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The Centillion 1000 family of

high-capacity multiservice ATM switchesfrom Bay Networks, a Nortel Networks

Business, delivers a uniquely robust and

powerful switching solution to enterprise

networking environments.

Available in three different models,

the Centillion 1000 multiservice ATM

switches use a common set of interface

modules to deliver high-bandwidth

support for voice, video, and data

applications throughout the enterpriseand across the wide area network.

Centillion 1600 is designed for

deployment in the network centers

of large ATM networks. This 16-slot

multiservice switch is unique in its

ability to provide total switch fabric,

processor, and power supply redundancy,

and is ideal for installations where

total availability of integrated

voice, video, and data services

is a necessity. The Centillion 1600

delivers overall switching capacity

of 10 Gbps and full ATM wide

area network (WAN) connectivity.

Centillion 1400 supports environments

that do not yet require the capacityof the Centillion 1600. This 8-slot

multiservice switch is also appropriate

for large campuses requiring ATM

building concentration, and provides

total switch fabric, processor, and power

supply redundancy. The switch delivers

overall switching capacity of 5 Gbps,

includes full support for integrated

voice, video, and data services, and

provides full ATM wide area connectivity.

Centillion 1200 supports power

workgroups and/or branch office

connectivity to the enterprise network.

The 4-slot switch delivers overall

switching capacity of 2.5 Gbps, and

also provides power supply redundancy

and full ATM WAN connectivity.

Bay Networks Data Sheet

Total Availability

Graceful Congestion Control

Reduced WAN

Infrastructure Costs

Comprehensive

Investment Protection

Web-Based Management

Year 2000 Compliant

Multiservice ATM

CentillionCentillion 1000 Multiservice ATM solutions

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variety of physical media interfaces.

To establish connectivity between remote

locations over public ATM networks,

Centillion 1000 switches can be populated

with DS1/E1 and/or DS3/E3 wide-area

interface modules. In addition, because all

modules support traffic shaping, OC-3cand OC-12c modules can be used to

establish high-bandwidth wide area links

as network traffic increases.

The Centillion 1000 multiservice

solutions enable network designers and

managers to select the chassis and location

that best fits their organization's size

and network loading. Capacity can be

increased to support a maximum of

16 OC-12c or 64 OC-3c interfaces, withATM connectivity offered at rates from

1.5 Mbps DS1 to 622 Mbps OC-12c.

As demands on the network continue

to increase, the Centillion architecture

delivers unparalleled scalability. Web-based

management simplifies the administration

of all Centillion 1000 switches across the

network. Graceful congestion control

maximizes traffic throughput per switch,

and support for hierarchical PNNI

virtually eliminates network size

limitations. The Centillion architecture

scales from small branch offices and power

workgroups through to the largest and

most intensive enterprise network centers,

with proven support for networks of

several hundreds of switches and many

thousands of users.

Centillion 1000 Multiservice ATM solutions Data Sheet2

Guaranteeing total availability of

mission-critical information, the high-end

Centillion 1600 and Centillion 1400

switches are ideal for mixed-traffic

environments where voice services must

have total and absolute continuity.

These switches can be equipped withan optional redundant switch

fabric/processor module an industry

first ensuring continuous availability

of business-critical PBX voice systems

connected over ATM campus networks

and WANs.

Eliminating the need to maintain

separate networks for data flows and

latency-sensitive voice and video traffic

dramatically reduces network operatingcosts, particularly over wide area networks.

Backbone and riser connectivity between

Centillion 1000 multiservice switches and

Centillion 50, Centillion 100, and System

5000 LAN-ATM switches is supported

by 622 Mbps OC-12c and/or 155 Mbps

OC-3c modules, which support a wide

A critical component of the end-to-end

ATM solutions from Bay Networks,

the Centillion 1000 multiservice switch

family complements the Centillion 50,

Centillion 100, and System 5000BH

LAN-ATM switches to deliver a resilient,

scalable, switched architecture integratingATM with Ethernet, Fast Ethernet, and

Token Ring local area networks, desktops,

and high-performance servers. All

Bay Networks solutions are fully

standards-compliant, guaranteeing

interoperability with the ATM Routing

Engine in the BN (Backbone Node)

router, the Centillion Multiprotocol

Engine, the Bay Networks Multimedia

Switching Solution, and all standards-

compliant third-party ATM equipment.

BENEFITS

Total AvailabilityContinuous availability of business-critical

information is a key requirement in

enterprise networks, especially where

large numbers of information flows are

aggregated in the network center.

Availability requirements are heightenedwhen the multiservice capabilities of

ATM are leveraged to integrate voice

services with campus and wide area data

networks ATM network equipment

must have redundancy features to equal

those of voice Private Branch Exchange

(PBX) equipment.

