© 1997 CableLabs® Proprietary and Confidential

PacketCable Project PacketCable Project

Terry D. Shaw, Ph. D.Terry D. Shaw, Ph. D.

CableLabsCableLabs

303-661-3811303-661-3811

t.shaw@cablelabs.comt.shaw@cablelabs.com

© 1997 CableLabs® Proprietary and Confidential

OverviewOverview

Service conceptService concept Project structure and timeline Project structure and timeline Interoperability TestingInteroperability Testing

© 1997 CableLabs® Proprietary and Confidential

Characteristics of Cable’s High-Speed Data ServiceCharacteristics of Cable’s High-Speed Data Service Always on / Always connectedAlways on / Always connected Speed scales depending upon needSpeed scales depending upon need

High speedHigh speed >> e.g. Internet Accesse.g. Internet Access Low speed Low speed >> e.g. Telemetrye.g. Telemetry Medium speedMedium speed >> e.g. Telephonye.g. Telephony

Streaming / Isochronous more difficultStreaming / Isochronous more difficult

© 1997 CableLabs® Proprietary and Confidential

Integrated Services NetworkIntegrated Services Network

DATA

Video Control

DATA

VIDEO•Analog & Digital Broadcast•Video on Demand•Other

Downstream

Upstream

© 1997 CableLabs® Proprietary and Confidential

Service ConceptService Concept

Voice TelephonyVoice Telephony LocalLocal LEC BypassLEC Bypass Long DistanceLong Distance

Video TelephonyVideo Telephony Other Services Other Services

Over “Telco Over “Telco Circuit”Circuit”

PBX ExtensionPBX Extension Fax PLUSFax PLUS

Initial Services: Subsequent:

© 1997 CableLabs® Proprietary and Confidential

Network ArchitectureNetwork Architecture

PBX

InternetPSTN

CableLabsNode

MSO 2Node

MSO 5Node

MSO 4Node

MSO 1Node

MSO 6Node

MSO 7Node

Cable Intranet

MSO 3Node

© 1997 CableLabs® Proprietary and Confidential

PacketCable™ Concept PacketCable™ Concept

Packet-based Packet-based applications running applications running over nationwide mesh over nationwide mesh of cable and of cable and backbone IP networksbackbone IP networks

Hop off data network Hop off data network to PSTN only as last to PSTN only as last resortresort

© 1997 CableLabs® Proprietary and Confidential

PacketCable™ Concept (cont’d) PacketCable™ Concept (cont’d)

Specification effortSpecification effortfocuses on applicationsfocuses on applicationslayer software and layer software and hardware componentshardware components

PhysicalPhysical

TransportTransport

NetworkNetwork

ApplicationsApplications

© 1997 CableLabs® Proprietary and Confidential

Project ObjectivesProject Objectives

Develop overlay packet network for cable Develop overlay packet network for cable systems systems Support broad family of servicesSupport broad family of services

Open, interoperable standards for North Open, interoperable standards for North American cable marketAmerican cable market

Initial focus on IP telephony and videoInitial focus on IP telephony and video Described in Product Definition StatementDescribed in Product Definition Statement

© 1997 CableLabs® Proprietary and Confidential

Project OverviewProject Overview

Four focused areas of effortFour focused areas of effort Product definitionProduct definition Technical specification/reference architectureTechnical specification/reference architecture Product testingProduct testing Information sharingInformation sharing

© 1997 CableLabs® Proprietary and Confidential

Product Specification Working Group ObjectivesProduct Specification Working Group Objectives Translate product definition statement into Translate product definition statement into

functional/technical requirementsfunctional/technical requirements Develop reference architecture/technical Develop reference architecture/technical

specification necessary for implementationspecification necessary for implementation Identify timeline for phased approach Identify timeline for phased approach

Communicate functional requirements of Communicate functional requirements of industry to vendor communityindustry to vendor community

Build on existing standardsBuild on existing standards

© 1997 CableLabs® Proprietary and Confidential

Product EvaluationProduct Evaluation

Goal: Laboratory testing of IP productsGoal: Laboratory testing of IP products Performance across cable systemsPerformance across cable systems Technology validationTechnology validation Identify and specify key quality parametersIdentify and specify key quality parameters InteroperabilityInteroperability

Timeline:Timeline: Experiential: November 1997 - June 1998Experiential: November 1997 - June 1998 Interoperability: March 1998 - December 1998Interoperability: March 1998 - December 1998

© 1997 CableLabs® Proprietary and Confidential

Fast-Track Performance ValidationFast-Track Performance Validation Basic system operations: “Does it work?”Basic system operations: “Does it work?” Validation of protocol interoperabilityValidation of protocol interoperability Test key parameters under stressed Test key parameters under stressed

conditionsconditions Traffic loading and latency issuesTraffic loading and latency issues Network integrityNetwork integrity Quality of Service (QoS)Quality of Service (QoS)

© 1997 CableLabs® Proprietary and Confidential

PSTNCable

Intranet

Internet

HEADENDLANGW

GK

H.323Terminal

H.323Terminal

CMTSGW

HFC Network

HEADENDLAN

GW

GWCMTS

GK

HFCNetwork

PSTN

Vendor Evaluation Test SetupVendor Evaluation Test Setup

© 1997 CableLabs® Proprietary and Confidential

www.packetcable.comwww.packetcable.com