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PacketCable  Project. Terry D. Shaw, Ph. D. CableLabs 303-661-3811 [email protected] Overview. Service concept Project structure and timeline Interoperability Testing. Characteristics of Cable’s High-Speed Data Service. Always on / Always connected

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PacketCable Project

Terry D. Shaw, Ph. D.

CableLabs

303-661-3811

[email protected]


Overview
Overview

  • Service concept

  • Project structure and timeline

  • Interoperability Testing


Characteristics of cable s high speed data service
Characteristics of Cable’s High-Speed Data Service

  • Always on / Always connected

  • Speed scales depending upon need

    • High speed > e.g. Internet Access

    • Low speed > e.g. Telemetry

    • Medium speed > e.g. Telephony

  • Streaming / Isochronous more difficult


Integrated services network
Integrated Services Network

DATA

VIDEO

Downstream

  • Analog & Digital Broadcast

  • Video on Demand

  • Other

Video Control

Upstream

DATA


Service concept

Voice Telephony

Local

LEC Bypass

Long Distance

Video Telephony

Other Services Over “Telco Circuit”

PBX Extension

Fax PLUS

Service Concept

Initial Services:

Subsequent:


Network architecture

PSTN

Cable

Intranet

Internet

Network Architecture

CableLabs

Node

MSO 2

Node

MSO 1

Node

PBX

MSO 3

Node

MSO 4

Node

MSO 7

Node

MSO 5

Node

MSO 6

Node


Packetcable concept
PacketCable™ Concept

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

  • Hop off data network to PSTN only as last resort


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

Applications

Specification effort

focuses on applications

layer software and

hardware components

Network

Transport

Physical


Project objectives
Project Objectives

  • Develop overlay packet network for cable systems

    • Support broad family of services

  • Open, interoperable standards for North American cable market

  • Initial focus on IP telephony and video

    • Described in Product Definition Statement


Project overview
Project Overview

  • Four focused areas of effort

    • Product definition

    • Technical specification/reference architecture

    • Product testing

    • Information sharing


Product specification working group objectives
Product Specification Working Group Objectives

  • Translate product definition statement into functional/technical requirements

  • Develop reference architecture/technical specification necessary for implementation

    • Identify timeline for phased approach

  • Communicate functional requirements of industry to vendor community

  • Build on existing standards


Product evaluation
Product Evaluation

  • Goal: Laboratory testing of IP products

    • Performance across cable systems

    • Technology validation

    • Identify and specify key quality parameters

    • Interoperability

  • Timeline:

    • Experiential: November 1997 - June 1998

    • Interoperability: March 1998 - December 1998


Fast track performance validation
Fast-Track Performance Validation

  • Basic system operations: “Does it work?”

  • Validation of protocol interoperability

  • Test key parameters under stressed conditions

    • Traffic loading and latency issues

    • Network integrity

    • Quality of Service (QoS)


Vendor evaluation test setup

PSTN

PSTN

GW

Cable

Intranet

CMTS

GK

GW

HEADEND

LAN

GW

HFC

Network

Internet

CMTS

GW

GK

HFC

Network

H.323

Terminal

H.323

Terminal

Vendor Evaluation Test Setup

HEADEND

LAN



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