CSS 11050,
content switch in its class for
CSS 11150, and Content Switching Module
customizing combinations of ports,
(CSM)—an integrated services module for
performance, and services
Pictured above, from
top to bottom, the
Cisco CSS 11501,
Cisco CSS 11503, and
the Cisco CSS 11506.
Premier Traffic Management
• Scales secured transaction performance
through support of an integrated,
high-capacity Secure Sockets Layer
(SSL) module
• Protects investments by enabling
upgrades of performance, ports, and
services through modularity
the Cisco Catalyst® 6500 Series Switch and
Cisco 7600 Internet Router. The Cisco CSM
attains the highest performance and offers
transport and application (Layer 4–7)
features as rich as those in WebNS.
Through full integration with Cisco IOS®
Software, the Cisco Catalyst 6500, and the
Cisco 7600 Internet Router—Cisco CSM
also supports the highest port density and
comprehensive internetworking features.
The Cisco CSS 11500 and CSM together
are, simply, the ideal choices for enterprises
and service providers deploying content
services.
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Scalable Distributed Architecture for
SSL Integration for Security and Performance
Today and Tomorrow
Cisco offers the most scalable integrated SSL solutions of any Layer
In a typical deployment, the Cisco CSS 11500 intercepts a request
4–7 switches.
from a client browser, characterizes the flow by reading Hypertext
SSL, the industry standard for secure transport of traffic from client
Transfer Protocol (HTTP) headers, selects a destination server based
browsers to Web servers, presents two critical challenges for today’s
on resource availability, and forwards the flow. Because it quickly
e-business infrastructure. First, because SSL encrypts data and
processes the entire HTTP header (full URL, cookie, and extensive
headers, it obscures the request-specific information that Layer 4–7
resource verification information), the Cisco CSS 11500 identifies
switching decisions are made on. Second, SSL authentication places
the user, what the user wants to do, and how best to service the
a high processing load for each SSL flow setup.
user’s request within a global Web infrastructure.
The Cisco CSS 11500 with integrated SSL modules meets both of
The Cisco CSS 11500 provides a fully distributed architecture—all
these challenges by combining leading SSL acceleration technology
modules in the system contribute to the overall processing and
with the Cisco WebNS technology. In addition to superior price
memory needs for policy-based flow setup and flow forwarding. In
performance, the SSL module simplifies the management of digital
this way, performance scales linearly as modules are added, and
certificates and offers new possibilities in optimizing the
heavy traffic that hits one module can be balanced to others within
switch-to-server architecture for security and performance. And SSL
a single system. Therefore, the Cisco CSS 11500 balances traffic not
transaction performance may be scaled by adding multiple SSL
only within a data center but also across its own internal modules.
modules to a chassis.
This innovative architecture addresses the primary limitations of
PC-and application-specific integrated circuit (ASIC)-based
Modularity for Investment Protection
solutions. Unlike PC-based systems, the network processors of the
Through its modular design, the Cisco CSS 11500 will meet your
Cisco CSS 11500 provide ample packet processing power and
functional requirements today while providing for expansion for
bandwidth, avoiding the bottlenecks of the PC bus and a single
tomorrow’s needs. The Cisco CSS 11500 Session Accelerator
central processor. And unlike ASIC-based platforms, the powerful,
Module is a cost-effective way to add performance for flow setup
yet adaptable processors of the Cisco CSS 11500 enable easy
and flow forwarding. A selection of input/output (I/O) modules not
integration of new software features.
only offers the choice of port densities of Fast or Gigabit Ethernet,
The Cisco CSS 11500 can apply all its processing power to any port
but also boosts flow performance. Optional memory upgrades
at any time, and it can grow with changing feature and scalability
increase the number of simultaneous flows supported. PCMCIA
requirements. The system is designed to readily adapt to changing
Flash memory and hard disks are supported.
e-business needs—without complex and costly hardware upgrades.
