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Deploying Cable Access Technology Session 206
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206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Deploying Cable Access Technology Session 206
206 1071_05F9_c1
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr
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Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics
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© 1999, Cisco Systems, Inc.
Abstract • Concepts and criteria to establish an access network over HFC (Hybrid-FiberCoax) using a DOCSIS (Data Over Cable Service Interface Specification) platform is presented • Hardware configurations compatible with the HFC plant and business case are prescribed to ensure a scalable access and backbone network supporting subscriber growth with minimal ongoing physical plant or IP network disruption 206 1071_05F9_c1
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We need to figure out how to build it, how to deploy it, how to support it, how to maintain it Michael Armstrong AT&T chairman
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© 1999, Cisco Systems, Inc.
Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Factors for Success
Investors
Products
Business Case
Standards Market Dynamics 206 1071_05F9_c1
Infrastructure
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Market Dynamics • Measurable demand for HS data Enterprise (VPN) Web browsing Telecommute SOHO
• • • • • • 206 1071_05F9_c1
Telephony (VoIP) Video Ad insert Gaming Future (undefined) Wireless
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Market Dynamics Data, a “Growth Opportunity” • Acceptance and penetration of the Internet
Data
Video Voice
BW
• Data bandwidth/cost beating Moore’s Law • Open standards for DOCSIS and digital TV 206 1071_05F9_c1
Today
Time
Bandwidth vs. Time
11
© 1999, Cisco Systems, Inc.
“
Cox saw continued growth, both in our cable television business and in our deployment of new residential and commercial services Jim Robbins, President and CEO, Cox Communications
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Customer demand for the products is out there; they’re willing to buy the products from us Mark Major Director of Finance, Cox Communications
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Study and Understand the Market Requirements, Expectation, and Dynamics!
“
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Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics © 1999, Cisco Systems, Inc.
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Standards • Benefits of standards Multisystem connectivity Product interoperability User product choice possible Reduced risk of system obsolescence Competitive pricing environment Promotes product advancements Fosters new applications 206 1071_05F9_c1
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Standards • DOCSIS (ITU J112) (Data Over Cable System Interface Specification) IP (packet-based) MPEG frame format DOCSIS 1.0 (data) DOCSIS 1.1 (VoIP)
• CableLabs ‘Qualified’ CMTS (Cable Modem Terminating System) • CableLabs ‘Certified’ CPE 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Understand the Benefits of “Standards”-Based Products vs. Proprietary; Study the Products and their Capabilities
“
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Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics © 1999, Cisco Systems, Inc.
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
New World Vision An End-to-End IP-Based Solution • IP ensures bandwidth efficiency • IP offers reduced networking costs • IP supports operational efficiency
All Services Converge to a Common Multi-Media IP Platform 206 1071_05F9_c1
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“New World Vision” Backbone Switch (BPX)
Telecommuter, SOHO
Cache Servers
Backbone Router (GSR)
SONET/ SDH Ring Cisco 5300 IP/ PSTN Gateways
Residential
HFC
uBR7246
MCNS Security
DOCSIS IF3
Cable Modem
I-Phone H.323 S/W
10 0B TX ase
Data Center LAN Switch
X eT as 0B 10
Channelized T1’s
PSTN
Telco Return Servers Office/SOHO
H.323 Gatekeeper
Internet 206 1071_05F9_c1
External Router
OSS Machines
Local Director
Caches, Servers
Firewall 21
© 1999, Cisco Systems, Inc.
“…broadband data is very important, everybody acknowledges that time and technology are moving, applications will converge and devices will converge Michael Armstrong AT&T chairman 206 1071_05F9_c1
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The convergence of optical and internetworking technologies will let service providers such as Thrunet build high-speed multimedia networks that are considerably cheaper than traditional TDM telecom networks. Migration to the new world of integrated voice, video and data networks based on packet architectures is inevitable, and rapid adoption is a matter of survival for companies and service providers, Thrunet has shown true vision by recognizing the advantages of this new infrastructure. Dr. Hong Sung-Won President of Cisco Systems Korea
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© 1999, Cisco Systems, Inc.
Recognize, Understand, and Adopt Technological and Networking Innovation to Avoid the Obsolescence of Capital and to Ensure Competitiveness
“
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Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics © 1999, Cisco Systems, Inc.
