Small and medium businesses are faced with different challenges than larger enterprises.
When it comes to networking equipment, they are looking for:
• Minimal time for set-up
• Plug-and-play capability
• Opportunities to improve employee productivity
• Potential for gaining competitive advantage
• Ability to save money
Nortel Networks BayStack* 425 Switches have been designed to address the needs of small
and medium customers. The switches help save money by allowing devices to be connected
at either 10 Mbps or 100 Mbps without needing newer switches to accommodate different
speeds. In addition, the switches are scalable and provide small and medium businesses (SMBs)
with the comfort of knowing that their investment is protected as their company grows. Easy
Web-based management features and plug-and-play stacking ports will save customers significant time in setting up the switches. Also, the switches’ ease-of-use features require minimal
technical expertise to configure them. For more details on Nortel Networks SMB solutions,
please visit www.nortelnetworks.com/smb.
The BayStack 425 Switches are stackable 10/100 Mbps Layer 2 Ethernet switches featuring
easy configuration and stackability, flexible choices for high-speed uplinks, and Web-based
management from a Web browser. The BayStack 425 Switches have been architected to be
Layer 3 and DiffServ capable via a software upgrade in the future.
Product Brief
Nortel Networks
BayStack 425 Switches
Highlights
• Cost-effective stackable switching for
small and medium enterprise customers
• Up to 384 10/100 Mbps ports for desktop
switching in an 8-rack unit high design
• Plug-and-play stacking with built-in
stacking ports
• Easy to use
• Flexible combo uplink ports for wiring
closet or backbone connections
• Resilient uplink connectivity for
minimal network downtime
• Easy Web-based management
• 1U high compact design with low power
consumption
• Flexible stacking across BayStack 425 and
420 Switches—a stack is managed as a
single entity with a single IP address
stackable
switching
Combining high port density with low per-port pricing for a cost-effective switching solution,
the BayStack 425 Switches are designed for small to medium-sized businesses and branch
offices that consider price to be a predominant decision factor when acquiring advanced
networking functionality such as:
• High-density, cost-effective stackable switching
• Flexible combo uplink port options
• Easy set-up
The BayStack 425 Switches are available in two models—the BayStack 425-24T Switch
(Figure 1) and the BayStack 425-48T Switch (Figure 2).
The BayStack 425-24T Switch has 24 10BASE-T/100BASE-TX autosensing ports, 2 flexible
combo uplink ports, and built-in stacking ports. It can be used standalone or in a stack of up
to 8 switches that can be easily managed as a single unit, to get up to 192 10/100 Mbps ports.
The BayStack 425-48T can also be used standalone or in a stack of up to 8 switches for up to
384 10/100 Mbps ports based on a future software release. Advanced features such as
Distributed Multi-Link Trunking, IGMP Snooping, VLAN Trunking, and flexible management tools help efficiently manage the network traffic. BayStack 425 Switches are ideal stackable switching solutions for small and medium businesses needing performance and scalability
at cost-effective prices (Figure 3).
Features and benefits
Full autosensing on every port
Every UTP port on the BayStack 425 Switches is equipped with autosensing technology to
automatically detect and support the speed and mode of a connected device. The ports determine whether a connected device is operating at 10 Mbps or 100 Mbps, and automatically
adjust to the optimal speed. Each of the switched ports can also automatically detect and
support full-duplex connections to servers, power-user end stations or other switches, as well
as half-duplex connections to legacy NICs or hubs.
High-density stacking architecture
The plug-and-play cascade stacking architecture permits connection of up to 8 BayStack
425 Switches with stack cables (Figure 4) into
a single manageable unit of up to 192 10/100
Mbps ports. With the BayStack 425-48T
Switch, up to 384 10/100 Mbps ports can be
achieved in a stack of eight units. Two built-in
Gigabit stacking ports in the rear of the switch
provide easy connections to other members
of the stack; there is no need to purchase a
cascade module or use an uplink port for
stacking. This scalable architecture protects
the network investment, as business needs
change or grow, enabling a cost-effective “buy
as you grow” strategy. When a BayStack 42524T Switch is being stacked, one of the combo
uplink ports (port 26) is turned off. When the
stacking feature becomes available for BayStack
425-48T, combo port 50 will be turned off.
