Download - DOCSIS 3.0 Overview

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1

DOCSIS 3.0 Overview

Suzanne Ewert

Systems Engineer


Agenda

Evolution of DOCSIS

Motivation - Why DOCSIS 3.0?

DOCSIS 3.0 Features Overview

Downstream Bonding Details

Upstream Bonding Details

DOCSIS 3.0 and M-CMTS Comparisons

Migration Strategy

Cisco VDOC

Cisco Architecture for D3.0 & M-CMTS

Summary


Evolution of DOCSIS


Evolution of DOCSIS Pre-DOCSIS

– MSO’s needed a service offering for the residential market

– Consumer demands dictated the need for something faster than dial-up

– Proprietary and expensive

DOCSIS 1.0

– MSO’s needed a standardized solution (i.e. cheaper)

– Consumer demands dictated the need for additional bandwidth

– Competing against DSL

DOCSIS 1.1

– MSO’s needed a way to protect their infrastructure and offer differentiated services

– MSO’s needed to expand, start targeting the commercial market

– Competing against DSL, ISDN, and T1

– Standard defined:

• security between the CMTS and CM (BPI+)

• extensive QOS functionality

• 38Mbps x 9Mbps service offering


Evolution of DOCSIS (cont) DOCSIS 2.0

– MSO’s needed a way to offer a synchronous service

• VoIP and business services

– Consumer demands dictated the need for more upstream bandwidth

• Gaming

• Consumer owned servers (Peer-to-Peer)

– Standard defined:

• Expanded upstream channel widths to include 6.4MHz

• Expanded upstream modulation schemes to include 32QAM, 64QAM, and 128QAM

• S-CDMA

• 38Mbps x 27Mbps service offering


Motivation - Why DOCSIS 3.0?


Business Drivers for D3.0

Competition against FTTH - Deliver 100 Mbps

Broadband Internet Services Growth

– Migration from Web to Web2.0, Video Streaming, P2P TV

– Increased per home consumption

IP Video over DOCSIS(VDOC)

– High definition Video to multiple devices

• PCs, Hybrid STBs, portable devices

– Migration from Broadcast to Unicast services (VoD, Startover)

Commercial services

– High BW data services

– High BW Ethernet/L2VPN service

– Video conferencing


Next Generation Connected Home

HOMEInternet

No New Wires TechnologyOutside

TheHome

PC

Multi-MediaService Gateway

Next GenMR-DVR

PhotosFrom PC

DVR contentOver the Internet

Stored musicIn any room

Internet video

On HDTV

Multi-MediaClient Gateway

Multi-MediaClient Gateway

PhotosFrom PC

Next GenMR-DVR

Stored musicIn any room

Internet video

On HDTV

DVR contentOver the Internet Network

Eth

ern

et

IP ServiceGateway


Spectral Reclamation Solutions

SDV – Switched Digital Video

Node splits

Narrowcast QAM injection

Analog reclamation

Use every channel available

1 GHz upgrade

MPEG-4


Goal:– Increase Scalability– Reduce Cost

Components:– Low Cost E-QAM– CMTS Core Processing

M-CMTS

Overall Industry Objectives

DOCSIS 3.0

Goal:– More aggregate speed– More per-CM speed– Enable New Services

Components:– Channel Bonding– IPv6– Multicast– AES

• Better stat muxing with bigger “pipe”• Offer >37 Mbps for single CM


DOCSIS 3.0 Features Overview


• MAC Layer– Downstream Channel Bonding – Upstream Channel Bonding

• Network Layer– IPv6 support– IP Multicast (IGMPv3/MLDv2,

SSM, QoS)

• Security– Certificate Revocation

Management– Runtime SW / Config validation– Enhanced Traffic Encryption

(AES)– Certificate Convergence – Early Authentication &

Encryption– TFTP Proxy

• Network Management– Diagnostic Log (Flaplist)– Extension of Internet Protocol

Data Records (IPDR) usage– Capacity management – Enhanced signal quality

monitoring

• Physical Layer– Switchable 5-42 MHz, 5-65 MHz,

or 5-85 MHz US band– S-CDMA active code selection

with new Logical channel

• Commercial Services– T1/E1 Circuit Emulation support

DOCSIS 3.0 Features


DOCSIS 3.0 Features – Physical LayerCMTS Deployment Models

Integrated CMTS

– Implements the network ports and RF interface ports in a single network element

