voip over cable networks

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SOME THOUGHTS… Xiaolin Lu Softswitch 2001

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Invited speech on SoftSwitch 2001 on providing VoIP over cable networks.

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Page 1: VoIP Over Cable Networks

SOME THOUGHTS…

Xiaolin Lu

Softswitch 2001

Page 2: VoIP Over Cable Networks

What is this?What is this?

A presentation on Softswitch 2001

Introduction of the VoIP over cable

evolution – from semi to full +

thoughts on issues beyond technology

Page 3: VoIP Over Cable Networks

THOUGHTSTHOUGHTS

Reality

Evolving

Page 4: VoIP Over Cable Networks

DriversDrivers

Cost Reduction

External: Capacity cost

(regulation and tariffs)

Internal: common platform

Value Liberating

Open platform

Create stickiness

Page 5: VoIP Over Cable Networks

MOTIVATIONSMOTIVATIONS

Internal cost savingInternal cost saving

CommodatizeCommodatize othersothers

Create stickinessCreate stickiness

Control the demarcation pointsControl the demarcation points

Internal cost savingInternal cost saving

CommodatizeCommodatize othersothers

Create stickinessCreate stickiness

Control the demarcation pointsControl the demarcation points

Cable CMTS SLA

DOCSIS Others’

5E SLA Others’ LEC

Voice

GW

2nd line

GW Others’ IXC

Voice

Backbone

Page 6: VoIP Over Cable Networks

DEMARCATION POINTSDEMARCATION POINTS

HG POP

Internal

Networks

External

Networks

Presentation

Classifying

Routing

Operation

Services

Transition

Connectivity

Conversion

Voice

Data

Video

A&R

A&R A&R

Page 7: VoIP Over Cable Networks

CONSTRAINTSCONSTRAINTS

Compatibility

Page 8: VoIP Over Cable Networks

Case Study:Case Study: Convergence Over CableConvergence Over Cable

Services CPE HE Metro Backoffice Interconnect

Voice NIU HDT SONET Proprietary Circuit

Data CM CMTS IP Standard

IP

volume

Video STB Proprietary Proprietary Proprietary N/A

Convergence

Common platform

Protect investment

Control

SLA

Volume

Page 9: VoIP Over Cable Networks

Case Study: Case Study: VoIP over CableVoIP over Cable

CMTS

HFC

NIU

CM

HDT 5ESS

Router

SONET

Local IP

PSTN

Internet

Coexist NIU/HDT, CM/CMTSCoexist NIU/HDT, CM/CMTS

Existing 5EExisting 5E

Coexist NIU/HDT, CM/CMTSCoexist NIU/HDT, CM/CMTS

Existing 5EExisting 5E

Cost saving in accessCost saving in access Cost saving in accessCost saving in access Intelligent IP metro networksIntelligent IP metro networks

Classify Classify ---- PolicyPolicy

Accommodate legacyAccommodate legacy

Intelligent IP metro networksIntelligent IP metro networks

Classify Classify ---- PolicyPolicy

Accommodate legacyAccommodate legacy

Page 10: VoIP Over Cable Networks

AN INTERIM SOLUTIONAN INTERIM SOLUTION

PSTN

Internet

Local IP

Network

Integrated voice and data over HFC network

Utilize 5ESS platform for voice interconnect & features

PH SONET

5ESS

BTIBTI

IP

DT

Ro

ute

r

CM

TS

HFCHFC

Page 11: VoIP Over Cable Networks

MULTIMULTI--SERVICE PLATFORMSERVICE PLATFORM

CMTS HFC

NIU

CM

HDT RGW

Managed

IP Network

PSTN

Intelligent EdgeIntelligent Edge

Classify Classify –– PolicyPolicy

QoS bridgingQoS bridging

Intelligent EdgeIntelligent Edge

Classify Classify –– PolicyPolicy

QoS bridgingQoS bridging

MTA CMS

MG

SG

ISP1

ASP2

PipelinePipeline

PolicyPolicy--based based

routingrouting

PipelinePipeline

PolicyPolicy--based based

routingrouting

GW & BackofficeGW & Backoffice

Common platformCommon platform

Not just emulationNot just emulation

GW & BackofficeGW & Backoffice

Common platformCommon platform

Not just emulationNot just emulation

Open platform for value creation

Page 12: VoIP Over Cable Networks

PacketCablePacketCable 1.0 1.0 –– InteroperabilityInteroperability

MSO A

Zone

CMS

V

Gateway

PSTN

MSO C

Zone

CMS

V

Gateway

PSTN

MSO B

Zone

CMS

V

Gateway

PSTN

Specifications

Released 12/7/99

Compliance

Testing Begun

Page 13: VoIP Over Cable Networks

PacketCablePacketCable 1.1 1.1 -- Primary LinePrimary Line

MSO A

Zone

CMS

V

Gateway

PSTN

MSO C

Zone

CMS

V

Gateway

PSTN

MSO B

Zone

CMS

V

Gateway

PSTN

Specifications

Released 11/28/00

Powering

SNMP

SNMP

SNMP

Power Mgmt V

V

V

Availability

Page 14: VoIP Over Cable Networks

PacketCablePacketCable 1.2 1.2 -- InterconnectInterconnect

MSO A

Zone

MSO B

Zone

MSO C

Zone

Managed

IP Backbone

MSO A

Zone

Border

CMS

Border

CMS

Border CMS

V

Gateways

V

V

Gateways

Gateways

Local Zones

Administrative Domains

PSTN

PSTN

PSTN

Specs Released 12/29/00

Page 15: VoIP Over Cable Networks

EVOLVINGEVOLVING

Current Softswitch

Define connections

Emulate functions

Intelligent Edge

Define policy

Connectivity

Intelligent CPE

Feature rich

ETE control

Function re-

location

Value dilution

Network stickiness

Service platform

Page 16: VoIP Over Cable Networks

FOOD FOR THOUGHTFOOD FOR THOUGHT

Protect Investment