Local and Global Load Balancing
New Standard in High Availability
By supporting the latest advances in local and global load balancing,
The Cisco CSS 11500 delivers ASR—the industry’s first stateful
the Cisco CSS 11500 Series Switch not only dramatically increases
Layer 5 session redundancy feature that enables failover of
site availability—greatly improving user response time and
important flows while maximizing performance.
retention—but also optimally utilizes site resources, thereby
Some flows—such as a long-lived File Transfer Protocol (FTP) or a
decreasing the cost to serve end users.
database session—may be mission critical, but many flows are not.
The Cisco CSS 11500 learns where specific content resides, either
Most solutions on the market today require all traffic—important or
locally or remotely, and dynamically selects the best Web server or
not—to be backed up from one unit to another. If the majority of
cache for specific content requests.
flows is not critical, most of system performance is wasted on
Local server selection is based on server load and application
unnecessary back ups.
response time, as well as traditional least connection and
With ASR, the Cisco CSS 11500 may be configured so that critical
round-robin algorithms. Any application that uses standard TCP or
flows are marked as replication worthy, whereas others need not be
User Datagram Protocol (UDP) protocols can also be load balanced,
marked as such. ASR focuses traffic management resources precisely
including firewalls, mail, news, chat, and Lightweight Directory
where needed.
Access Protocol (LDAP).
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The Cisco CSS 11500 also provides a complete solution for building
(API), Simple Network Management Protocol (SNMP), Remote
and provisioning Internet-scale global content distribution and
Monitoring (RMON), and log files. Effective management tools
delivery. Whereas local load-balancing features determine the best
reduce the ongoing cost of operating a business-critical Web site.
device within a data center, global load-balancing functions choose
the best data center in the Internet to service requests.
Cisco CSS 11500 Series Content Services Switch:
The Cisco CSS 11500 performs comprehensive resource verification
Chassis and Modules
before routing user requests, ensuring that they are directed to the
The Cisco CSS 11500 Series Content Services Switch includes three
location that has the best response time and the least load for the
models:
requested content. Cisco supports global load balancing through
• A one-rack unit, fixed-configuration Cisco CSS 11501 with
redirection based on both Domain Name System (DNS) and HTTP.
The DNS mechanism is fast and scalable; the HTTP method
provides the highest degree of control.
Site and System Security
The Cisco CSS 11500 with Cisco WebNS Software ensures high
levels of security without compromising site performance. The
Cisco CSS 11500 provides stateful, content-based access control,
and supports security policies based on any combination of source
address, destination address, protocol, TCP port, or URL. The
Cisco CSS 11500 monitors start-to-finish Web transaction activity
and guards against denial-of-service (DoS) attacks such as SYN
6-Gbps aggregate throughput
• A two-rack unit, three-slot Cisco CSS 11503 with 20-Gbps
aggregate throughput
• A five-rack unit, six-slot Cisco CSS 11506 with 40-Gbps
aggregate throughput
The Cisco CSS 11501 supports eight 10/100 Ethernet ports and one
Gigabit Ethernet port though an optional small-form factor,
pluggable gigabit interface converter (SFP GBIC). The Cisco CSS
11501 also features a console port, an Ethernet port for
management and two PCMCIA slots that hold up to two 256-MB
Flash memory disks, up to two 512-MB hard disks, or one of each.
floods, ping floods, “smurfs,” and any other undesirable connection
The Cisco CSS 11503 and Cisco CSS 11506 are both modular
attempts. Wire-speed Network Address Translation (NAT) protects
platforms with interchangeable modules. The Cisco CSS 11503 and
real server IP addresses.
Cisco CSS 11506 may also share memory, disks and GBICs. The
For additional security, the Cisco CSS 11500 intelligently directs
traffic across multiple firewalls. By load balancing firewalls, the
Cisco CSS 11501 has fixed memory and does support the same disks
and SFP GBICs as the other two models.