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
© 1999, Cisco Systems, Inc.
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Cisco Cable Solutions Cisco DOCSIS Products • Cisco uBR 7223/uBR7246 (Universal BroadBand router) Cisco router integrated with: CMTS (Cable Modem Terminating System) BackBone port adapters
• Cisco uBR 904/uBR924 CM • CableLabs ‘certified’ multi-vendor CPE 206 1071_05F9_c1
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Cisco Cable Solutions Cisco IP Access Platform uBR7246
uBR904 SOHO CM uBR924 SOHO CM e/w VoIP 206 1071_05F9_c1
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Cisco Cable Solutions Standard Port Adapters
RF Chassis
The Cable System
Two Slots Available
Modem Cards
NPE 150/NPE 200
Cisco 7200 Electronics Four Slots Available
The Network
uBR7246 NPE-150 NPE-200 206 1071_05F9_c1
100 Kpps 130 Kpps
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uBR-MC11 uBR-MC14 uBR-MC16 28
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Cisco Cable Solutions Effective Data Rates 200 KHz BW
400 KHz BW
800 KHz BW
1600 KHz BW
3200 KHz BW
QPSK
300 kbs
600 kbs 1200 kbs 2300 kbs
4500 kbs
16 QAM
600 kbs 1200 kbs 2300 kbs 4500 kbs
9000 kbs
6000 KHz BW
64 QAM
27 Mbs
256 QAM
38 Mbs
RF Bandwidth and Modulation choices as specified by DOCSIS
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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Investors Investors Role • Assume risk • Expect good return • Implement only a sound business case
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© 1999, Cisco Systems, Inc.
Investors Demonstrated Growth in Penetration Number of Modems
Number of Homes Passed with Two Way Plant
Percent Penetration
3/31/99
.46 M
15 M
3.07
12/31/98
.331 M
13.2 M
2.51
9/30/98
.210 M
10 M
2.10
6/30/98
.147 M
7.9 M
1.86
3/31/98
.090M
5.7 M
1.58
12/31/97
.050 M
4.5 M
1.11
9/30/97
.026 M
2.7 M
0.96
Source: @Home
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Investor Justification!
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Investors Recent CATV Consolidations • • • • •
AT&T purchase of TCI AT&T purchase of Media One Adelphia purchase of Century Cox purchase of TCA Cox purchase of Media General
High-Capacity HFC Cable Plant Is the Common Denominator to Support IP 206 1071_05F9_c1
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The promise is great: a system that could allow AT&T to provide competition against Baby Bells in local phone markets through cable connections—even while delivering which could allow viewers to select their interactive television, own angles or replays, and lightning-quick Internet access to household more accustomed to molasses-like speeds Seth Schiesel New York Times May 7, 1999
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Business Case Parameters Five Year Plan • Plant growth at 0.75% per annum • HS data service products
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Residential
256 Kbs DS, 128 Kbs US
Business
1.5 Mbs DS, 512 Kbs US
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Business Case Parameters Penetration Rates Residential Customer: 3% Year 1 30% CAGR Business Customer : (Per Hub/Head-end)
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TwoYear 2 Add one per year
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Is the Business Case Reasonable? Are Projections Valid?
