VoIP Over Cable Networks
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SOME THOUGHTS…
Xiaolin Lu
Softswitch 2001
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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
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THOUGHTSTHOUGHTS
Reality
Evolving
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DriversDrivers
Cost Reduction
External: Capacity cost
(regulation and tariffs)
Internal: common platform
Value Liberating
Open platform
Create stickiness
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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
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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
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CONSTRAINTSCONSTRAINTS
Compatibility
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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
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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
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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
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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
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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
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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
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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
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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
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FOOD FOR THOUGHTFOOD FOR THOUGHT
Protect Investment