Note that the BayStack 425-48T Switch cannot
be stacked with itself or with BayStack 425-24T
and BayStack 420-24T Switches. BayStack
425-48T Switch is standalone only; it will be
Figure 1. The BayStack 425-24T switch
Figure 2. The BayStack 425-48T switch
Figure 3. Small/medium
business solution
Distributed
Multi-Link Trunking
Multi-Link
Trunking
Floor 3
Floor 2
Network
Center
BayStack 425 Switches
BayStack 425 Switches
Passport 1612G Switch
10/100 Mbps
connections
Servers
2
stackable with itself and BayStack 425-24T Switches in a future software release. Currently,
BayStack 425-24T and BayStack 420-24T Switches can be stacked in any combination up to a
maximum of eight units.
Flexible high-speed uplink ports
The BayStack 425 Switches offer two built-in combo uplink ports (ports 25 and 26 of BayStack
425-24T and ports 49 and 50 of the BayStack 425-48T) in the front of the unit that provide
high-speed connection to backbone switches or servers. Each combo port consists of one SFP
(SmallForm Factor Pluggable) GBIC (Gigabit Interface Converter) uplink port and one
10/100/1000BASE-T port (Figure 5). Each combo port autosenses between the SFP and the
10/100/1000BASE-T port. When the stacking ports are being used for stacking on the
BayStack 425-24T Switch, combo port 26 is automatically turned off. When the stacking
feature becomes available for BayStack 425-48T, combo port 50 will be automatically turned
off. In a stack of eight BayStack 425 Switches, up to 8 uplink ports can be used.
Wire-speed throughput
A 16 Gigabit per second (Gbps) switching fabric and ASICS support full 802.1d-compliant
MAC Layer frame forwarding and filtering across all ports at wire-speed performance. The
BayStack 425-24T Switch has a peak forwarding rate of 6.6 million packets per second and the
BayStack 425-48T Switch has a peak forwarding rate of 10.1 million packets per second.
BoSS (BayStack operating system Switching Software)
BoSS for BayStack 425 Switches is a single software image that is used for BayStack 425-24T,
BayStack 420-24T, and BayStack 425-48T switches. Future versions provide new features
and will be available for free for the lifetime of the
switches. Other BayStack switches support a different
version of BoSS.
BoSS version 3.1 is currently available from
www.nortelnetworks.com/support and adds
support for the following features:
• Support for BayStack 425-48T
• 255 VLANs support (BayStack 425 only)
• Custom Auto Negotiation Advertisements (CANA)
Flexible stacking across BayStack 425 and 420 Switches
The BayStack 425-24T Switch can be stacked with the BayStack 420-24T Switch. A maximum
of eight switches can be stacked together in any combination. BayStack 425-48T Switch will be
able to stack with BayStack 425-24T Switch in a future software release.
Simplified network operations
BoSS simplifies network operations by reducing the number of steps required for switch software updates. With BoSS, only a single image needs to be downloaded from Nortel Networks
Web site for all BayStack 425 and 420 Switches. Loading the image to different switches is also
considerably simplified. The image is loaded only to the base unit of the stack, which automatically loads it to other switches in the stack.
Multi-Link Trunking
Multi-Link Trunking (MLT) enables grouping of links between a BayStack 425 Switch and
another switch or a server to provide greater bandwidth with active redundant links. Nortel
Networks unique Distributed Multi-Link Trunking (DMLT) feature allows trunked ports to
span multiple units of the stack for redundant connectivity to mission-critical servers and the
network center (Figure 4). The BayStack 425 Switches support up to 6 MLTs per switch or
stack with up to 4 ports per MLT.
3
Figure 4. The plug-and-play
architecture allows easy expansion,
and management as a single unit
Combo
Port 26
Combo
Port 25
Figure 5. Each combo port autosenses between 1 SFP uplink port
and 1 10/100/1000BASE-T port
VLAN support
Up to 255 port-based VLANs can be established for each switch, to extend the broadcast
domain and segment network traffic for higher network efficiency. The 255 VLANs can be on a
standalone switch or across a stack. IEEE 802.1Q VLAN Trunking is supported on every port of
the switch, allowing efficient means of transporting broadcast domains across switches.
VLANs reduce administration costs by simplifying network moves, adds, and changes.
Enterprise-sized MAC address table
The BayStack 425 Switches support up to 8,000 MAC addresses to support ample scalability
for growing networks to accommodate many attached devices and workgroups connected to
each switch.
IGMP snooping
The BayStack 425 Switches feature IP Multicast support by examining (‘snooping’) all
Internet Group Multicast Protocol (IGMP) traffic in hardware at line rate, and filtering out
(dropping) unwanted IGMP packets such as PING from disrupting the network or endstation performance.
