Nortel BayStack 450-12F, BayStack 450-12T, BayStack 450-24T, Baystack 410-24T Specifications

BayStack* 410 and 450 Switches are
stackable Ethernet switches featuring
fail-safe stackability, flexible choices
for high-speed uplinks, and advanced
software features.

BayStack 450 Switches are designed to
provide high-density, high-performance
switching for enterprise wiring closets,
and to provide fail-safe scalability
and advanced traffic management
for rapidly growing networks in
demanding environments.

The BayStack 410-24T Switch is an
affordable, stackable 10BASE-T switch
solution for growing network environments
and features fail-safe stackability with the
BayStack 450 Switches.

BayStack 410 and 450 Switches also
include advanced features such as VLAN
trunking, priority queuing, and IGMP
snooping. BayStack 450 Switches and
Accelar* Routing Switches also provide
network resilience and advanced
management with MultiLink Trunking,
LinkSafe* redundant uplink ports,
RMON on every port, complete
integration into Optivity* network
management software, and easy-to-use
GUI management.

Stackable Up to
8 Units and 224 Ports

Fail-Safe Cascade
Stacking
Architecture

Flexible Uplink Options

BayStack

410 and 450 Switches

Product Brief

BayStack 410 and 450 Switches Data Sheet2

Figure 1: In the unlikely event

of a switch failure,
the stack integrity
is maintained: cascade
signals loop back at
point of failure.

Table 1: Port, MDA, and Stacking Module Slot Configurations

of the BayStack 410 and 450 Switches.

Autosensing

Cascade

10BASE-T/ Stacking

100BASE-TX MDA Module

BayStack Switches Ports Slot Slot

BayStack 450-12T 12 1 1

BayStack 450-24T 24 1 1

Baystack 410-24T 24 (10BASE-T only) 1 1

BayStack 450-12F 12 (100BASE-FX only) 1 1

optimal speed, each switched port also
automatically detects and supports
full-duplex connections to servers,
power-user endstations or other switches
as well as half-duplex connections to legacy
NICs or hubs. The BayStack 410-24T
Switch is a cost-effective, stackable switch
that supports 24 10BASE-T ports.

High-Density Fiber Ports

The BayStack 450-12F Switch has twelve
100BASE-FX mini MT-RJ ports, one
MDA slot, and a cascade module slot.
Up to eight BayStack 450-12F Switches
can be stacked to achieve up to 128
100BASE-FX ports (with 4-port
100BASE-FX MDA on each switch).
The BayStack 450-12F Switch can also
be stacked with the BayStack 410-24T,
450-12T, and 450-24T Switches to
accommodate flexible networks.

Redundant Cascade
Stacking Architecture

Unlike other stacking switches, BayStack
410 and 450 Switches are designed with
a fail-safe cascade stacking architecture
(see Figure 1). Cascade cables connect
up to 8 stacked switches into a self-healing
configuration that protects the stack’s
connectivity by looping connection

As described in Table 1, BayStack 450
Switches are available in 24- and 12-port
configurations, each with a Media
Dependent Adapter (MDA) slot, as well
as a cascade stacking module slot. The
BayStack 410-24T has 24 10BASE-T
ports, one MDA slot, and one cascade
stacking module slot.

Features and Benefits

Flexible High-Speed
Uplink Options

100BASE-FX and 10BASE-T/100BASE­TX MDAs for the BayStack 410 and 450
Switches provide high-speed connections
to the network center. Specifically for the
BayStack 450 Switches, Gigabit Ethernet
and future ATM uplinks provide greater
speed connections to the backbone.

Full Autosensing
on Every Port

Every UTP port on the BayStack 450-12T
and 450-24T Switches are equipped with
autosense technology to automatically
detect and support the speed and mode of
a connected device. As well as automatically
determining whether a connected device
is operating at 10 Mbps or 100 Mbps
and automatically adjusting to the

signals back at a point of failure. In the
unlikely event of a switch failure, all
other units in a stack remain operational
without interruption.