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Centillion 1000 Multiservice ATM solutions Data Sheet 3

Bay Networks understands the importance

of maintaining business information

flows, and is unique in providing total

switch fabric and processor redundancy

in both the Centillion 1600 and

Centillion 1400 network center switches.

Total switch fabric/processor redundancypreserves the integrity of the entire

switching capacity under failure

conditions, ensuring continued transport

for all information flows.

System availability is further enhanced

through the use of fully redundant power

supplies and chassis cooling systems,

eliminating any single point of device

failure. Centillion 1000 solutions feature

passive backplane technology to guaranteefull and straightforward system

serviceability avoiding the extended

downtime inherent when active backplane

architectures experience hardware failures.

Voice service is essential to the operation

of any organization. Only Bay Networks

offers the total system redundancy and

serviceability required to maintain

uninterrupted operation of corporate

PBX systems in mixed voice/data ATM

environments, making the Centillion

1000 switches the logical solution in

mission-critical multiservice environments.

Centillion LAN-ATM technology

also enhances information availability

out to the network edge. The Centillion

architecture supports the establishment

of multiple, load-balancing ATM

connections from the network center to

Centillion 50, Centillion 100, and System

5000BH edge switches, where fast-failover

NNI (network-to-network interface) links

deliver a resilient, fully-meshed topology.

Graceful Congestion ControlThe aggregation of information flows

in enterprise network centers challenges

traditional switching architectures because

the volume of each flow is rarely balanced.

Congestion conditions are encountered

from time to time in even the most

conservatively over-dimensioned networks.

Traditional switching architectures allow

the effects of congestion at one point in

the network to spread and negatively

impact all information flows, particularly

those demanding low latency, such as

voice and video traffic. Lacking a more

graceful means of handling and isolating

congestion, traditional switching

architectures can only mitigate congestion

by the addition of more switching capacity.

This impacts overall cost of ownership and

limits network growth.

The Centillion 1000 architecture is unique

in providing graceful congestion control

through intelligent traffic buffering, a

unique method of regulating data traffic

under heavily congested conditions. This

method of congestion control isolates

overloaded inputs from other traffic flowsto provide an overall increase in traffic-

handling capability, supporting higher

amounts of network traffic without the

need for additional hardware expenditures.

Reduced WAN

Infrastructure CostsAs telecommunications carriers and

network service providers introduce

attractively tariffed ATM services,enterprise network managers are presented

with new opportunities to reduce network

operating costs. Public ATM wide area

networks (WANs) facilitate significant cost

savings by enabling the consolidation of

duplicate or triplicate wide area services

formerly needed to carry data, voice,

and/or video information between

campuses into a single, integrated,

lower-tariffed ATM service. The inherent

multiservice capabilities of ATM makepublic WANs ideal for transporting

interoffice PBX voice, high-quality video,

and data traffic flows. The dramatic cost

savings that result from the consolidation

of multiple traffic streams onto a single

platform are driving the rapid adoption

of ATM WAN services as the interoffice

networking platform of choice.

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The Centillion 1000 switch family

provides all of the capabilities needed

to take advantage of these public ATM

services. All interfaces feature wide area

traffic shaping, allowing connection to

public networks at speeds ranging from

1.544 Mbps DS1 through 622 MbpsOC-12c. Circuit emulation supports

direct connection of voice PBX and video

services into the ATM infrastructure,

and extensive Quality of Service (QoS)

queuing and intelligent buffering features

guarantee performance and prioritization,

even over low-speed connections.

Comprehensive

Investment ProtectionAs the enterprise network evolves over

time, cost-effective solutions must be

chosen over those with limited scalability

that will require expensive upgrades. The

Centillion 1000 family delivers a highly

scalable solution that shares a common

software base and interoperates seamlessly

across the enterprise.

As demands on the network grow, capacity

can easily be increased by inserting

additional modules into the switch chassis,

or scaling to higher-bandwidth interface

modules. Advanced features, such as total

availability and OC-12c connectivity, can

either be configured at initial deployment

or added when needed. The Centillion

1000 architecture is also unique in

gracefully controlling the effects of

network congestion to isolate overloaded

inputs from other traffic flows. Traditional

ATM architectures lack this capability,

and require the addition of moreswitching capacity to handle traffic

growth. In contrast, the Centillion 1000

architecture allows information flows to

experience significantly greater growth

before additional switching hardware

is required.


Centillion 1600 10 Gbps 16 16 64 Yes

Centillion 1400 5 Gbps 8 8 32 Yes

Centillion 1200 2.5 Gbps 4 4 16 No

Table 1 : Centi ll ion 1000 Chassis Capabil ities .