Nortel Networks Command Line Interface (NNCLI)
The NNCLI is used to automate general management and configuration of BayStack 425
Switches. The NNCLI is used through a Telnet session or through the serial port on the
console.
ASCII configuration file
BayStack 425 Switches can download a user-editable ASCII configuration file from a Trivial
File Transfer Protocol (TFTP) server. The ASCII configuration file can be loaded automatically at boot time or on-demand using the management systems (console menus or CLI).
Once downloaded, the configuration file automatically configures the switch or stack
according to the NNCLI commands in the file. This feature allows the flexibility of creating
command configuration files that can be used on several switches or stacks with minor
modifications.
ASCII configuration file generator
This feature works by reading the current configuration on the switch and generating the
appropriate NNCLI commands to recreate that configuration. Basically, it provides the ability
to view and store the switch configuration in a text, editable format. The generated file can be
stored on an external server and also used to restore the switch configuration.
IEEE 802.1p priority queuing
802.1p priority queuing is standards-based and enables priority to the order in which the
switch forwards packets on a per-port basis. For example, if messages from a specific segment
are crucial to the network, the switch port connected to that segment can be set to a higher
priority level. Up to four queues can be set on the BayStack 425 Switch with IEEE 802.1p.
Spanning Tree Protocol
Built-in support for Spanning Tree Protocol (IEEE 802.1D) detects and eliminates logical loops
in the network. When multiple paths exist, the switch will automatically place some ports on
standby to form a network with the most efficient traffic pathways, avoiding the continual
looping of frames.
Custom Auto Negotiation Advertisements (CANA)
This feature enables the network manager to tune the capabilities that a particular Ethernet
port can advertise via autonegotiation. The capabilities include half-duplex and full-duplex
modes with speeds of 10, 100, and 1000 Mbps. Autonegotiated Ethernet ports establish a
4
connection based upon the highest common capabilities. This feature is implemented
by using CLI commands and saves the network manager from having to go to each workstation and switch to configure a "fixed" speed.
Network management
Web-based management
Web-based network management makes managing the BayStack 425 Switch stack easy.
Summary, configuration, fault, statistics, application, administration, and support pages can
be provided for the entire stack. Real-time sampling provides up-to-date LED statistical
information for stacked units. The Web interface also allows for static configuration of
numerous parameters of the device. Plus, the stack can be managed as a single entity with one
IP address.
On-box management
Network management begins with the device. BayStack 425 Switches support four groups
of Remote Monitoring (RMON) on all ports and are SNMPv3 compliant. The four
groups of RMON are Alarms, Events, History, and Statistics. RMON2 support is achievable via port mirroring and the use of an external probe. The SNMP agent software resides
in the switch and uses the information it collects to provide management for all ports in the
stack providing comprehensive network monitoring capabilities.
Configuration management
The process of configuration begins with a single device but finishes across multiple
devices. Java™ Device Manager is the device configuration tool for those functions that
require communicating with a single device. It uses a common user interface and workflow
that supports many Nortel Networks Ethernet switches. This commonality allows the
network manager to become familiar with one tool instead of multiple tools. Optivity
Switch Manager* (OSM) is a Java-based, real-time, configuration management application
for Nortel Networks Ethernet products including BayStack 425 Switches. It enables
network managers to discover, view, and configure more than 500 network devices and
their physical links on a topology map. Configuration is stored in NVRAM (Non-Volatile
Random Access Memory).
Fault management and resolution
With Optivity Network Management System
(ONMS), the network manager has quick access
to the information required to manage and
isolate all network events on BayStack 425
switches. Tools, such as Physical Topology View,
inform the network manager of how a particular
event is affecting the physical connectivity
within the network. The ‘End Node Locate’ tool
provides the ability to locate a failing end node
and, with one mouse click, provides access to
the RMON statistics for the failing Ethernet
port supporting that end node. These solutions
provide visual and statistical tools necessary to
quickly resolve network events or to manage
performance in real-time. The BayStack 425
Switches support “syslog” capability that helps
in troubleshooting network issues.
5
Figure 6. Distributed Multi-Link
Trunking (DMLT) across a stack
Server
BayStack 425 Switches
Passport* 1612G Switch
DMLT across the stack with
load-balancing and fail-over
protection for uninterrupted
access to servers or the
network center
Advanced management features
BootP and TFTP support allows centralized switch IP address assignment, software upgrades,
and SNMP agent updates over the network. The security feature uses the Remote
Authentication Dial-In User Services (RADIUS) protocol to authenticate local console and
TELNET logins.