Cisco CSS 11500 eliminates performance bottlenecks and single
The Cisco CSS 11506 requires at least one switch control module
points of failure that result in system downtime, a situation that can
(SCM) and may be configured with a second in standby mode. With
close off the connection to the network and disrupt e-commerce
the required SCM in one slot, the Cisco CSS 11506 has five
purchases or other mission-critical transactions.
additional slots supporting any combination of I/O, SSL, or session
accelerator modules. The Cisco CSS 11503 requires a SCM and
Manage Through Simple GUIs or
accommodates any two of the other optional modules.
Sophisticated Tools
The Cisco CSS 11506 supports not only redundancy in switch
Effective management tools reduce the ongoing cost of operating a
control modules but also redundant power supplies and redundant
business-critical Web site. The Cisco CSS 11500 with WebNS
switch modules (20 Gbps each). All SCMs support redundant
supports a wide range of management tools that offer simplicity,
disk drives.
security, and flexibility. For configuration, administrators have a
All modules participate in flow setup, but they differ primarily in
®
choice of a Cisco IOS Software-like command-line interface (CLI)
control functions, performance, SSL capabilities, and I/O. Each
or an intuitive, embedded graphical user interface (GUI). For large
Cisco CSS 11500 Module consists of one high-speed MIPS RISC
networks, the Cisco CSS 11500 may be managed through enterprise
processor for flow setup, one network processor for flow
management systems such as CiscoWorks CiscoView and
forwarding, one classification engine for accelerated lookups in
tiered-access tools such as the Cisco Hosting Solutions Engine. For
bridge/access control list (ACL) tables, and up to 288 MB of
integration with customized management systems or even user
RDRAM.
applications requiring network interaction, the Cisco CSS 11500
offers an Extensible Markup Language (XML)-based,
programmatic management application programming interface
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Switch Control Module for the Cisco CSS 11500 Content Services Switch
The Cisco CSS 11500 Switch Control Module not only governs the entire system, it also contributes to I/O density
and flow performance. The SCM comes standard with 2-Gigabit Ethernet ports—supporting small-form factor,
pluggable gigabit interface converters (SFP GBICs)—and has a console port and Ethernet port for management. The
SCM also features two PCMCIA slots that hold up to two 256-MB Flash memory disks, up to two 512-MB hard
disks, or one of each.
SSL Module for the Cisco CSS 11500 Content Services Switch
The Cisco CSS 11500 SSL Module is the ideal solution for handling high volumes of SSL transactions that occupy
today’s e-business data centers. The module integrates state-of-the-art SSL processors into the leading content
switching technology of Cisco WebNS. In addition to superior price performance, the SSL module simplifies the
management of digital certificates and offers new possibilities in optimizing the switch-to-server architecture for
security and performance.
I/O Modules for the Cisco CSS 11500 Content Services Switch
The Cisco CSS 11500 I/O modules deliver port density and flow performance. The product line supports three types
of I/O modules:
• Two-port Gigabit Ethernet
• Sixteen-port Fast Ethernet
• Eight-port Fast Ethernet
The Fast Ethernet ports are 10/100BASE-TX with standard RJ-45 connectors, whereas the Gigabit Ethernet ports
require small-form factor GBICs (1000BASE-SX or 1000BASE-LX).
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Session Accelerator Module for the Cisco CSS 11500 Content Services Switch
The session accelerator module is a cost-effective way to add flow performance when additional connectivity is not
required. Using the same flow setup and forwarding processors as the I/O modules, it provides the flexibility to
optimize the system for port density and performance. Table 1 gives the features of the Cisco CSS 11500 models.
