Next-Generation CMTS Solutions: Timing & Roadmaps Tom Cloonan, Ph.D. CTO - Broadband Division ARRIS International June 2006.

Next-Generation CMTS Solutions:

Timing & Roadmaps

Tom Cloonan, Ph.D.CTO - Broadband Division

ARRIS International

June 2006

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▪ The roadmaps described in this talk are still evolving & subject to change.

▪ All CMTS & CM vendors participating in the DOCSIS® 3.0 standardization process are bound by the CableLabs® NDA agreement & are not permitted to discuss details of the DOCSIS 3.0 and DOCSIS 2.0b features.

A Few Quick Notes

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Agenda

▪ Introduction▪ M-CMTS & DOCSIS 3.0 History▪ Predictions: The Near Future

(2006-2009)▪ Predictions: The Distant Future

(2010-2011)▪ Conclusions

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▪ MSOs are planning for many changes in the future

▪ Let’s consider a few quick examples…

Introduction

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2005 2006 2007 2008 20091

10

100

1000

30 kbps

Avg Bandwidth per subscriber (kbps)

100 kbps

1 Mbps

Example of Subscriber BandwidthChanges Proposed by one MSO

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Example of CMTS Bandwidth Changes Proposed by one MSO

Shift from MPEG-delivered Video to DOCSIS-delivered IPTV

DOCSIS MAC

GigabitEthernet Switching

VoDServer

Broadcast Analog Video (45 programs = 45 channels)Broadcast Digital SDTV (200 programs = 20 QAMs = 1 Gbps) & Broadcast Digital HDTV (40 programs = 20 QAMs = 1 Gbps)

Narrowcast VoD & IPTV

(13.6 Gbps / 340 QAM)

IPMetroNtwk

RF

RF

RF

RF

D5EdgeQAM

D5EdgeQAM

D5EdgeQAM

D5EdgeQAM

IP Router

HSD & Voice(1 Gbps / 32 QAM

& 128 Up Channels) RFUSRCV

C4 M-CMTS

20KHHPHub

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Example of DOCSIS Upstream:DownstreamRatio Changes Proposed by one MSO

2005 2006 2007 2008 20090

2

4

6

8

10

12

14

16

18

20

Total # Downstreams/SG

Total # Upstreams/SG

Total # Ports for 4-Fiber Node Service Group

Begin Channel Bonding

1

4

2

4

4

4

8

4

12

8

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Next-Generation Architectures Must Deliver Key Improvements to Permit MSOs to Evolve their HFC Networks

IPv4 – Address Management

• Complicated management due to limited available IP addresses

IPv6 – Address Management

• Simpler network operations and more IP devices per subscriber

Standard bandwidth

• Single channel limits the services that can be offered

Channel Bonded bandwidth

• Channel bonding increases usable bandwidth enabling new services

Fixed upstream / downstream ratio

• Capital invested in unused capacity as US/DS ratio changes

Flexible upstream / downstream ratio

• Align investment with revenue opportunity

Today

DOCSIS 2.0Next Generation Network Architecture

M-CMTS and DOCSIS 3.0

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Agenda




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MSOs will be able to select from multiple DOCSIS architectures in the near future

▪ Integrated CMTS (I-CMTS)− Architecture has all required CMTS modules in one chassis− CMTS has the ability to grow downstreams separately from upstreams− Permits support for full redundancy within a single chassis− Offers simpler management (MSO manages only one network element)

▪ Modular CMTS (M-CMTS) − Architecture separates the downstream PHY (EdgeQAM) from the MAC

and upstream PHY− CMTS has the ability to grow downstreams separately from upstreams− Allows network elements from multiple vendors if desired− Permits sharing of EdgeQAMs for VoIP, Video, & Data services