Enhanced security
The BayStack 425 Switches offer security features including Secure Shell (SSH) version 2, IEEE
802.1x based security, [also known as Extensible Authentication Protocol (EAP)], assignment of
proper VLAN and priority, Simple Network Management Protocol (SNMPv3), MAC-address
based security, and RADIUS authentication.
SSHv2 supports strong authentication and encrypted communications. It allows a user
to log into the switch from an SSH client and perform a secure Telnet session using CLI
commands. This feature is ideal for security conscious customers such as federal governments.
For added security, BayStack 425 Switches support the 802.1x-based security feature EAP.
Based on the IEEE 802.1x standard, EAP limits access to the network based on user credentials. A user is required to “login” to the network using a username/password; the user database
is maintained on the authentication server (not the switch).
EAP prevents network connectivity without password authorization for added security and
control in physically non-secure areas. It is used where the network is not 100 percent physically secure or where physical security needs enhancement—for example, banks, trading
rooms, or classroom training facilities. EAP supports client access to the network and interoperates with Microsoft
™
Windows XP and other compliant 802.1x clients.
SNMPv3 provides user authentication and data encryption for
higher security. It also offers secure configuration and monitoring.
BaySecure MAC-address based security allows authentication of
all access, not only to the switches for management and configurations, but also access to the infrastructure through these switches.
This software feature limits access to only network authorized and
trusted personnel, including full tracking of network connections.
With BaySecure, network access is granted or denied via proper
MAC-address identification (up to a maximum of 448).
The RADIUS-based security feature allows you to set up network
access control using the RADIUS security protocol to authenticate local console and Telnet logins.
Port mirroring
The port mirroring feature (sometimes referred to as ‘conversation steering’) allows the
network administrator to designate a single switch port as a traffic monitor for a specified port.
Port mirroring copies packets flowing into a specified port and sends the replicated data to the
mirrored port for in-depth analysis of switched traffic patterns to trouble-shoot problems and
optimize network configurations. Additionally, an external probe device can be attached to
the designated monitor port.
6
User interface push-button
The user interface push-button on the front panel is provided for ease of use in configuring the unit. It can be used for the purpose of base unit selection and for resetting the
unit or the stack.
Common look and feel
All BayStack switches, including the BayStack 425, have a common “look and feel” which
reduces training costs. This allows the switches to be managed in a similar fashion via a
broad set of management tools. These tools include Web, Java-based Device Manager
(JDM), Command Line Interface (CLI), menus, Optivity Network Management System
(ONMS), and Optivity Switch Manager (OSM).
Auto MDI/MDI-X
BayStack 425 Switches can be connected to a hub or another switch quickly and costeffectively. Instead of needing a crossover cable for this purpose, with the BayStack 425
Switch you can use either a crossover or straight through cable. When a cable is connected
to one of the 10/100 ports on the switch, the switch port automatically detects the signal
on the cable and configures itself. This feature eliminates the need for an MDI/MDI-X
port; any port may be used for connection to a hub or switch.
Recovery configuration file support
The configuration file feature allows for storing of switch or stack configuration parameters
on a TFTP server. Configuration parameters can be retrieved automatically to configure a
replacement switch or stack with the same configuration. For new installations or when a
switch has failed, this feature saves time in reconfiguring another switch or stack.
Power and space savings
Low power consumption of 46W results in lower operating costs. Compact one-rack unit
high design allows for significant space and cost savings in the wiring closet.
LED indicators
The LED indicators on the front panel make it easy to monitor the switch and port status
and help in isolating and diagnosing switch problems.
Port naming alias
This feature gives the ability to name, or specify a text string for, each port. It basically
provides easy identification of the connected users.
Destination Address (DA) filtering
DA filtering allows the use of the MAC address-based security feature (BaySecure) to
configure the switch to drop all packets with specified MAC DAs. You can enter up to
10 specific MAC DAs you want filtered.
7
Summary
With more than 100 years in telecommunications, Nortel Networks is uniquely
positioned to help your business reduce cost by combining voice and data into an
integrated system. Why take a chance on a vendor that only understands part of
the equation? Let us show you how the BayStack 425 Switches, along with other
Nortel Networks products, can increase your profitability, streamline your business
operations, increase productivity, and help you gain the competitive edge.
