S
mall and medium businesses (SMBs) are faced with different challenges to larger
enterprises. When it comes to networking equipment, you 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* 325 Switches are 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 provide small and medium businesses with the comfort of
knowing that their investment is protected with free new feature upgrades for the life of the
switches. Easy Web-based management features will save customers significant time in
setting up the switches. Also, the switches’ ease of use features require minimal technical
expertise to configure them.
BayStack 325 Switches are standalone 10/100 Mbps Layer 2 Ethernet switches featuring
easy configuration, high-speed uplinks, and Web-based management from your Web
browser. The BayStack 325 Switches have been architected to be Layer 3 and DiffServ
capable via a software upgrade in the future.
Product Brief
Nortel Networks
BayStack 325 Switches
• Cost-effective desktop switching
for small and medium enterprises
and branch offices
• Easy to use
• Uplink connectivity for server or
backbone connections
•Easy Web-based management
• 1U high compact design with low
power consumption
switching
cost-effective
Combining small rack space with low per-port pricing for a cost-effective switching solution, the BayStack 325 Switches are designed for the requirements of small to mediumsized businesses and branch offices that consider price to be a predominant decision factor
when acquiring networking functionality such as:
•Desktop switching
• Ease of management
• Easy set-up
The BayStack 325 Switches are available in two standalone, compact 1 rack-unit (1U) size
models—the BayStack 325-24T Switch (Figure 1) and the BayStack 325-24G Switch
(Figure 2).
The BayStack 325-24T Switch has 24 10BASE-T/100BASE-TX auto-sensing ports. The
BayStack 325-24G Switch has 24 10BASE-T/100BASE-TX auto-sensing ports plus 2
10/100/1000BASE-T ports for uplink connectivity to servers or backbone switches.
Advanced features such as Multi-Link Trunking (MLT), IGMP Snooping, VLAN Trunking,
and flexible management tools help you to efficiently manage your network traffic (Figure 3).
Features and benefits
Full auto-sensing on every port
Every UTP port on the BayStack 325 Switches is equipped with auto-sensing 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 network interface cards (NICs) or hubs.
High-speed uplink ports
The BayStack 325-24G Switch provides
two 10/100/1000BASE-T ports in the
front of the unit that provides high-speed
connections to backbone switches or servers.
Wire-speed throughput
A 16-Gigabit per second (Gbps) switching
fabric and ASICS support full 802.1dcompliant MAC Layer frame forwarding
and filtering across all ports at wire-speed
performance. The BayStack 325-24T Switch
has a peak forwarding rate of 3.6 million
packets per second and the BayStack 32524G Switch has a peak forwarding rate of
6.6 million packets per second.
BoSS (BayStack operating system
Switching Software)
BoSS for BayStack 325 Switches is a single
software image that is used for both BayStack
325 Switch models. The software image
provides new features and will be available
for free for the lifetime of the switches. Only
a single image needs to be downloaded
Figure 1. BayStack 325-24T Switch
Figure 2. BayStack 325-24G Switch
Figure 3. Small/medium business solution
2
BayStack 425 Switches
BayStack 325-24G Switch
Distributed
Multi-Link
Trunking
Passport 1612G Switch
Multi-Link
Trunking
Servers
10/100 Mbps
connections
Network center
Floor 3
Floor 2
3
from the Nortel Networks Web site for
either the BayStack 325-24T Switch or
BayStack 325-24G Switch. This saves
network administrators time in downloading
images if both models of BayStack 325
Switches are present in the network.
Other BayStack switches support a different version of BoSS.
BoSS version 3.0 is currently shipping with
the BayStack 325 Switches. In the future, a
single image will be available that can be used
for BayStack 325, 425, and 420 Switches.
Multi-Link Trunking
Multi-Link Trunking (MLT) enables grouping of links between a BayStack 325 Switch and
another switch or a server to provide greater bandwidth with active redundant links (Figure 4).
The BayStack 325 Switches support up to six MLTs per switch with up to four ports per MLT.
VLAN support
Up to 32 port-based VLANs can be established on a BayStack 325 Switch, to extend the
broadcast domain and segment network traffic for higher network efficiency. IEEE 802.1Q
VLAN Trunking is supported on every port of the switch, allowing efficient means of transporting broadcast domains. VLANs reduce administration costs by simplifying network moves,
adds, and changes. BayStack 325 Switches have been architected to support 255 VLANs in
the future.