SwitchCapacity

Number ofModule Slots

MaximumOC-12cPorts

MaximumOC-3cPorts

Supportfor Total

Fabric/ProcessorRedundancy

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When the growth capacity of an existing

Centillion 1000 switch is finally

maximized, its continued viability is

maintained by either installing an

additional switch to increase capacity,

or by redeploying the switch toward

the network edge. Existing hardwareinvestments are further protected in

this process, because all Centillion 1000

interface modules are fully interchangeable

between the three chassis models.

Interface modules can be deployed across

the Centillion network to maximize

network efficiency and throughput,

and then easily redeployed, over time,

as requirements change and grow.

The Centillion 1000 family also providescost-effective scaling of wide area services

with all interfaces featuring full wide area

traffic shaping. As WAN traffic demands

grow, higher speed interfaces can be

utilized for either campus or wide area

connectivity there is no requirement to

purchase new modules to gain high-speed

WAN support features.

Web-Based ManagementBased on advanced JAVA technology,

the SpeedView 1000 management

application provides an easy-to-use

graphical interface that allows users to

configure, monitor, and manage

Centillion 1000 switches from any

Web browser-enabled workstation on the

network. Multiple layers of security enable

network managers to allow or deny access

to specified users, ensuring the safety

of mission-critical data. A platform-

independent application, SpeedView 1000

can be installed in UNIX and Windows

operating system environments.

Configuring one Centillion 1000 switch

or a network of switches is no longer acomplex series of command line interface

operations. SpeedView 1000 makes

configuration a simple point-and-click

procedure, delivering tabbed windows

to provide quick access to related

configuration settings and status

information. The application automatically

ensures that input values are valid, offering

helpful hints, suggestions, and practical

advice to ensure an error-free configuration.

Access security is a primary consideration

in selecting a management solution.

SpeedView 1000 provides three levels

of secured access, allowing the network

administrators to define the set of

Centillion 1000 switches (if any) that can

be managed by a specific user. Securityis further enhanced by having clients

access switches through the existing

browser/Web server security functions,

such as Secured Sockets Layer, eliminating

direct connections between the clients

and the switches.


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FEATURES

Multiple ChassisThe Centillion 1000 multiservice switches

are available in three different chassis sizes,

allowing absolute flexibility in designing

and deploying cost-effective enterpriseATM networks. All Centillion 1000

chassis can be configured with fully

redundant power supplies, and hot-

swappable switch fabric/processor

modules, power supplies, interface modules,

and cooling units can be removed and

replaced without system interruption.

Total Switch Fabric and

Processor RedundancyThird-party ATM switches that do

not provide redundant switching and

processing services, or where overall

fabric capacity is divided among distinct,

nonredundant segments, run a continual

risk of losing all connections or suffering

a significant reduction in overall switch

capacity. This unacceptable risk factor

makes these products poorly suited for use

in network centers where large quantities

of business-critical information flows are

aggregated. Integrated voice services

demand total availability and any loss

of connectivity, or degradation in switch

fabric and/or processing capacity,

drastically impacts the real-time servicing

necessary to support reliable, high-quality

voice transport over ATM.

The high-capacity Centillion 1600 and

Centillion 1400 chassis support total

information availability by providing

single-stage, fully-duplicated switch

fabric/processor modules. When

configured with redundant switching/

processing modules, the Centillion 1600and Centillion 1400 switches guarantee

that the total capacity of the switch is

always available, supporting connectivity

across all ports and ensuring smooth delivery

for delay-sensitive information flows.

Intelligent BufferingIn products without intelligent buffering,

excessive input traffic can cause output

buffers to become congested, resultingin dropped cells. Input traffic and switch

congestion then increases exponentially

as lost cells lead to packet retransmissions,

disrupting traffic on all inputs that are

switched to the congested output. Even

inputs introducing low quantities of traffic

can experience losses. As the switch fabric

becomes increasingly overloaded, the

viability of low-latency voice and video

traffic is disrupted as switching response

times are compromised.

The Bay Networks Centillion 1000

architecture provides both input and

output buffers, breaking the disruptive

congestion cycle by introducing back

pressure from the buffers. By slowing

down the rate at which input buffers

empty into the switching fabric, a moreeven, scalable use of switching resources is

provided. Busy inputs that experience cell

loss initiate Early Packet Discard (EPD),

enabling them to discard all irrelevant

cells or packets, preventing overloading

at the output buffer. This process prevents

exponential increases in switch traffic,

reducing congestion and maximizing

overall system performance and scalability.

By isolating congested inputs andpreventing them from overloading the

network, EPD protects other inputs

from overloading and maintains service

guarantees for delay-sensitive voice and

video traffic.