The redundant cascade stacking
architecture is a safer, smarter alternative
to current “matrix” stacking switches,
which suffer from a single point of failure
design flaw — should the base unit fail,
all connectivity to all switches in the
stack is lost.

Wire-speed Throughput

2.5 Gigabit per second (Gbps) switching
fabric and custom switching ASICs
support full 802.1D-compliant MAC
Layer frame forwarding and filtering
across all ports at the peak rate of 3 million
packets per second for the BayStack 450
Switches. The non-blocking architecture
of the BayStack 410-24T Switch allows
packets to be forwarded at 1 million
packets per second.

BayStack 410 and 450 Switches Data Sheet 3

Figure 2: High-density 10/100/1000 switching in the wiring closet,

featuring fail-safe stackability and MultiLink Trunking
for redundant connections to local servers and the
network center.

BayStack
410 & 450 Switches

MultiLink Trunking
across stack for
multi-Gigabit,
load-balancing
connectivity to
local servers and
the network center.

Accelar™
1200 Switch

1 Gbps

100 Mbps

10 Mbps

100 Mbps

100 Mbps

and redundancy. Should one port
connection fail, other connections
within the MultiLink Trunk assume the
full traffic load seamlessly. MultiLink
Trunking also allows servers and critical
resources to be connected to different
switches in the stack to achieve
“Multi-Homing,” whereby link
redundancy is extended to include
unit redundancy, resulting in highly
available critical resources (see Figure 2).

• Each switch includes a Redundant
Power Supply Unit connection.
Should the switch’s built-in power
supply fail, the Nortel Networks RPSU
(sold separately) will automatically
supply power to the switch for
uninterrupted operation.

MultiLink Trunking

Enables grouping of links between the
switch and another switch or a server to
provide higher bandwidth of up to 800
Mbps (when used with 10/100 ports or
100BASE-FX ports) or up to 8 Gigabits

per second (when used with Gigabit
uplink ports on BayStack 450 Switches)
with active redundant links. Trunked
ports can span multiple units of the
stack for fail-safe connectivity to mission­critical servers and the network center.

IGMP Snooping

The BayStack 410 and 450 Switches
feature a new level of efficient IP
MultiCast support by examining
(‘snooping’) all IGMP traffic in hardware
at line rate, and pruning unwanted data
streams from affecting network or
endstation performance.

Enterprise-sized
MAC Address Table

BayStack 410 and 450 Switches support
more than 16,000 MAC addresses per
switch for deployment of large-scale
enterprise networks with many attached
devices and workgroups connected to
each switch. (In a full 802.1Q environment,
32,000 MAC addresses are supported.)

Advanced VLAN Support

Up to 64 port-based or protocol-based
VLANs can be established for each
switch, to extend the broadcast domain
and segment network traffic.

Protocol-based VLANs allow switch ports
to be assigned to a broadcast domain,
based on the protocol information within
the packet. These VLANs can localize
broadcast traffic and assure that the
specified protocol type packets are sent
only to the protocol-based VLAN ports.

802.1Q VLAN Trunking

VLAN trunking is supported on every
port of the switch, allowing efficient
means of transporting broadcast domains
across switches.

802.1p Priority Queuing

Standards-based priority queuing
enables prioritization of multimedia or
latency-sensitive traffic, making possible
integration of voice, video, and data
within the same network.

Fail-Safe Design Features

• Redundant cascade stacking architecture.

• Each unit in the stack has a full copy of
the stack configuration so in the unlikely
event of any unit failure, operation of
the stack continues without affecting
application connectivity.

• Gigabit uplinks (for BayStack 450
Switches only) feature LinkSafe, which
provides two different physical fiber
connectors for each Gigabit uplink.
Upon primary path failure, the traffic
is diverted to the redundant path
in microseconds, protecting critical
Gigabit Ethernet connections to
servers or the network center.