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Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Infrastructure • HFC 750 MHz downstream 5-42 MHz upstream
• Head end 25 K homes passed 25 nodes (average of 1 K home passed)
• Hub 1 and 4 40 K homes passed 60 nodes (average of .65 K home passed)
• Hub 2 30 K homes passed 60 nodes (average of .50 K home passed)
• Hub 3 30 K homes passed 20 nodes (average of 1.50 K home passed) 206 1071_05F9_c1
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Infrastructure Upstream CNR Characteristics • Head-end CNR 30 to 36, average 32
• Hub 1 and 4 CNR 30 to 40 average 33
• Hub 2 CNR 35to 41 average 36
• Hub 3 CNR 27 to 36 average 29 206 1071_05F9_c1
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Infrastructure • Backhaul Dark fiber available in ring configuration
• Available spectrum No restrictions on downstream frequency Upstream frequency limitations
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Head-end
800 KHz maximum
Hub 1 and 4
1600 KHz maximum
Hub 2
400 KHz maximum
Hub 3
3200 KHz maximum
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Infrastructure Node
Hub
Node
Node
6 MHz HBO CNN ESPN
#1
Head-end Node
Hub # 2
Node
COAX #4
Node
Node
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Hub
Hub # 3
Node
Tap
Drop
Node
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Infrastructure 15.6 MHz
17.55 MHz
Example Noise
Noise Useable GAP (1950 kHz)
Frequency
• Useable gaps dictate Upstream channel selection and bandwidth Spectrum management options Upstream data throughput 206 1071_05F9_c1
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Infrastructure Useable Spectrum Gaps From (KHz)
To (KHz)
GAP (KHz)
200 (KHz)
400 (KHz)
800 (KHz)
1600 (KHz)
3200 (KHz)
5000
5950
950
4
2
1
0
0
6200
7000
800
4
2
1
0
0
7300 9900 10150
9500 10100 11650
2200 200 1500
11 1 7
5 0 3
2 0 1
1 0 0
0 0 0
12050 13800 14350 15600
13600 14000 15100 17550
1550 200 750 1950
7 1 3 9
3 0 1 4
1 0 0 2
0 0 0 1
0 0 0 0
17900 18168
18068 21000
168 2832
0 14
0 7
0 3
0 1
0 0
21850 24990 26100 27410
24980 25670 26960 28000
3040 680 860 590
15 3 4 2
7 1 2 0
3 0 1 0
1 0 0 0
0 0 0 0
29700
40000
10300
51
25
12
6
3
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© 1999, Cisco Systems, Inc.
Infrastructure HFC
Cable Serving Area Fiber
n HOMES N
COAX
Head-End
Typically Fewer than Five Amplifiers in Cascade
• Multiple upstreams may be combined • The video signal is transmitted over fiber to the node, where it is converted to an electrical signal and forwarded to the subscriber over existing coaxial cable • Provision is made to support return traffic for advanced services 206 1071_05F9_c1
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Is the Business Case Reasonable? Are Projections Valid?
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Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics
© 1999, Cisco Systems, Inc.
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Is Your Current or Planned HFC Topology Compatible with Supporting New Services? It Might Not Be too Late! Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics © 1999, Cisco Systems, Inc.
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Hardware Selection • Cisco universal broadband router uBR7246 Redundant AC power supply NPE-200 network processing engine (130 Kpps) I/O controller e/w FE uBR-MC16C CMTS RF module POS (Packet Over SONET)—OC-3 SM 206 1071_05F9_c1
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Infrastructure HFC with IP Access
Total Network Management Node
uBR7246 < 100 Channels
Hub
CNN HBO
Broadband Router
ESPN FNN Node
Hub PSTN
Node
Internet
Node
Node
Hub
COAX
Tap
Node
Drop
Node
Cable Modem PC 206 1071_05F9_c1
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Hardware Selection What about Network Management ? • Network management is imperative Facilitates fault location Supports preventive maintenance Enhances customer support Monitors traffic and market trends 206 1071_05F9_c1
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Hardware Selection • Identify hardware components to meet the specific requirements of individual supporting locations Port adapters to support the backbone CMTS RF line modules to support access Choice of power option Router processing speed Auxiliary outputs, etc. 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Hardware Selection Establishing the Backbone Hub
Hub
PSTN Internet
Hub
Customer Traffic from n Hubs Brought to Head-End for Processing 206 1071_05F9_c1
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Traffic Analysis
• Analysis assumptions Residential activity tactor of 25% Business activity factor of 25% Data peak factor 8
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Traffic Analysis • Determining aggregated CNR when combining nodes Example: • Determine aggregated CNR for upstream signals having CNR of 37 dB, 34.5 dB, and 30 dB • See nomograph Total CNR = 28 dB 206 1071_05F9_c1
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© 1999, Cisco Systems, Inc.
Traffic Analysis 3.0 2.0
10 LOG Nomograph for Combining Two CNR
1.0 0.6 0.4 0.2
NOTE:
0.1
This Information Is Beneficial when Determining the Aggregated CNR of Multiple Upstream Signals
0.06
d
0.04 0.02 0.01 0.006 0.004 0
5
10
15
20
25
30
35
dB Difference between Two Performance Ratings © 1999, Cisco Systems, Inc.