Private Network-to-Network

Interface (PNNI)PNNI is a topology determination and

signaling protocol that enables ATM

networks to automatically find the

optimum path when establishing virtual

connections. A valuable time saver for

network managers, the protocol

communicates key QoS metrics, including

bandwidth requirements, latency

parameters, delay, burstiness, and jitter.

PNNI scales to support ATM networks

of any size, from campus deployments

to global WANs, and also provides fast

convergence around network outages andsupport for load-sharing, multi-homed

configurations.


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Enterprise ATM switches have traditionally

been interconnected with manually-

configured static routes. This is manageable

when network size is small, but as the

network grows and switches are added,

manual topology configuration becomes

increasingly complex and error-prone.

All Centillion 1000 switches support

the PNNI dynamic topology protocol,

as well as conventional static topology

configuration. As networks grow, PNNI

allows switches to automatically discover

and determine connectivity routes

without requiring manual intervention

(see Figure 1).

Centillion 1000 PNNI can also interoperate,

via static routes, with switches utilizing the

Interim Interswitch Signaling Protocol

(IISP), enhancing network design flexibility.

In large network centers where significant

numbers of switch interconnections

are concentrated, PNNI topology

negotiations and updates can consume

considerable processing resources. PNNI

relieves this restraint on network growth

by dividing large networks into separate

hierarchical domains. Centillion 1000

multiservice switches scale to support the

largest enterprise network centers through

hierarchical PNNI.


Figure 1: Centillion PNNI Deployment.

Multi-level PNNI domain

Centillion 50,Centillion 100,System 5000BH& MultimediaWiring ClosetLAN-ATM EdgeSwitches

Centillion 1400Building Concentration

4/16 Token RingDesktops

10/100 EthernetDesktops

Centillion 1600Enterprise Concentration

PNNI and/or IISP domain

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Full WAN CapabilitiesThe Bay Networks Centillion 1000

multiservice switches provide the

advanced traffic-shaping capability and

connectivity options needed to connect

ATM campus backbones to public ATM

wide area networks. Most ATM LAN

backbones operate in multiples of

155 Mbps (OC-3), whereas public WAN

services are usually offered in smaller

increments, from 64 Kbps to 45 Mbps.In addition, public ATM WANs enforce

traffic contracts to regulate data flows,

while private campus ATM networks

typically do not. To resolve this conflict,

traffic emanating from bursty, unpoliced

private ATM networks must be buffered

and shaped so that it adheres to public

network traffic contracts.

All interface modules for the Centillion

1000 switches provide full ATM traffic

shaping capabilities (see Figure 2),

supporting integrated voice, data, and

video wide area networks at all rates from

DS1/E1 or DS3/E3 through high-

throughput OC-3c and OC-12c links.

Public ATM networks typically offer only

nonswitched permanent virtual circuit

(PVC) services, while enterprise ATM

networks make extensive use of ATM's

dynamic switched virtual circuit (SVC)

capabilities to support changing data,

voice, and video flows. In order to preserve

seamless application and service support

out to WAN-connected remote campuses

or branch offices, circuit switching

must be maintained across the extended

enterprise network. All Centillion 1000

interface modules extend circuit switching

throughout the enterprise by supporting

SVC tunneling through public network

PVC services, ensuring that the benefits

of ATM switching are available across

the network.

End-to-End Quality

of Service (QoS) SupportThe Centillion switching solutions from

Bay Networks support transmission of

voice, video, and conventional data traffic

in campus ATM networks and over

both public and private ATM WANs

(see Table 2). Centillion 1000 multiservice

switches fully support all ATM QoS

classes. Delay-sensitive Constant Bit Rate

(CBR) voice and video traffic is assigned

higher priority to ensure the required

bandwidth and minimal buffering to

achieve successful delivery. Variable

Bit Rate (VBR) traffic has less stringent

delivery requirements, and may be

buffered in output queues. Unspecified Bit

Rate (UBR) and Available Bit Rate (ABR)

traffic is not latency-sensitive, and accepts

best-effort delivery whenever bandwidth

becomes available.

All Centillion 1000 multiservice switchesprovide strict traffic policing services,

ensuring that all flows adhere to their

service contracts so that service levels

across the network are not compromised.

Centillion 1000 traffic management

capabilities include Explicit Forward

Congestion Indicator (EFCI) support,

as well as Explicit Rate, No Increase, and

Congestion indicators in the resource

management cells of ABR traffic.