Enterprise-sized MAC address table
BayStack 325 Switches support up to 8,000 MAC addresses, providing ample scalability for
growing networks wishing to connect many devices and workgroups to each switch.
IGMP snooping
BayStack 325 Switches feature IP Multicast support by examining (‘snooping’) all Internet Group
Multicast Protocol (IGMP) traffic in hardware at line rate, and filtering out multicast streams
not of interest to particular end-stations, thereby enabling peak computer performance.
Nortel Networks Command Line Interface (NNCLI)
The NNCLI is used to automate general management and configuration of BayStack 325
Switches. The NNCLI is used through a Telnet session or through the serial port on the console.
ASCII configuration file
BayStack 325 Switches can download a user-editable ASCII configuration file from a TFTP
(Trivial File Transfer Protocol) 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 according to
the NNCLI commands in the file. This feature allows the flexibility of creating command
configuration files that can be used on the switches 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.
MLT with load-balancing and failover protection for uninterrupted
access to servers or the network
center
Server
Passport 1612G Switch
BayStack 325-24G Switch
Figure 4. Multi-Link Trunking (MLT)
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 a BayStack 325 Switch with IEEE 802.1p.
Supports 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
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 BayStack 325 Switches easy with a Web
browser. Summary, configuration, fault, statistics, application, administration, and support
pages can be provided. Real-time sampling provides up-to-date LED statistical information.
The Web interface also allows for static configuration of numerous parameters of the device.
On-box management
Network management begins with the device. BayStack 325 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 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. Nortel Networks
Optivity* Switch Manager†(OSM) is a Java-based, real-time, configuration management
application for Nortel Networks Ethernet products, including BayStack 325 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 Nortel Networks Optivity Network Management System†(ONMS), the network
manager has quick access to the information required to manage and isolate all network
events on BayStack 325 switches. Tools, such as Physical Topology View, inform the network
4
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, provide 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
any network event or to manage performance in real-time. The BayStack 325 Switches
support “syslog” capability that helps in troubleshooting network issues.
Advanced management features
BootP and TFTP support allows centralized switch IP address assignment, software
upgrades, and SNMP agent updates over the network. The RADIUS-based (Remote
Authentication Dial-In User Services) security feature uses the RADIUS protocol to
authenticate local console and Telnet logins.
Enhanced security
BayStack 325 Switches offer the highest level of security with 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 you 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 325 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 troubleshoot
problems and optimize network configurations. Additionally, an external probe device can
be attached to the designated monitor port.
5
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 resetting the unit.
Common look and feel
All BayStack switches, including BayStack 325, 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 325 Switches can be connected to a hub or another switch quickly and cost-effectively. Normally, you need a crossover cable for this purpose. Crossover cables are not that
readily found when you need one. However, with the BayStack 325 Switch you can use
either a straight-through or crossover cable. When a cable is connected to one of the 10/100
ports on the switch, the switch port automatically can detect 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 configuration parameters on a
TFTP server. Configuration parameters can be retrieved automatically to configure a
replacement switch with the same configuration. For new installations or when a switch has
failed, this feature saves time in reconfiguring another switch.
Power and space savings
Low power consumption 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.
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 325 Switches, along with other Nortel Networks products, can increase
your profitability, streamline your business operations, increase productivity, and help you
gain the competitive edge.
7
Technical specifications
Physical specifications
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)
Performance
Switch fabric bandwidth 16 Gbps
Frame forwarding rate
BayStack 325-24T 3.6 million packets per second (Mpps)
BayStack 325-24G 6.6 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 16MB 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
10BASE-T/100BASE-TX/1000BASE-T RJ-45 (8-pin modular) connectors for MDI-X
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
BayStack 325 Switches meet the EN55024:1998/A1:2001 standard.
Order number Description
AL2012?45** BayStack 325-24T Switch with 24 10BASE-T/100BASE-TX ports
(includes rack mount kit)
AL2012?46** BayStack 325-24G Switch with 24 10BASE-T/100BASE-TX ports plus 2
10BASE-T/100BASE-TX/1000BASE-T ports (includes rack mount kit)
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
† Future software release
Ordering information
Technical specifications
(continued)
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:
Nortel Networks Asia
Level 5, 495 Victoria Avenue
Chatswood, NSW, 2067, Australia
Phone: +61 2 8870 5200
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, the globemark design, BaySecure, BayStack, and Optivity 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.
Nortel Networks assumes no responsibility for any errors that may appear in this document.
NN108820-060904
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