▪ Some CMTS vendors will offer products supporting both types of architectures

▪ MSOs will be able to select the architecture that best suits their needs

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Edge Resource Mgr

Router/Switch

I-CMTS

VoDServer

SwitchedDigitalBCASTVideoMgr

CM MTA STB

SG #1 Forward Path

SG #1 Reverse Path

CM MTA STB

SG #2 Forward Path

SG #2 Reverse Path

HFC Network Topology based onthe Integrated CMTS (I-CMTS) Architecture

D5 EQAM

D5 EQAM

D5 EQAM

D5 EQAM

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Edge Resource Mgr

D5 EQAM

D5 EQAM

D5 EQAM

D5 EQAM

D5 EQAM

Router/Switch

M-CMTS

VoDServer

SwitchedDigitalBCASTVideoMgr D5 EQAM

CM MTA STB

SG #1 Forward Path

SG #1 Reverse Path

CM MTA STB

SG #2 Forward Path

SG #2 Reverse Path

HFC Network Topology based onthe Modular CMTS (M-CMTS) Architecture

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MSOs will also be able to select from many features in the DOCSIS 3.0 spec

▪ Increased downstream & upstream bandwidth per subscriber via Channel Bonding

▪ Larger IP address spaces with IPv6

▪ Improved multicast support

▪ DOCSIS theft of service security

▪ More VPN support

▪ Simpler and higher-capacity management systems

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Channel Bonding: The Primary Driver for DOCSIS 3.0

▪ Competition from DSL & FTTH is pushing MSOs to offer more bandwidth & capacity▪ Business services & other planned service offerings (ex: fast video downloads, IPTV, etc.) are

requiring MSOs to offer more bandwidth & capacity to more subs

Channel Bonding

- Pre-Standard (ex: ARRIS FlexPath™)- DOCSIS 2.0b- DOCSIS 3.0

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“Packet-based” Channel Bonding Technology was adopted by the CableLabs DOCSIS 3.0 Standard

▪ ARRIS FlexPath used Packet-based Channel Bonding

▪ ARRIS FlexPath was the first available Pre-Standard Channel Bonding System

▪ SW upgrade to CMTS▪ New CM design▪ Permits 4 Downstreams

& 4 Upstreams to each CM (160 Mbps down & 120 Mbps up)

CM MAC Processor

CMTSMAC Processor

DOCSISMAC1

Flow Bonder

Flow Bonder

CCMNCCMN-1CCM2CCM1

DOCSISMACM

DOCSISMACM-1

DOCSISMAC2

To Network

To Home Network

DOCSIS Network

. . .

. . .

Standard DOCSIS Channel

C4 CMTS

CM

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ARRIS FlexPath Packet-basedChannel Bonding Demo & Trial History

2004 2005 2006 2007

2Q04 3Q04 4Q04 1Q05 2Q05 3Q05 4Q05 1Q06 2Q06 3Q06 4Q06 1Q07 2Q07

World’s 1st Channel Bonding Demo (ARRIS FlexPath at NCTA)

Lab & Field Trials of ARRIS FlexPath(ex: NTL in England)

World’s 2nd Channel Bonding Demo (ARRIS FlexPath at SCTE)

GeneralAvailability(August 2006)

This road map is subject to change.

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Agenda




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Fixed U:D Ratio

Integrated CMTS

(I-CMTS)

Modular CMTS

(M-CMTS)

Flexible U:D Ratio

Next-Gen CMTS Evolutionary Paths

DOCSIS 2.0

DOCSIS 3.0

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Fixed U:D Ratio

Integrated CMTS

(I-CMTS)

Modular CMTS

(M-CMTS)

Flexible U:D Ratio


DOCSIS 2.0

DOCSIS 3.0

“DOCSIS 2.0b” is defininga subset of DOCSIS 3.0

features for anAccelerated Test Program

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Fixed RatioIntegrated2.0 CMTS

Fixed RatioIntegrated2.0 CMTS

Fixed U:D Ratio

Flexible U:D Ratio

DOCSIS 2.0

DOCSIS 3.0/2.0b

Flexible Ratio 3.0/2.0bM-CMTS

Flexible Ratio Integrated 3.0/2.0b

I-CMTS


Integrated CMTS

(I-CMTS)

Modular CMTS

(M-CMTS)

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Before we answer,let’s do a quick review of past DOCSIS Spec

Releases & 1st Successful Cert Waves

1997 1998 2001 2002 20031999 2000 2004 2005 2006

DOCSIS 1.0Spec Issued

1st Qualified1.0 CMTS


1st Qualified1.1 CMTS (ARRIS)


2nd Qualified2.0 CMTS (ARRIS)

1st Qualified2.0 CMTS (Terayon wrote most of spec)

2007


???