Circuit Emulation for

PBX Interconnection

and Video TrafficHeavily utilized to provide high-quality,

highly-available business voice telephony

services, PBX systems are typically

extended across large geographical areas

over time division multiplexed (TDM)

DS1/E1 circuits to provide voice service

between corporate locations. In some


Unshaped UBRTraffic

Traffic Shapedfor WAN

Public WANlink capacity

Campus LANlink capacity Centillion 1000

Figure 2: Centillion ATM Wide Area Traffic Shaping.

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Table 2: Centillion 1000 Interface Module Capabilities.

Centillion 1000 Interface Modules

OC-12c Long Reach Single-mode Fiber Module 1 SC 622 Mbps 40 km

OC-12c Intermediate Reach Single-mode Fiber Module 1 SC 622 Mbps 15 km

OC-12c Multimode Fiber Module 1 SC 622 Mbps 500 m

OC-3c Long Reach Single-mode Fiber Module 1 SC 155 Mbps 40 km

OC-3c Intermediate Reach Single-mode Fiber Module 4 SC 155 Mbps 15 km

OC-3c Multimode Fiber Module 4 SC 155 Mbps 2 km

OC-3c UTP Module 4 RJ-45 155 Mbps 100 m

DS3 Coaxial WAN Module 2 BNC 45 Mbps

E3 Coaxial WAN Module 2 BNC 34 Mbps

DS1 WAN Module 4 RJ-45 1.544 Mbps

E1 WAN Module 4 RJ-45 2.048 Mbps

DS1 Circuit Emulation Module 4 RJ-45 1.544 Mbps

E1 Circuit Emulation Module 4 RJ-45 2.048 Mbps

* Power budget calculations specific to each site

applications, DS1/E1 and DS3/E3 circuits

are also used to transport high-bandwidth,

low-latency video flows between enterprisenetworks and remote locations. By

consolidating voice and video traffic

with interoffice data flows into a single,

integrated WAN, significant cost benefits

can be realized. However, in order to

achieve a cost-effective, integrated

solution, the DS1/E1 circuits intercon-

necting PBX and video services must be

seamlessly emulated by the corporate

ATM infrastructure.

Circuit Emulation is an ATM Forum

standard specifying how ATM equipment

discerns individual voice or video channelsin DS1/E1 TDM circuits. In addition,

the standard also governs how ATM

equipment assigns these individual

channels to different ATM virtual circuits

via ATM Adaptation Layer 1 (AAL1).

The Centillion 1000 multiservice switches

provide full support for structured and

unstructured DS1/E1 circuit emulation.

Structured DS1/E1 adapts individual

DS1/E1 fractional channels to ATM

virtual channels with specific virtual path

identifiers (VPIs) and virtual channel

identifiers (VCIs). The unstructured

service adapts the entire DS1/E1 circuitto an ATM virtual path. Both structured

and unstructured DS1/E1 circuit

emulation provides signaling bit transport

based on ATM Forum standards such as

Channel Associated Signaling (CAS),

and robbed-bit signaling.


Numberof Ports Connector Data Rate

MaximumCabling

DistanceSupported*

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Wide Range of Interface CardsThe Centillion 1000 multiservice

switching solutions provide extensive

ATM interface support, ensuring

complete flexibility in the design and

cost-effective deployment of enterprise

ATM networks. All interface modules

are fully interchangeable across all

Centillion 1000 chassis, support wide-area

ATM traffic shaping, and are fully

hot-swappable.

ManagementThe Centillion 1000 multiservice switches

are manageable by the SpeedView 1000

client/server management application.

Based on advanced JAVA technology,SpeedView 1000 provides an easy-to-use

graphical interface that allows users to

configure, monitor, and manage

Centillion 1000 switches from Web

browser-enabled workstations at any

location on the network. Network security

is centrally controlled by the network

manager, who can use multiple layers of

security to allow access to specified users.

A platform-independent application,

SpeedView 1000 can be installed in bothUNIX and Windows operating systems.

Through its graphical interface,

SpeedView 1000 enables users to easily

leverage the rich ATM functionality

offered by the Centillion 1000 switches.

Configuring one switch or a network

of switches for PVCs, soft PVPs, traffic

management, filter creation, pollingintervals, PNNI peer groups, Hello

intervals, topology exchange intervals,

and ATM other parameters is no longer a

complex series of command line interface

operations. By providing a navigation

toolbar to help users move through the

menu hierarchy, SpeedView 1000 makes

configuration a simple point-and-click

process. Tabbed windows provide quick

access to related configuration settings

and status information. The application

automatically ensures that input values are

valid, offering helpful hints, suggestions,

and practical advice to ensure an error-free

configuration.

Not only does SpeedView 1000 deliver

enhanced ease of use, it also provides ease

of installation. The two components of

SpeedView 1000 the Management

Server and the Browser Client are

installed together on a Web server. Onceinstalled, the Browser Client applets are

automatically downloaded and executed

at the client workstation when needed.

