Company and Product Overview

Company OverviewCompany Overview

Mission Provide core routingtechnologies and solutions for next generation carrier networks

Founded 1996

Headquarters N. Billerica, MA

First Product Shipped Q4 1999

Existing Customer Commitments $45M+

Employees 360+

Awards

0

4

8

12

16

20

1999 2000 2001 2002 2003 2004

Explosive Demand for Data ServicesExplosive Demand for Data Services

Peak-Hour Internet Bandwidth Demand

Source: Pioneer Consulting LLCSource: Pioneer Consulting LLC

120% CAGR

(terabits per second)(terabits per second)

$0

$4,000

$8,000

$12,000

$16,000

1999 2000 2001 2002 2003Conservative Aggressive

Worldwide Carrier Router MarketWorldwide Carrier Router Market

Source: Ryan Hankin and Kent

75% CAGR

Core Router Market(in millions)(in millions)

New Router Solutions are Required to New Router Solutions are Required to Address the Bottleneck in the CoreAddress the Bottleneck in the Core

CARRIER OPTICAL

TRANSPORTDWDM

and OPTICAL

SWITCHES

Mismatch between Transmission Speeds and Capacity

Existing Carrier

Equipment

SONET

VoIP Gateways

Cable ModemAggregation

Gigabit Ethernet

Digital SubscriberLine Aggregation

Gigabit Routers

ATM

DWDM and OPTICAL

SWITCHES

SONET

VoIP Gateways

Cable ModemAggregation

Gigabit Ethernet

Digital SubscriberLine Aggregation

Gigabit Routers

ATM

Existing Carrier Equipment

Mismatch between Transmission Speeds and Capacity

OC-3OC-3

OC-48OC-48

OC-12OC-12

Limitations of Existing RoutersLimitations of Existing Routers

Carrier Optical Transport

Router Deployment Over Time

OC-12OC-12

OC-48OC-48

OC-192OC-192

Transport Evolution Over Time

EDGE CORE

SONET and

DWDM

DWDM and OPTICAL

SWITCHES

SONETSONET

A Single POP Backbone

Today’s model of Intra-POP router clusters is insufficient

Clustering Not a SolutionClustering Not a Solution

70% of router capacity is lost by clustering

Inefficient use of dedicated bandwidth

Significant network management problems

Avici’s TSR simplifies the POP

The SolutionThe Solution

The Next Generation Carrier The Next Generation Carrier NetworkNetwork

CARRIER OPTICAL

TRANSPORT

Existing Carrier

Equipment

SONET

VoIP Gateways

Cable ModemAggregation

Gigabit Ethernet

Digital SubscriberLine Aggregation

Gigabit Routers

ATM

SONET

VoIP Gateways

Cable ModemAggregation

Gigabit Ethernet

Digital SubscriberLine Aggregation

Gigabit Routers

ATM

Existing Carrier Equipment

DWDM and OPTICAL

SWITCHES

DWDM and OPTICAL

SWITCHES

AVICI TSR AVICI TSR

Avici Composite Links

Avici Composite Links

Carrier Class Reliability

ISP to Backbone Scaling– Very cost effective at small configurations– Extremely cost effective at large configurations

Composite Links

Dynamic Provisioning

The Avici TSR - Superior The Avici TSR - Superior TechnologyTechnology

Velociti™ Switch Fabric

Toroidal direct connect fabric

Scales to 560 active modules

Each element adds switching & forwarding capacity – Generation 1 - 60 Gbps– Generation 2 - 240 Gbps

Each module connects to6 other modules

Path diversity– Resilient– Non-blocking

Module I/O Architecture

O/EConversion

SONETTermination

PacketQoS

MulticastExpander &

PacketScheduler

ForwardingEngine

Control ProcessorFE Interface

PPP/MPLSProcessing

E/OConversion

SONETTermination

PPP/MPLSProcessing

Switc

h

Fabr

ic

BA

CK

PLA

NE

O/EConversion

Packet Memory

64 MB

PCMCIA

PowerPCProcessor

Console

Fast EthernetFast

Ethernet

HDD

Server Memory 320Mb

OSPF BGP4 IS-IS

MBGP PIMMSDP

RSVP CLI

SNMP

FTP

Control ProcessorFE Interface

Software & System Architecture

SONETTermination

PacketQoS

MulticastExpander &

PacketScheduler

ForwardingEngine

Control ProcessorFE Interface

PPP/MPLSProcessing

E/OConversion

SONETTermination

PPP/MPLSProcessing

Switc

h

Fabr

ic

O/EConversion SONET

Termination

PacketQoS

MulticastExpander &

PacketScheduler

ForwardingEngine

Control ProcessorFE Interface

PPP/MPLSProcessing

E/OConversion

SONETTermination

PPP/MPLSProcessing

Switc

h

Fabr

ic

O/EConversion SONET

Termination

PacketQoS

MulticastExpander &

PacketScheduler

ForwardingEngine

Control ProcessorFE Interface

PPP/MPLSProcessing

E/OConversion

SONETTermination

PPP/MPLSProcessing

Switc

h

Fabr

ic

O/EConversion

Bay & Environment Controller

Bay & Environment Controller

Routing and Configuration

tasks

Forwarding and Fabric

Routing tasks

PCMCIA

PowerPCProcessor

Console

Fast EthernetFast

Ethernet

SSD

Server Memory 320Mb

OSPF BGP4 IS-IS

MBGP PIMMSDP

RSVP CLI

SNMP

FTP

Control ProcessorFE Interface

SONETTermination

PacketQoS

MulticastExpander &

PacketScheduler

ForwardingEngine

Control ProcessorServer Interconnect

PPP/MPLSProcessing

E/OConversion

SONETTermination

PPP/MPLSProcessing

Switc

h

Fabr

ic

O/EConversion

Packet Memory

64 Mb

ModuleControl Software