• MultiLink Trunking can be implemented
across the stack, where connections
between individual devices (for example,
between a BayStack 450 Switch and an
Accelar 1200 Routing Switch) can be
aggregated for both higher bandwidth

BayStack 410 and 450 Switches Data Sheet4

Enhanced Port Mirroring

Port mirroring enables detailed RMON 1
and RMON 2 analysis of switched traffic
using the Nortel Networks StackProbe* or
other external LAN analyzers connected
to any port in the stack. Port mirroring
copies packets flowing through a specified
port and sends the replicated data to the
probe for in-depth analysis of switched
traffic patterns to trouble-shoot problems
and optimize network configurations.

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.

RJ-45 Connectors
Wired for MDI-X

All 10/100 autosense Ethernet port
connectors are wired for MDI-X
connections to other devices. Inexpensive
straight-through unshielded twisted
pair (UTP) cables can be used to
provide switch connections to servers,
desktops, and internetworking devices.

Supports Spanning
Tree Protocol

BayStack 410 and 450 Switches include
built-in support for Spanning Tree
Protocol (IEEE 802.1D), which 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.

Fully Integrated into
Optivity Network
Management Software

BayStack 410 and 450 Switches feature
built-in support for Optivity network
management software, enabling complete
Simple Network Management Protocol
(SNMP) and RMON monitoring and
control. Network administrators can
manage their entire network, including all
hubs, switches, and routers, from a single
management station, dramatically reducing
the network total cost of ownership.

Easy-to-Use GUI Management

BayStack 410/450 Switches can be
configured and managed by using the
Device Manager Software. Also, VLAN
Manager software may be used for
configuring and managing VLANs
consisting of BayStack 410/450 and
Accelar Switches. Both software can be
downloaded free from the web site.

BayStack 410/450 Switches may also
be managed by using Optivity NMS
and NCS software.

In addition to above choices, an easy-to-use
menu-driven interface can be accessed
via console or Telnet for complete
configuration and management for
the BayStack 410 or 450 Switch.

Other Advanced
Management Features

• Adjustable rate limits protect the LAN
against broadcast or multicast storms
that can severely limit performance.

• BootP and TFTP support allows
centralized switch IP address assignment,
software upgrades, and SNMP agent
updates over the network.

• The RADIUS-based security feature
uses the RADIUS (Remote
Authentication Dial-In User Services)
protocol to authenticate local console
and TELNET logins.

• The Autotopology feature allows
network topology mapping of other
switches in the network.

BaySecure Secure LAN Access

BaySecure* allows authentication of
all access, not only to the switches for
management and configuration, but
access to the infrastructure through these
switches. Integrated with DHCP and
other IP services from Nortel Networks,
this software feature limits access to the
network to authorized and trusted users
with full tracking of network connections.

Concurrent RMON
on Every Port

This enables standards-based RMON
managers and Optivity applications
to manage the network, as well as the
device, with four groups of RMON
(Alarms, Events, History, and Statistics)
on every port.

BayStack 410 and 450 Switches Data Sheet 5

Technical Specifications

Table 2: Technical Specifications for the BayStack 410 and 450 Switches.

Performance Specifications (64 byte packets)

Aggregate Throughput (BayStack 450 Switches) 3 million packets per second (pps)

Aggregate Throughput (BayStack 410-24T Switch) 1 million packets per second (pps)

Switched 10 Mbps Port Forwarding Rate 14,880 pps

Switched 100 Mbps Port Forwarding Rate 148,810 pps

Switched 1000 Mbps Port Forwarding Rate 1,488,100 pps

Latency 9 microseconds for minimum packet length at 100 Mbps

Network Protocol and Standards Compatibility

IEEE 802.3 CSMA/CD (ISO/IEC 8802-3)

IEEE 802.3i 10BASE-T (ISO/IEC 8802-3)

IEEE 802.3u 100BASE-TX (ISO/IEC 8802-3)

IEEE 802.1D MAC Bridges (ISO/IEC 10038)

IEEE 802.3z 1000BASE-SX and 1000BASE-LX

(Draft Standard ver. 3.1)

IEEE 802.1p (Prioritizing)

IEEE 802.1Q (VLAN Tagging)