Table 1 Cisco CSS 11500 Models: Quick Look
Cisco CSS11501
Cisco CSS11503
Cisco CSS11506
Module Slots
0 (Fixed Configuration)
3
6
Included in Base
Configuration
Switch Control with 8
10/100 Ethernet
and 1 Gigabit Ethernet
(GBIC) Port
Switch Control Module
with 2 Gigabit Ethernet
(GBIC) Ports
Switch Control Module
with 2 Gigabit Ethernet
(GBIC) Ports
Maximum Gigabit
Ethernet Ports
1
6
12
Maximum 10/100
Ethernet Ports
8
32
80
SSL Termination
No
Yes
Yes
2-port Gigabit Ethernet
I/O Module
Maximum of 2
Maximum of 5
16-port 10/100 Ethernet I/O
Maximum of 2
Maximum of 5
8-port 10/100 Ethernet I/O
Maximum of 2
Maximum of 5
SSL Modules
Maximum of 2
Maximum of 4
Session Accelerator
Modules
Maximum of 2
Maximum of 5
• Active-active Layer 5
Adaptive Session
Redundancy
• Active-active Layer 5
Adaptive Session
Redundancy
• Active-active Layer 5
Adaptive Session
Redundancy
• VIP 1 redundancy
• VIP redundancy
• VIP redundancy
Redundancy Features
• Active-standby SCM
• Redundant switch fabric
module
• Redundant power
supplies
Height
1.75 in. (1 rack unit)
3.5 in. (2 rack units)
8.75 in. (5 rack units)
Bandwidth Aggregate
6 Gbps
20 Gbps
40 Gbps
Storage Options
512-MB hard disk or
256-MB Flash memory
disk
512-MB hard disk or
256-MB Flash memory
disk
512-MB hard disk or
256-MB Flash memory
disk
Power
Integrated AC
Integrated AC or DC
Up to 3 AC or 3 DC
1. Virtual Internet Protocol (Address)
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Ordering Information
Table 2 lists the product numbers and their descriptions for the Cisco CSS 11500 Series.
Table 2 Cisco CSS 11500 Series Product Numbers
Product Number
Description
CSS11506-2AC
Cisco 11506 Content Services Switch including SCM with 2 Gigabit Ethernet ports, hard disk,
2 switch modules, 2 AC power supplies, and a fan (requires SFP GBICs)
CSS11506-2DC
Cisco 11506 Content Services Switch including SCM with 2 Gigabit Ethernet ports, hard disk,
2 switch modules, 2 DC power supplies, and a fan (requires SFP GBICs)
CSS11503-AC
Cisco 11503 Content Services Switch including SCM with 2 Gigabit Ethernet ports, hard disk,
and integrated AC power supply, integrated fan, and integrated switch module
(requires SFP GBICs)
CSS11503-DC
Cisco 11503 Content Services Switch including SCM with 2 Gigabit Ethernet ports, hard disk,
and integrated DC power supply, integrated fan, and integrated switch module
(requires SFP GBICs)
CSS11501
Cisco 11501 Content Services Switch including 8 10/100 Ethernet and 1 Gigabit Ethernet port,
hard disk, and integrated AC power supply and integrated fan (optional SFP GBIC)
CSS5-SCM-2GE
Cisco CSS 11500 System Control Module with 2 Gigabit Ethernet ports and hard disk
(requires SFP GBICs)
CSS5-IOM-8FE
Cisco CSS 11500 Fast Ethernet I/O Module: 8-port TX
CSS5-IOM-16FE
Cisco CSS 11500 Fast Ethernet I/O Module: 16-port TX
CSS5-IOM-2GE
Cisco CSS 11500 Gigabit Ethernet I/O Module: 2-port (requires SFP GBICs)
CSS5-SAM
Cisco CSS 11500 Session Accelerator Module
CSS5-SSL
Cisco CSS 11500 SSL Module
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Cisco CSS 11500 Specifications
Table 3 lists the specifications for the Cisco CSS 11500 Series.