Physical specifications
BayStack 425-24T Switch:
Weight: 3 kg (6.61 lb)
Height: 4.37 cm (1.72 in)
Width: 43.82 cm (17.25 in)
Depth: 22.91 cm (9.02 in)
BayStack 425-48T Switch:
Weight: 3.1 kg (6.83 lb)
Height: 4.37 cm (1.72 in)
Width: 43.82 cm (17.25 in)
Depth: 22.91 cm (9.02 in)
Performance
Switch fabric bandwidth—16 Gbps
Frame forwarding rate—
BayStack 425-24T 6.6 million packets per second (Mpps)
BayStack 425-48T 10.1 million packets per second (Mpps)
Switched 10 Mbps forwarding rate—14,880 pps maximum
Switched 100 Mbps forwarding rate—148,810 pps maximum
Switched 1000 Mbps forwarding rate—1,488,810 pps maximum
Memory—32MB memory architecture shared by all ports
4MB Flash Memory
16MB SDRAM
Address database size—8,000 entries at line rate
Addressing—48-bit MAC address
Frame length—64 to 1518 bytes (IEEE 802.1Q Untagged)
68 to 1522 bytes (IEEE 802.1Q Tagged)
Interface options
10BASE-T/100BASE-TX
RJ-45 (8-pin modular) connectors for Auto MDI/MDI-X
interface with auto-polarity
The BayStack 425 Switches support the following SFP GBICs:
1000BASE-SX
Uses short wavelength 850 nm MTRJ or LC type fiber optic
connectors to connect devices over multimode (275m, 62.5um
core or 550m, 50.0um core) fiber optic cable.
1000BASE-LX
Uses long wavelength 1300nm duplex LC type fiber optic
connector to connect devices over single mode (10km, 9um
core) fiber optic cable.
Network protocol and standards compatibility
• IEEE 802.3 10BASE-T (ISO/IEC 8802-3, Clause 14)
• IEEE 802.3u 100BASE-TX (ISO/IEC 8802-3, Clause 25)
• IEEE 802.3u Autonegotiation on Twisted Pair (ISO/IEC 8802-3,
Clause 28)
• IEEE 802.3x (Flow Control on the Gigabit Uplink ports)
• IEEE 802.3z Gigabit
• IEEE 802.1d MAC Bridges (ISO/IEC 10038)
• IEEE 802.1p (Prioritizing)
• IEEE 802.1Q (VLAN Tagging)
• IEEE 802.1D (Spanning Tree Protocol)
• IEEE 802.3ad (manual/static)
• IEEE 802.3ad (LACP)
†
• IEEE 802.1s
†
• IEEE 802.1w
†
RFC support
• RFC 1213 (MIB-II); RFC 1493 (Bridge MIB); RFC 2863 (Interfaces
Group MIB);
• RFC 2665 (Ethernet MIB); RFC 2737 (Entity MIBv2); RFC 2819
(RMON MIB);
• RFC 1757 (RMON); RFC 1271 (RMON); RFC 1157 (SNMP); RFC 2570
(SNMPv3);
• RFC 2571 (SNMP Frameworks); RFC 2573 (SNMPv3 Applications);
• RFC 2574 (SNMPv3 USM); RFC 2575 (SNMPv3 VACM); RFC 2576
(SNMPv3);
• RFC 2572 (SNMP Message Processing; RFC 791 (IP); RFC 792
(ICMP); RFC 793 (TCP); RFC 783 (TFTP); RFC 826 (ARP); RFC 768
(UDP); RFC 854 (TELNET); RFC951 (Bootp); RFC 2236 (IGMPv2);
RFC 1112 (IGMPv1); RFC 1945 (HTTP v1.0); RFC 2138 (RADIUS); RFC
894 (IP over Ethernet); RFC 2674 (Q MIB)
Environmental
Operating temperature: 0° to 40°C (32° to 104°F)
Storage temperature: -25° to 70°C (-13° to 158°F)
Operating humidity: 10 to 85% maximum relative humidity,
noncondensing
Storage humidity: 10 to 95% maximum relative humidity,
noncondensing
Operating altitude: Up to 3,024 m (10,000 ft.) above sea
level
Storage altitude: Up to 3,024 m (10,000 ft.) above sea
level
Electrical
Input voltage (AC version): 100 to 240 VAC @ 47 to 63 Hz
Input power consumption (AC version): 46 W maximum
Input current (AC version): 2 A @ 120 VAC, 1 A @ 240 VAC
Maximum thermal output: 75 BTU/hour
Safety agency approvals
• UL EN60950 (UL 1950 and CSA 22.2 No. 60950)
• IEC 60950/EN60950, CB report and certificate with all
national deviations
• C22.2 No. 950 (CUL) with all national deviations
• UL-94-V1 flammability requirements for PC board
• NOM-019
Electromagnetic emissions
Meets the following standards:
• US: CFR47, Part 15, Subpart B, Class A
• Canada: ICES-003, Issue 3, Class A
• Australia/New Zealand. AS/NZS 3548:1995, Class A,
A1:1997/A2:1997 class A
• Japan: VCCI-V-3/02.04 class A
• Taiwan: CNS 13438, Class A
• Europe: EN55022:1998/A1:2000
EN61000-3-2:2000
EN61000-3-3:1995/A1:2001
CISPR 22-1997/A1:2000 Class A
Electromagnetic immunity
The BayStack 425-24T Switch and BayStack 425-48T meet the
EN55024:1998/A1:2001 standard.