Data Rate and Encoding

10 Mbps Manchester encoding

100 Mbps 4B/5B encoding

1000 Mbps 8B/10B encoding

Gigabit Link Power Budget

1000BASE-SX 7.5 dB

1000BASE-LX MultiMode Fiber 7.5 dB

1000BASE-LX SingleMode Fiber 8.0 dB

Gigabit Cabling Distance Specification

1000BASE-SX on MMF (50 um) 550 m

1000BASE-SX on MMF (62.5 um) 260 m

1000BASE-LX on MMF (50 um) 550 m

1000BASE-LX on MMF (62.5 um) 550 m

1000BASE-LX on SMF (10 um) 5 km

Gigabit and 100BASE-FX Cabling Type 62.5/125 micron (core/cladding) MultiMode fiber

Gigabit and 100BASE-FX Connector Type SC type connector for the Gigabit MDAs

and the 2-port 100BASE-FX MDA

MT-RJ type connector for the 4-port 100BASE-FX MDA
and the BayStack 450-12F Switch

BayStack 410 and 450 Switches Data Sheet6

Table 2: Technical Specifications for the BayStack 410 and 450 Switches (continued).

Electrical Specifications

Line Frequency 47 to 65 Hz

BayStack 410-24T Switch Input Volt Amperes Rating 150 VA maximum

Input Power 100 W maximum

Input Voltage 100-240 VAC

Input Current 1.5 to .6 A @ 100 VAC

Thermal Rating 500 Btu/hr

BayStack 450-24T and 450-12F Switches Input Volt Amperes Rating 200 VA maximum

Input Power 140 W maximum

Input Voltage 100 - 240 VAC

Input Current 2.0 A @ 100 VAC

Thermal Rating 478 Btu/hr

BayStack 450-12T Switch Input Volt Amperes Rating 150 VA maximum

Input Power 120 W maximum

Input Voltage 100 - 240 VAC

Input Current 1.5 A @ 100 VAC

Thermal Rating 410 Btu/hr

Physical Dimensions

BayStack 450 Switches (H) 2.77 in. x (W) 17.55 in. x (D) 15.0 in.

[(H) 7.03 cm x (W) 44.07 cm x (D) 38.1 cm]

BayStack 410-24T Switch (H) 2.77 in. x (W) 17.40 in. x (D) 13.50 in.

[(H) 7.03 cm x (W) 44.20 cm x (D) 34.29 cm]

Weight

BayStack 450 Switches 11.6 lb (5.26 kg)

BayStack 410-24T Switch 7.63 lb (3.46 kg)

Environmental Specifications

Operating Temperature 32° to 104° F (0° to 40° C)

Storage Temperature -13° to 158° F (-25° to 70° C)

Operating Humidity 85% maximum relative humidity, noncondensing

Storage Humidity 95% maximum relative humidity, noncondensing

Operating Altitude 10,000 ft (3,000 m) maximum

Storage Altitude 10,000 ft (3,000 m) maximum

Free Fall/Drop ISO 4180-s, NSTA 1A

Vibration IEC 68-2-6/34

Shock/Bump IEC 68-2-27-29

BayStack 410 and 450 Switches Data Sheet 7

Table 2: Technical Specifications for the BayStack 410 and 450 Switches (continued).

Electromagnetic Emissions

Meets requirements of

US FCC Part 15, Subpart B, Class A

Canada ICES-003, Issue-2, Class A

Australia/New Zealand AS/NZS 3548:1995, Class A

Japan V-3/97 04:1997, Class A

Taiwan CNS 13438, Class A

EN 55 022 (CISPR 22:1985), Class A

EN61000-3-2 1995

EN61000-3-3 1994

VCCI Class 1 ITE

CE

Electromagnetic Susceptibility

Electrostatic Discharge (ESD) EC 801-2, Level 2

Radiated Electromagnetic Field EC 801-3, Level 1

Electrical Fast Transient/Burst EC 801-4, Level 2

Safety Agency Approvals UL Listed (UL 1950)

CSA 22.2 #950 with D3 deviations

IEC 950/EN 60 950

UL-94-V1 flammability requirements for all PC boards

Ordering and Availability Information

Table 3: Ordering and Availability Information for the BayStack 410 and 450 Switches.