Table 3 Cisco CSS 11500 Specification
Cisco CSS 11500 Specifications
Key System Parameters* (*For WebNS Version 7.10)
Maximum supported keepalives: 2048
Maximum concurrent connections per I/O module: 200,000 with
256-MB RDRAM
Cisco CSS 11506
• Requires WebNS 5.10 or later versions
• One slot for SCM
• Rack Units: 5
• Five slots for additional modules
• Two slots for switch modules
• Aggregate switch throughput: 40 Gbps
• Dimensions (Height x Width x Depth):
8.75 x 17.0 x 12.5 in. (22.2 x 43.2 x 31.8 cm)
Cisco CSS 11503
• Requires WebNS 5.10 or later versions
• One SCM slot
• Rack Units: 2
• Two slots for additional modules
• Integrated switch fabric module
• Aggregate switch throughput: 20 Gbps
• Dimensions (Height x Width x Depth):
3.5 x 17.0 x 12.5 in. (8.9 x 43.2 x 31.8 cm)
Cisco CSS 11501
• Requires WebNS 7.10 or later versions
• Fixed configuration with 8 10/100 Ethernet and 1 Gigabit Ethernet (GBIC) Port
• Rack Units: 1
• Aggregate switch throughput: 6 Gbps
• Dimensions (Height x Width x Depth):
1.72 x 17.3 x 18.1 in. (4.4 x 43.9 x 46.0 cm)
Key Cisco WebNS Features
The Cisco CSS 11500 supports all WebNS 7.1 features, including:
• Full URL parsing
• HTTP (1.0, 1.1)
• Sticky cookie insertion
• All TCP services, UDP, and SSL
• Content policy ACLs on all HTTP headers
• VLAN 802.1Q
• DoS protection against SYN floods and other Layer 4 attacks
• Management: Secure Shell Protocol (SSH), SNMP, SSL browser-based interface,
embedded GUI
• Integrated global load balancing with HTTP and DNS-based redirection
• Routing Information Protocol (RIP) versions 1 and 2, Open Shortest Path First
(OSPF)
• Server/node operating system compatibility: Any TCP/IP OS, including Windows
XP, Windows 2000, Windows NT, Windows 98, Windows 95, all UNIX platforms,
LINUX, and Mac OS
• Dynamic content support: Active Server Pages (ASP), Visual Basic Script, ActiveX,
Java, Virtual Reality Markup Language (VRML), Common Gateway Interface (CGI),
CoolTalk, NetMeeting, RealAudio, RealVideo, NetShow, QuickTime, PointCast, Any
HTTP Encapsulated Data
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Table 3 Cisco CSS 11500 Specification (Continued)
Cisco CSS 11500 Specifications
SSL* (*For Cisco WebNS Version 7.10)
• Full and transparent proxy modes
• SSL session reuse
• Number of digital certificates: 256
• Clock with battery backup (on Switch Control Module)
• Key sizes 512, 768, 1024, and 2048
• Security protocols SSL 3.0 and Transport Layer Security (TLS) 1.0
• Importing certificates: Apache, Microsoft IIS, Netscape
• PCKS no. 12: Personal information exchange syntax standard
• Security algorithms Rivest, Shamir, Adelman (RSA), Digital Encryption Standard
(DES),
• Triple DES (3DES), and RC4
• Encryption (3DES) of certificates and keys in configuration file
Environmental
Temperature
Operating: 32° to 104°F (0° to 40°C)
Nonoperating: –4° to 149°F (–20° to 65°C)
Humidity
Operating: 10 to 90% noncondensing
Nonoperating: up to 95% noncondensing
Altitude
Operating: 0 to 10,000 ft (0 to 3000 m)
Nonoperating: 0 to 15,000 ft (0 to 4570 m)
Electrical
AC
DC
• 100–240 VAC input, 50–60 Hz
• –46 to –60 VDC input
• Cisco CSS 11506 current rating: 9A