58
B
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Traffic Analysis Head-End Customer—Traffic Profile
Homes Passed Residential Customer
Year 1
Year 2
Year 3
Year 4
Year 5
25000
25188
25376
25666
25758
750
982
1286
1685
2207
2
3
4
5
DS 64 M US 32 M
DS 84 M US 42 M
DS 110 M US 55 M
DS 144 M US 72 M
Business Customer Total Traffic 206 1071_05F9_c1
DS 48 M US 24 M
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Traffic Analysis Head-End Hardware Selection—Validation • Combine 3 nodes of 1 K homes, (average CNR of 32 dB) Resultant CNR approximately 27 dB OK
• Quantity of uBR-MC16 CMTS modules needed? 25 nodes/3 nodes per receiver = 9 receivers To support 9 receivers, 2 uBR-MC16C required
• Quantity of uBR7246 needed? 1 uBR7246 required 206 1071_05F9_c1
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Traffic Analysis Head-End Hardware Selection—Validation • Validate configuration against traffic needs 800 KHz US bandwidth available Downstream
54 Mbs available 18.1 Mbs required
Upstream
14.4 Mbs available (12 receivers) 10.8 Mbs activated (9 receivers) 9 Mbs required
Subscriber load
2207 residential 5 business
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Traffic Analysis Head-End Hardware Selection—Validation • Head-end hardware configured will support: 5 year plan without configuration change using 64 QAM downstream QPSK upstream 800 KHz upstream RF bandwidth Spare receivers can be activated for capacity
• Modulation selection and increased RF bandwidth will support greater load, without consideration of incremental hardware 206 1071_05F9_c1
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Traffic Analysis Hub 1 and 4 Customer—Traffic Profile
Homes Passed Residential Customer
Year 1
Year 2
Year 3
Year 4
Year 5
40000
40300
40602
40906
41213
1200
1571
2056
2696
3531
2
3
4
5
DS 102 M US 51 M
DS 134 M US 67 M
DS 176 M US 88 M
DS 230 M US 115 M
Business Customer Total Traffic 206 1071_05F9_c1
DS 77 M US 38.5 M
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Traffic Analysis Hub 1 and 4 Hardware Selection—Validation • Combine 4 nodes of .65 K homes, (average CNR of 33 dB) Resultant CNR approximately 27 dB OK
• Quantity of uBR-MC16 CMTS modules needed? 60 nodes/4 nodes per receiver = 15 receivers To support 9 receivers, 3 uBR-MC16C required
• Quantity of uBR7246 needed? 1 uBR7246 required 206 1071_05F9_c1
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Traffic Analysis Hub 1 and 4 Hardware Selection—Validation • Validate configuration against traffic needs 1600 KHz US bandwidth available Downstream
81 Mbs available 28.1 Mbs required (year 5)
Upstream
41.4 Mbs available (18 receivers) 34.5 Mbs activated (15 receivers) 14.3 Mbs required
Subscriber load
3531 residential 5 business
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Traffic Analysis Hub 1 and 4 Hardware Selection—Validation • Head-end hardware configured will support: 5 year plan without configuration change using 64 QAM downstream QPSK upstream 1600 KHz upstream RF bandwidth Spare receivers can be activated for capacity
Modulation Selection and Increased RF Bandwidth Will Support Greater Load, without Consideration of Incremental Hardware 206 1071_05F9_c1
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Traffic Analysis Hub 2 Customer—Traffic Profile
Homes Passed Residential Customer
Year 1
Year 2
Year 3
Year 4
Year 5
30000
30225
30452
30680
30910
900
1178
1544
2022
2648
2
3
4
5
DS 77 M US 38.5 M
DS 102 M US 51 M
DS 132 M US 66 M
DS 173 M US 86.5 M
Business Customer Total Traffic 206 1071_05F9_c1
DS 58 M US 29 M
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Traffic Analysis Hub 2 Hardware Selection—Validation • Combine 6 nodes of .5 K homes, (average CNR of 36 dB) Resultant CNR approximately 28 dB OK
• Quantity of uBR-MC16 CMTS modules needed? 60 nodes/6 nodes per receiver = 10 receivers To support 9 receivers, 2 uBR-MC16C required
• Quantity of uBR7246 needed? 1 uBR7246 required 206 1071_05F9_c1
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Traffic Analysis Hub 2 Hardware Selection—Validation • Validate configuration against traffic needs 400 KHz US bandwidth available Downstream
54 Mbs available 21.7 Mbs required (year 5)
Upstream
7.2 Mbs available (12 receivers) 6.0 Mbs activated (10 receivers) 10.8 Mbs required
Subscriber load 206 1071_05F9_c1
2648 residential 5 business 69
© 1999, Cisco Systems, Inc.