Because there is no client-side installation,

network administration of SpeedView

1000 is more cost-effective and flexible

than traditional client/server management

systems. Software updates are performed

centrally at the Web server, streamlining

the upgrade process dramatically.

Access security is a primary consideration

in selecting a management solution.

SpeedView 1000 provides three levels

of secured access, allowing the network

administrators to define the set of

Centillion 1000 switches (if any) that

can be managed by a specific user. Securityis further enhanced by having clients

access switches through the existing

browser/Web server security functions,

such as Secured Sockets Layer, eliminating

direct connections between the clients

and the switches.

The browser-based capabilities of

SpeedView 1000 software allow management,

monitoring, and problem resolution

procedures to be quickly performed fromanywhere in the network. The application

displays alarms, errors, traffic statistics,

accounting information, and performance

data by using graphics and tables, and

delivers a key management, monitoring,

and configuration tool for multiservice

networks.

For onsite management and configuration,

the command line interface may still be

used. Any VT100 terminal or laptop

running emulation software can be

directly connected to the switch. To aid

troubleshooting, the debug mode allows

proactive tracing of system events to

ensure rapid problem resolution.


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Year 2000 ComplianceAll Centillion 1000 ATM multiservice

switches have been tested and found

to be compliant with the requirements

established by the US Government for

the acquisition of information technology

products in its final rule effective as of

October 21, 1997. Centillion 1000

switches will function correctly when

dealing with dates, times, and date/time-

related data in the following manner:

Centillion 1000 switches will accurately

process date/time data (including, but

not limited to, calculating, comparing,

and sequencing) from, into, and

between the 20th and 21st centuries,

and the years 1999 and 2000, and leap

year calculations.

When used in combination with

products from other vendors,

Centillion 1000 switches will accurately

process date/time data to the extentthat the other vendors information

technology products are capable of

exchanging conforming date/time data.

Centillion 1000 switches will not

contain or create any logical or

mathematical inconsistencies,

will not malfunction, and will not

cease to function when processing

date/time-related data.


NetworkCenter

OC-12 ATM with LANE

Centillion1600

Centillion1200

Centillion 100

Centillion 50

System 5000

System 5000

Centillion 100

MultimediaSwitch

Small/MediumBranch

Network

LargeEnterpriseNetwork

ATMWAN

Imaging/CADWorkstations

High-Bandwidth Clients

Token RingWorkstations

OfficeAutomation

LANE-EnabledServers

Switched 10 or 100 Mbps

Shared/Switched 10 Mbps

Wiring Closets

Fast fail-overmultihomed, NNI Links

OC-12,OC-3PNNI or IISP

ATM Backbone

Switched 10 or 100 Mbps

Switched 10/100 Mbps

High-Bandwidth Clients

Office Automation



OC-3

DS-3/E3DS-1/E1

OC-3

DS-3/E3DS-1/E1

OC-12OC-12

Phones/Fax

Phones/Fax

BuildingConcentration

Centillion1400

OC-3

OC-12

System 5000with Centillion

Multiprotocol Engine(s)

High-UtilizationServers100 Mbps Ethernet

OC-3

DS-3/E3

DS-1/E1

DS-3/E3 DS-1/E1

Token RingWorkstations

Voice PBX

Voice PBX

Ethernet/IP and ATM25

Multimedia Desktops

OC-12, OC-3PNNI Inter-Building

Meshed Links

OptivityManagement

Figure 3: Centillion Multiservice Connectivity in the Enterprise Networking Environment.

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ApplicationsAs shown in Figure 3, the Bay Networks

Centillion ATM solutions can be deployed

across the enterprise, from the edge to the

network core. High-capacity multiservice

switching is provided in the network

center of large enterprise networks by the

Centillion 1600 or Centillion 1400

switches, depending upon overall capacity

required. When fully configured, these

switches provide total availability,

delivering full support for mission-critical

PBX phone service, station-to-station

video, and data traffic. Voice and video

traffic is also supported by the MX WAN

Access platform.

High-speed riser links extend from the

network center to high-speed Centillion

1400 or 1200 switches, providing switch

aggregation in large campus environments.

Risers also provide connectivity to

Centillion 1200 switches supporting

power workgroups, as well as to high-

density System 5000BH, Centillion 100,

or Centillion 50 LAN-ATM edge switches

deployed in wiring closets across the

network. These edge switches provide full

integration between the ATM backbone

and existing Ethernet and Token Ring

LANs via LAN Emulation (LANE).