Order Number Description Comments

AL2012?14 BayStack 450-24T Switch 24 10BASE-T/100BASE-TX ports

plus 1 MDA slot and 1 Cascade slot

AL2012?15 BayStack 450-12T Switch 12 10BASE-T/100BASE-TX ports

plus 1 MDA slot and 1 Cascade slot

AL2012?16 BayStack 410-24T Switch 24 10BASE-T ports plus 1 MDA

slot and 1 Cascade slot

AL2012?19 BayStack 450-12F Switch 12 100BASE-FX ports plus

1 MDA slot and 1 Cascade slot

AL2033002 BayStack 400-2FX 2-port 100BASE-FX MDA

AL2033003 BayStack 400-4FX 4-port 100BASE-FX MDA

AL2033004 BayStack 400-4TX 4-port 10BASE-T/100BASE-TX MDA

http://www.nortelnetworks.com

*Nortel Networks, the Nortel Network corporate logo, the Globemark, How the World Shares Ideas, Accelar, BaySecure, BayStack, LinkSafe, Optivity,
and StackProbe are trademarks of Nortel Networks. All other trademarks are the property of their owners. © 2000 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.

PB3086-H / 4-00

United States

Nortel Networks
4401 Great America Parkway
Santa Clara, CA 95054
1-800-822-9638

Canada

Nortel Networks
8200 Dixie Road
Brampton, Ontario
L6T 5P6, Canada
1-800-466-7835

Europe, Middle East, and Africa

Nortel Networks
Les Cyclades - Immeuble Naxos
25 Allée Pierre Ziller
06560 Valbonne France
33-4-92-96-69-66

Asia Pacific

Nortel Networks
151 Lorong Chuan
#02-01 New Tech Park
Singapore 556741
65-287-2877

Japan

Nortel Networks
Shiroyama Jt Mori Bldg. 28f
4-3-1, Toranomon
Minato-Ku
Tokyo, 105 Japan
81-3-5402-7001

Caribbean and Latin America

Nortel Networks
1500 Concord Terrace
Sunrise, Florida
33323-2815 U.S.A.
954-851-8000

For more sales and product information, please call 1-800-822-9638.

Table 3: Ordering and Availability Information for the BayStack 410 and 450 Switches (continued).

Order Number Description Comments

AL2033005 BayStack 450-1SX 1-port 1000BASE-SX Single PHY MDA For BayStack 450 Switches only.

AL2033006 BayStack 450-1SR 1-port 1000BASE-SX Redundant PHY MDA For BayStack 450 Switches only.

Includes LinkSafe.

AL2033007 BayStack 450-1LX 1-port 1000BASE-LX Single PHY MDA For BayStack 450 Switches only.

AL2033008 BayStack 450-1LR 1-port 1000BASE-LX Redundant PHY MDA For BayStack 450 Switches only.

Includes LinkSafe.

AL2033010 BayStack 400-ST1 Cascade Module, 2.5 Gbps Includes cascade cable.

Order one per switch in a stack.

AL2018001 BayStack 400-SRC Cascade Return Cable (1 meter)

Order one per stack of 3 units or more.

AL2018002 BayStack 400-SSC Cascade Spare Cable (18 in.)

AL2018003 BayStack 350/450 Wall Mount Kit - Kit includes 2 wall mount brackets

and two expansion brackets for stacking units up to two high.

AL2018004 BayStack 400-SRC Cascade Return Cable (3 meter)

*** 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" – European "schuko" power cord common in Austria, Belgium, Finland, France, Germany, The Netherlands, Norway, and Sweden. "C" – Power cord commonly used
in the United Kingdom and Ireland. "D" – Power cord co only used in Japan. "E" – North America power cord. "F" – Australia power cord, also co only used in
New Zealand and the People’s Republic of China.