• Cisco CSS 11506 current rating: 9A
• Cisco CSS 11503 current rating: 5A
• Cisco CSS 11503 current rating: 5A
• Cisco CSS 11501 current rating: 1.6A
Heat Dissipation
Cisco CSS 11506 maximum
• AC: 860VA@2936 Btu/hr
• DC: 860VA@2936 Btu/hr
Cisco CSS 11503 maximum
• AC: 430VA@1468 Btu/hr
• DC: 430VA@1468 Btu/hr
Cisco CSS 11501 maximum
• AC: 150VA@512 Btu/hr
Acoustic Noise
70 dB maximum
Shock
Operating (half sine): 21 in./sec (0.53 m/sec)
Nonoperating (trapezoidal pulse): 20G1, 52 in./sec (1.32 m/sec)
1G is a value of acceleration, where G equals 32.17 ft/sec** (9.81 m/sec**)
Vibration
Operating: 0.35 Grms from 3 to 500 Hz
(Grms is the root mean square value of acceleration)
Nonoperating: 1.0 Grms from 3 to 500 Hz
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Table 3 Cisco CSS 11500 Specification (Continued)
Cisco CSS 11500 Specifications
Weight
Cisco CSS 11506
• Shipping: 68.65 lb
• Standalone: 57.7 lb
Cisco CSS 11503
• Shipping: 42.85 lb
• Standalone: 33.3 lb
Cisco CSS 11501
• Shipping: 21.5 lb
• Standalone: 18.0 lb
Safety Certification
CSA-22.2 No. 950-UL1950
ACA TS001
EN60950/IEC60950
AS/NZS 3260
EN60825/IEC60825
CSA-22.2 No. 950-UL1950
Electromagnetic compliance (emissions)
FCC CFR 47 Part 15 Class A
FCC CFR 47 Part 15.109 Class B
ICES-003 Class A
CISPR 22 EN55022 Class B (to 1 GHz)
CISPR 22 EN55022 Class A
EN61000-3-2/IEC-1000-3-2 (power line harmonics)
EN61000-3-2/IEC-1000-3-2 (power line harmonics)
Electromagnetic compliance (emissions)
VCCI V-3/01.4 Class B (to 1GHz)
VCCI Class A
ICES-003 Class B
AS/NZS 3548 Class A
AS/NZS3548 Class B
Immunity
EN300386 (EMC for network equipment)
EN61000-4-8/IEC-1000-4-8 (Power frequency magnetic field immunity)
EN61000-4-3/IEC-1000-4-2 (electrostatic discharge [ESD])
EN61000-4-11/IEC-1000-4-11 (voltage dips and sags)
EN61000-4-3/IEC-1000-4-3 (radiated immunity)
ETS-300386
EN61000-4/IEC-1000-4-4 (EFT)
FCC Class A Compliance Notice (United States)
EN61000-4-5/IEC-1000-4-5 (surge)
ICES-003 Class A Compliance Notice (Canada)
EN61000-4-6/IEC-1000-4-6 (low-frequency conducted immunity)
VCCI Class A Compliance Notice (Japan)
1. Nonoperating (trapezoidal pulse): 20G 1, 52 in./sec (1.32 m/sec) 1 G is a value of acceleration, where G equals 32.17 ft/sec** (9.81 m/sec**)
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Corporate Headquarters
Cisco Systems, Inc.
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San Jose, CA 95134-1706
USA
www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 526-4100
European Headquarters
Cisco Systems Europe
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92782 Issy-les-Moulineaux
Cedex 9
France
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Tel: 33 1 58 04 60 00
Fax: 33 1 58 04 61 00
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
www.cisco.com
Tel: 408 526-7660
Fax: 408 527-0883
Asia Pacific Headquarters
Cisco Systems, Inc.
Capital Tower
168 Robinson Road
#22-01 to #29-01
Singapore 068912
www.cisco.com
Tel: +65 317 7777
Fax: +65 317 7799
Cisco Systems has more than 200 offices in the following countries and regions. Addresses, phone numbers, and fax numbers are listed on the
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