By adhering to the ATM Forums

Multiprotocol Over ATM (MPOA)

standard, the Centillion architecture

delivers direct Layer 3 interconnectionbetween switches, eliminating traffic

latencies at the router. The fully-meshed

topology provides an extremely fault-

tolerant, resilient architecture capable of

fast failover in the event of a component

failure, preserving network viability even

under adverse operating conditions.


TECHNICAL SPECIFICATIONSTable 3: Centillion 1000 ATM Switch Family Technical Specifications.

Microprocessors RISC 4300

Memory Specifications

DRAM

Centillion 1600, Centillion 1400 64 MB

Centillion 1200 32 MB

Flash Memory

Centillion 1600, Centillion 1400 Internal Flash 16 MB

Centillion 1600, Centillion 1400 PCMCIA Flash 20 MB (2 per processor)

Centillion 1200 PCMCIA Flash 10 MB

Standards Compliance ATM Forum UNI 3.0/3.1/4.0

ATM Forum Traffic Management 4.0 (UBR, VBR-rt, VBR-nrt, CBR, ABR)

ATM Forum Traffic Policing (UPC-dual leaky bucket)

ATM Forum Private Network Node Interface (PNNI 1.0)

ATM Forum Interim Interswitch Signaling Protocol (IISP)

ATM Forum Integrated Local Management Interface (ILMI)

ATM Forum LAN Emulation (LANE 1.0)

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Table 3: Centillion 1000 ATM Switch Family Technical Specifications.

Optical Fiber Specifications

Single-mode fiber 9.5/125 m

Multimode fiber 62.5/125 m or 50/125 m

Electrical Specifications

AC line voltage 90-264 VAC, 47-63 Hz

DC line voltage 48 VDC

Centillion 1600

Power Consumption 1200 W max

Volt amperes rating 1300 VA maxThermal rating 4100 BTU/hr max

Centillion 1400


Volt amperes rating 820 VA max

Thermal rating 2389 BTU/hr max

Centillion 1200


Volt amperes rating 333 VA max

Thermal rating 1074 BTU/hr max

Physical Dimensions

Centillion 1600 (H) 26.4 in. x (W) 17.1 in. x (D) 17.7 in.

[(H) 67.05 cm x (W) 43.43 cm x (D) 44.9 cm]

Centillion 1400 (H) 10.75 in. x (W) 17.25 in. x (D) 16.2 in.

[(H) 27.3 cm x (W) 43.8 cm x (D) 41.14 cm]

Centillion 1200 (H) 4.5 in. x (W) 17.2 in. x (D) 16 in.

[(H) 11.43 x (W) 43.68 cm x (D) 40.64 cm]

Weight

Centillion 1600 168 lb. (76 kg) loaded (max)

Centillion 1400 66 lb. (30 kg) loaded (max)

Centillion 1200 24.3 lb. (11 kg) loaded (max)

Environmental Specifications

Operating temperature 41o to 104o F (5o to 40o C)

Storage temperature 68o to 158o F (20o to 70o C)

Operating humidity 80% maximum relative humidity, noncondensingStorage humidity 95% maximum relative humidity

Operating altitude 10,000 ft (3000 m) maximum


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Table 3: Centillion 1000 ATM Switch Family Technical Specifications.

Electromagnetic Emissions

Meets requirements of FCC Part 15, subparts A & B, Class A

EN 55 022 (CISPR 22:1985)

EN 50082-1

VCCI Class A

Electromagnetic Susceptibility

Electrostatic Discharge (ESD) IEC 801-2 ESD to 8 kV

Radiated Electromagnetic Field IEC 801-3 RFI 3V/m

Electrical Fast Transient/Burst IEC 801-4 EFT Level 2

Safety Agency Approvals UL listed (UL 1950) CSA 22.2 #950

Designed to meet UL94-V1 flammability requirements

Agency Approvals CE Compliant, AUSTEL TS001, AS3260, AS3548 Class A & B

ORDERING INFORMATIONTable 4: Centillion 1000 Multiservice Switches Ordering Information.

Order Number Description

Centillion 1000 Base Systems

DQ1302001 Centillion 1600 10 Gbps ATM Core Switch including 16-slot Chassis, Power Supply,

10 Gbps Switch Fabric/Processor Module, and PNNI License

DQ1302002 Centillion 1600 10 Gbps ATM Core Switch including 16-slot Chassis, Dual Redundant

Power Supplies, Dual Redundant 10 Gbps Switch Fabric/Processor Modules, and PNNI License

DQ1302003 Centillion 1400 5 Gbps ATM Core Switch including 8-slot Chassis, Power Supply,

5 Gbps Switch Fabric/Processor Module, and PNNI License

DQ1302004 Centillion 1400 5 Gbps ATM Core Switch including 8-slot Chassis, Dual Redundant