M-CMTSSpecs Issued

???

When will these new CMTS Architectures be Deployable?

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Industry Predictions: The Near Future

2006 2007

1Q06 2Q06 3Q06 4Q06 1Q07 2Q07 3Q07 4Q07 1Q08 2Q08

2008

Interops (2.0/2.0b)

Deployments

Interops Lab/FieldTrials

Deployments

InteropsLab/Field

Trials

Lab/FieldTrials

(since 1Q05)

This does not reflect ARRIS product plans- It is a representation of general industry milestones by all Vendors.

Pre-Standard(e.g. FlexPath)

M-CMTS

DOCSIS 2.0b

DOCSIS 3.0

Lab/Field Trials

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Industry Predictions: The Near Future

2008 2009

1Q08 2Q08 3Q08 4Q08 1Q09 2Q09 3Q09 4Q09 1Q10 2Q10

2010

Deployments

Deployments

This does not reflect ARRIS product plans- It is a representation of general industry milestones by all Vendors.

Pre-Standard(e.g. FlexPath)

M-CMTS

DOCSIS 2.0b

DOCSIS 3.0

Lab/FieldTrials

Lab/FieldTrials

Deployments

Deployments

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Agenda




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Distant Future Predictions: The Subscriber Base

▪ Typical 100K HHP Headends will require their CMTSs to support > 100K CM devices due to the inclusion of CMs, MTAs, and many DOCSIS-enabled STBs per household

▪ Subscriber PCs & Network Servers will need to be re-configured with larger buffers & GigE feeds to match the new high-speed Internet bandwidths offered by Channel Bonding

▪ MSOs will find that offering high availability & QoS in both I-CMTS & M-CMTS deployments will permit them to differentiate their converged services in a very competitive market

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Distant Future Predictions: The Applications

▪ MSOs will begin to offer more local caching of content (video and data) to minimize Round Trip Times (RTTs) and increase TCP download speeds

▪ IPTV with large content libraries from local caches will begin to be heavily offered by MSOs over Channel Bonding systems

▪ MSOs will begin finding new applications that make extensive use of Channel Bonding…

− ex: MSO-managed WiMax/WiBro networks & Business Services may consume very high backhaul bandwidths w/ up to 500 Mbps feeds (~12 bonded downstream channels)

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Agenda




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Do MSOs need a Next Gen CMTS?

▪ Flexible bandwidth allocation needed to reduce CAPEX/sub− Discrete deployment of Upstream and Downstream capacity allows new

cost-effective services like IPTV

▪ Competition from DSL and FTTX is driving Channel Bonding

▪ IPv6 is needed to resolve IP address exhaust for large MSO or interconnected IP networks

▪ Triple play is moving to converged IPTV, VoIP, and HSD− This requires more bandwidth, security, and IP addresses to facilitate

this shift to everything IP, everywhere

Answer: Yes… In the form of DOCSIS® 3.0 and Modular-Answer: Yes… In the form of DOCSIS® 3.0 and Modular-CMTS (M-CMTS) and I-CMTSCMTS (M-CMTS) and I-CMTS

Answer: Yes… In the form of DOCSIS® 3.0 and Modular-Answer: Yes… In the form of DOCSIS® 3.0 and Modular-CMTS (M-CMTS) and I-CMTSCMTS (M-CMTS) and I-CMTS

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Conclusions

▪ DOCSIS 3.0, I-CMTS, and M-CMTS will all be available in the near future

▪ Successful deployment will require:− Detailed traffic engineering work to design Channel Bonded

networks− Careful Interops and Lab/Field Trials to ensure product

interoperability− Powerful diagnostic tools to assist in trouble-shooting− CMTS vendors with Channel Bonding deployment experience

▪ With DOCSIS 3.0 & I-CMTS & M-CMTS, the cable industry is creating a long-term infrastructure that will dominate the edge for years to come

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Thank You!

Contact Information:

[email protected]

Next-Generation CMTS Solutions: Timing & Roadmaps Tom Cloonan, Ph.D. CTO - Broadband Division ARRIS International June 2006.

Documents

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data servicessome cmts