Traffic Analysis Hub 2 Hardware Selection—Validation • Hub 2 hardware configured will support: 2 year of year plan without configuration change using 64 QAM downstream QPSK upstream 400 KHz upstream RF bandwidth
Operator Can Build as Configured, and Overbuild for Year 3 of Business Plan, or Build now for Complete 5 Year Plan 206 1071_05F9_c1
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Traffic Analysis Hub 2 Hardware Selection—Validation • Combine 4 nodes of .5 K homes, (average CNR of 36 dB) Resultant CNR approximately 30 dB OK
• Quantity of uBR-MC16 CMTS modules needed? 60 nodes/4 nodes per receiver = 15 receivers To support 15 receivers, 3 uBR-MC16C required
• Quantity of uBR7246 needed? 1 uBR7246 required 206 1071_05F9_c1
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Traffic Analysis Hub 2 Hardware Selection—Validation • Validate configuration against traffic needs 400 KHz US bandwidth available Downstream
81Mbs available 21.7 Mbs required (year 5)
Upstream
10.8 Mbs available (18 receivers) 9.0 Mbs activated (15 receivers) 10.8 Mbs required
Subscriber load
2648 residential 5 business
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Traffic Analysis Hub 2 Hardware Selection—Validation • Hub 2 hardware configured will support: 4 year of year plan without configuration change using 64 QAM downstream QPSK upstream 400 KHz Upstream RF bandwidth
Operator Can Build as Configured, and Overbuild for Year 5 of Business Plan, or Build now for Complete 5 Year Plan 206 1071_05F9_c1
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Traffic Analysis Hub 2 Hardware Selection—Validation • Combine 3 nodes of .5 K homes, (average CNR of 36 dB) Resultant CNR approximately 31 dB OK
• Quantity of uBR-MC16 CMTS modules needed? 60 nodes/3 nodes per receiver = 20 receivers To support 15 receivers, 4 uBR-MC16C required
• Quantity of uBR7246 needed? 1 uBR7246 required 206 1071_05F9_c1
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Traffic Analysis Hub 2 Hardware Selection—Validation • Validate configuration against traffic needs 400 KHz US bandwidth available Downstream Upstream
Subscriber load 206 1071_05F9_c1
108 Mbs available 21.7 Mbs required (year 5) 14.4 Mbs available (24 receivers) 12.0 Mbs activated (20 receivers) 10.8 Mbs required 2648 residential 5 business 75
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Traffic Analysis Hub 2 Hardware Selection—Validation • Head-end hardware configured will support: 5 year of year plan without configuration change using 64 QAM downstream QPSK upstream 400 KHz upstream RF bandwidth
Modulation Selection and Increased RF Bandwidth Will Support Greater Load, without Consideration of Incremental Hardware 206 1071_05F9_c1
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Traffic Analysis Hub 3 Customer—Traffic Profile
Homes Passed Residential Customer
Year 1
Year 2
Year 3
Year 4
Year 5
30000
30225
30452
30680
30910
900
1178
1544
2022
2648
2
3
4
5
DS 77 M US 38.5 M
DS 102 M US 51 M
DS 132 M US 66 M
DS 173 M US 86.5 M
Business Customer Total Traffic 206 1071_05F9_c1
DS 58 M US 29 M
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Traffic Analysis Hub 3 Hardware Selection—Validation • Combine 2 nodes of 1.5 K homes, (average CNR of 29 dB) Resultant CNR approximately 26 dB OK
• Quantity of uBR-MC16 CMTS modules needed? 20 nodes/2 nodes per receiver = 10 receivers To support 15 receivers, 2 uBR-MC16C required
• Quantity of uBR7246 needed? 1 uBR7246 required 206 1071_05F9_c1
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Traffic Analysis Hub 3 Hardware Selection—Validation • Validate configuration against traffic needs 3200 KHz US bandwidth available Downstream
54 Mbs available 21.7 Mbs required (year 5)
Upstream
54 Mbs available (12 receivers) 45.0 Mbs activated (10 receivers) 10.8 Mbs required
Subscriber load
2648 residential 5 business