8
Technical specifications
†
Future software upgrade
Ordering information
Order number Description
AL2012?41** BayStack 425-24T Switch with 24 10BASE-T/100BASE-TX ports plus 2 built-in combo uplink ports and
built-in stacking ports (includes rack mount kits)
AL2012?44** BayStack 425-48T Switch with 48 10BASE-T/100BASE-TX ports plus 2 built-in combo uplink ports and
built-in stacking ports (includes rack mount kit)
AL2018005ˆ BayStack 420/425 Stack Cable, short (30 cm)
AL2018006ˆ BayStack 420/425 Stack Cable, long (100 cm)
AL2011012 BayStack 425 Switch Rack Mount Kit
AA1419013 1-port 1000BASE-SX SFP GBIC (LC connector)
AA1419014 1-port 1000BASE-SX SFP GBIC (MT-RJ connector)
AA1419003 1-port 1000BASE-LX SFP GBIC (LC connector)
AL2011013 Console Cable for use with BayStack switches
** The seventh character (?) of the switch order number must be replaced with the proper code to indicate desired product nationalization:
“A” – No power cord included
“B” – Includes European “Schuko” power cord common in Austria, Belgium, Finland, France, Germany, The Netherlands, Norway, and Sweden
“C” – Includes power cord commonly used in the United Kingdom and Ireland
“D” – Includes power cord commonly used in Japan
“E” – Includes North American power cord
“F” – Includes Australian power cord, also commonly used in New Zealand and the People’s Republic of China
^Stack cables are not included with the switches and need to be ordered separately. Stack configuration examples: For a stack of 8 switches,
order 7 short cables and 1 long cable. Follow this method for stack of 3 or more switches. For a stack of two, order two short cables only.
9
In the United States:
Nortel Networks
35 Davis Drive, Research Triangle Park, NC 27709 USA
In Canada:
Nortel Networks
8200 Dixie Road, Suite 100, Brampton, Ontario L6T 5P6 Canada
In Caribbean and Latin America:
Nortel Networks
1500 Concorde Terrace, Sunrise, FL 33323 USA
In Europe:
Nortel Networks
Maidenhead Office Park, Westacott Way, Maidenhead Berkshire SL6 3QH UK
In Asia Pacific:
Nortel Networks
Level 5, 495 Victoria Avenue, Chatswood, NSW, 2067, Australia, Phone: (61) 2 8870 5200
In Greater China:
Nortel Networks
Sun Dong An Plaza, 138 Wang Fu Jing Street, Beijing 100006, China, Phone: (86) 10 6528 8877
Nortel Networks is an industry leader and innovator focused on transforming how the world
communicates and exchanges information. The company is supplying its service provider and
enterprise customers with communications technology and infrastructure to enable value-added
IP data, voice and multimedia services spanning Wireless Networks, Wireline Networks, Enterprise
Networks, and Optical Networks. As a global company, Nortel Networks does business in more
than 150 countries. More information about Nortel Networks can be found on the web at:
www.nortelnetworks.com
For more information, contact your Nortel Networks representative, or
call 1-800-4 NORTEL or 1-800-466-7835 from anywhere in North America.
*Nortel Networks, the Nortel Networks logo, and the globemark design, BayStack, Optivity, and Passport are trademarks
of Nortel Networks. All other trademarks are the property of their owners.
Copyright © 2004 Nortel Networks. All rights reserved. Information in this document is subject to change without notice.
NN105060-070104
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