Power Supplies, Dual Redundant 5 Gbps Switch Fabric/Processor Modules, and PNNI License

DQ1302005 Centillion 1200 2.5 Gbps ATM Core Switch including 4-slot Chassis, Power Supply,

2.5 Gbps Switch Fabric/Processor Module, and PNNI License

Centillion 1000 ATM LAN/WAN Modules

DQ1304018 Single Port OC-12c Long Reach Single-mode SC Fiber Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304001 Single Port OC-12c Intermediate Reach Single-mode SC Fiber Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304014 Single Port OC-12c Multimode SC Fiber Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304002 Single Port OC-3c Long Reach Single-mode SC Fiber Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304003 4-Port OC-3c Intermediate Reach Single-mode SC Fiber Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304004 4-Port OC-3c Multimode SC Fiber Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304005 4-Port 155 Mbps UTP Module for the Centillion 1600, 1400, and 1200 ATM Switches


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Acronym Glossary

AAL1 ATM Adaptation Layer 1

ABR Available Bit R ate

AC Alternating Current

ATM Asynchronous Transfer Mode

BN Backbone Node

BNC Bayonet Neill Concelmanconnector

BTU British Thermal Unit

CAS Channel Associated Signaling

CBR Constant Bit Rate

COAX Coaxial Cable

DC Direct Current

DRAM Dynamic Random AccessMemory

DS1 Digital Signal, L evel 1

E1 European (digital signal level) 1

EFCI Explicit Forward CongestionIndicator

EPD Early Packet Discard

ESD Electrostatic Discharge

IISP Interim Interswitch SignalingProtocol

ILMI Intergrated Local ManagementInterface (ATM Forum)

LAN Local Area Network

LANE Local Area Network Emulation

MPOA Multiprotocol over ATM

MX Mail Exchanger (Internet)

NNI Network-to-Network Interface

OC Optical Carrier

PBX Private Branch Exchange

PCMCIA Personal Computer MemoryCard International Association

PNNI Private Network-to-NetworkInterface

PVC PermanentVirtual Circuit

QoS Quality of Service

RISC Reduced Instruction SetComputer

SC Session ControlSVC Switched Virtual Circuit

TDM Time Division Multiplexed

UBR Unspecified Bit Rate

UPC Usage Parameter Control

VBR Variable Bit R ate

VCCI Voluntary Control Councilfor Interference

VCI Virtual Circuit Identifier

VPI Virtual Path Identifier

WAN Wide Area Network

Table 4: Centillion 1000 Multiservice Switches Ordering Information.

Centillion 1000 ATM WAN Modules

DQ1304006 2-Port DS3 COAX WAN Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304007 2-Port E3 COAX WAN Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304008 4-Port DS1 WAN Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304009 4-Port E1 WAN Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304010 4-Port DS1 Circuit Emulation Module for the Centillion 1600, 1400, and 1200 ATM Switches

DQ1304011 4-Port E1 Circuit Emulation Module for the Centillion 1600,1400, and 1200 ATM Switches

Centillion 1000 Options/Spares

DQ1311001 Centillion 1600 10 Gbps Switch Fabric/Processor Module

DQ1311002 Centillion 1600 100 to 240 VAC Redundant Power Supply Unit

DQ1311003 Centillion 1600 -48 volt DC Redundant Power Supply Unit

DQ1311004 Centillion 1600 Rack Mount Kit

DQ1311005 Centillion 1600 Spare Fan Unit

DQ1311007 Centillion 1400 5 Gbps Switch Fabric/Processor Module




DQ1311011 Centillion 1200 2.5 Gbps Switch Fabric/Processor Module




DQ1311015 Centillion 1200 Ethernet Out-of-Band Port Card

DQ1311016 Centillion 1000 20 Mbps PCMCIA Flash Card

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United States

4401 Great America ParkwaySanta Clara, CA 95054

T. 1-800-822-9638

http://www.nortelnetworks.com

Copyright 1999 Northern Telecom. All rights reserved.

Bay Networks and BN are registered trademarks, and Centillion, SpeedView, and System 5000 are trademarks of Bay Networks,

Inc. NORTEL, NORTEL NETWORKS, the NORTEL NETWORKS corporate logo, the globemark design, and HOW THEWORLD SHARES IDEAS are trademarks of Northern Telecom Limited. All other brand and product names are t rademarks or

registered trademarks of their respective holders. Information in this document is subject to change without notice. Northern

Telecom assumes no responsibility for any errors that may appear in this document. Printed in USA.

Canada

8200 Dixie Road, Suite 100Brampton, Ontario

L6T 5P6 Canada

T. 1-800-466-7835

cent_1000

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