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Traffic Analysis Hub 3 Hardware Selection—Validation • Hub 3 hardware configured will support: 4 year of year plan without configuration change using 64 QAM downstream QPSK upstream 3200 KHz upstream RF bandwidth
The Number of Subscribers has Exceeded the Recommended 1K to 1.2 K per CMTS Module 206 1071_05F9_c1
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Traffic Analysis Hub 3 Hardware Selection—Validation • Operator may experience processing delay caused by excessive subscriber load on individual CMTS modules • Recommended limit is from 1000 to 1200 subscribers 206 1071_05F9_c1
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Traffic Analysis System Customer—Traffic Profile
Homes Passed Residential Customer
Year 1
Year 2
Year 3
Year 4
Year 5
165000
166238
167484
168740
170006
4950
6483
8491
11121
14566
10
15
20
25
DS 422 M US 211 M
DS 555 M US 276 M
DS 727 M US 362 M
DS 951 M US 473 M
Business Customer Total Traffic 206 1071_05F9_c1
DS 316 M US 158 M
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Traffic Analysis Backhaul Capacity Requirements Year 1
Year 2
Year 3
DS 6 M US 3 M
DS 8 M US 4 M
DS 10.6 M US 5.3 M
DS 13.9 M US 6.9 M
DS 18.1 M US 9 M
Hub 1 and 4
DS 9.6M US 4.8 M
DS 12.8 M US 6.4 M
DS 16.8 M US 8.3 M
DS 22 M US 11 M
DS 28.1M US 14.3 M
Hub 2 and 3
DS 7.2 M US 3.6 M
DS 9.6 M US 4.8 M
DS 12.6 M US 6.3 M
DS 16.6 M US 8.3 M
DS 21.7 M US 10.8 M
Total Traffic
DS 39.6 M DS 52.8 M US 19.8 M US 26.3 M
DS 69.3 M US 39.4 M
DS 90.8 M US 45.1 M
DS 118.9 M US 59 M
Head End
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Year 4
Year 5
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Traffic Analysis Establishing the Backbone Cache Engine ?
All Hubs Provisioned with POS- OC-3 SM Port Adapters
Hub
Hub PSTN
Internet
Hub
Customer Traffic from n Hubs Brought to Head-end for Processing 206 1071_05F9_c1
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Traffic Analysis Analysis Summary • Hardware selection based upon: Data rate commitments Upstream CNR Available upstream RF bandwidth Number of subscribers per CMTS Packet size Router throughput 206 1071_05F9_c1
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Numerous Variables Impact a HS Data Network Design; from Marketing to Cost, to Equipment Selection
“ 206 1071_05F9_c1
Planning Is Paramount when Establishing a Viable IP Network over CATV to Meet: Investor Expectation Consumer Expectation Market Dynamics © 1999, Cisco Systems, Inc.
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Agenda • Key Factors for Success • Market Dynamics • Standards • “New World Vision” • Cisco Cable Solution • Investors • Business Case Parameters • Plant Infrastructure • Hardware Selection • Traffic Analysis • Conclusion 206 1071_05F9_c1
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Conclusion
“The Proper Design of a Scalable IP Access Infrastructure Over Cable Television Plant Requires Considerable Planning to Achieve Success, Numerous Variables Must Be Considered
”
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Conclusion Defining the Solution Investors
Products
Business Case
Standards Market Dynamics
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Infrastructure 89
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Conclusion • Hardware limitations include: Receiver CNR limits Number of recommended subscribers per CMTS Router switching speed
• Business case limitations include: Downstream data rate commitments upstream data rate commitments
Planning Will Lead to Success! 206 1071_05F9_c1
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• Is your CATV plant being upgraded to HFC ? • Are upgrades compatible with current standards? • Are you familiar with DOCSIS standards and products? • Are you familiar with the IP “new world” vision? • Does your company have a business case supporting advanced services? 206 1071_05F9_c1
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Please Complete Your Evaluation Form Session 206
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