Modular CMTS

– Implements the network ports and URFI ports in a modular core network element and the DRFI ports in a external EQAM

– A DEPI tunnel is used to encapsulates the downstream channels from the M-CMTS core to the EQAM

– A DTI server is used to synchronize the M-CMTS core and all associated EQAM’s


DOCSIS 3.0 Features – MAC Layer

Downstream Channel Bonding

– Allows a CM to receive data on multiple receive channels using a single service flow

– At least 4 channels must be used to equal 150+ Mbps

Upstream Channel Bonding

– Allows a CM to transmit data on multiple transmit channels using a single service flow

– At least 4 channels must be used to equal 100+ Mbps


DOCSIS 3.0 Features – Network Layer

IPv6 support

– Built in support for IPv6

– Modems can be provisioned using IPv4, IPv6, or both

– Provides transparent IPv6 connectivity to CPE’s

IP multicast support

– Supports delivery of source specific multicast (SSM) streams to CPE’s

– CMTS controlled layer-2 multicast forwarding mechanism

– Introduces “group service flow” concept to provide QOS to multicast streams


DOCSIS 3.0 Features – Security

CMTS to CM Privacy Features

– 128-bit AES traffic encryption (performed in hardware)

– Early CM authentication and traffic encryption (EAE)

– MMH (Multilinear Modular Hash) algorithm for CMTS MIC (message integrity check)

Prevent Unauthorized Access

– Enhanced secure provisioning features

– Source IP address verification (SAV)

– TFTP proxy and configuration file learning;

– Certificate Revocation

– Encryption support for new method of multicast messaging.


DOCSIS 3.0 Features – Network Management (cont)

Security Management

– IETF deprecated the previous NmAccess approach

– In order to address the new D3.0 features and the IETF’s decision:

• Extensions were built to report configuration status, error conditions and statistics of the new security features

• Replacement of NmAccess is required using a method compatible with the SNMPv3 framework

Accounting Management

– SNMPv3 polling/trapping

– IPDR (IP Detail Record) support is expanded to include the new D3.0 features


CableLabs DOCSIS 3.0 Qualification Tiers Bronze

– DS channel bonding

– IPv6 CM provisioning without dual stack, basic IPv6 forwarding for CPE

– Basic DOCSIS 2.0 multicast features, IPv6 multicast support for CM provisioning

– No US channel bonding, No S-CDMA, No AES

Silver

– Bronze features plus:

– US channel bonding

– Additional IPv6 support

– AES, SSM, Bonded multicast, S-CDMA w/o bonding, parts of IPDR

Gold

– Full DOCSIS 3.0 support


DOCSIS 3.0Downstream Channel Bonding Details


Downstream Bonding - Features

Packet bonding of a minimum of 4 channels– Delivers in excess of 150 Mbps and 50 Mbps US

Non-disruptive technology– Seamless migration from DOCSIS 1.x/2.0

– M-CMTS and high density I-CMTS cards

– EQAMs

New hardware required for scalability and cost reduction

New CM silicon required


Channel Bonding In a nutshell, channel bonding means data is

transmitted to or from CMs using multiple individual RF channels instead of just one channel

Channels aren't physically bonded into a gigantic digitally modulated signal; bonding is logical

With DOCSIS 1.x & 2.0, data is transmitted to modems using one channel

With DOCSIS 3.0, data is transmitted to modems using multiple channels


DOCSIS 3.0 Downstream Channel Bonding with Today’s DOCSIS 2.0 Deployments

CM CM CM CM

TraditionalDOCSIS

UniversalEdge QAM

Wideband MAC

Traditional Cable Modems

WCM

Wideband Downstream

D3.0 CM

Docsis 3.0 Bi-Dir CM


DOCSIS 3.0 Registration DiagramD3.0 CM acquires QAM/FEC lock of DOCSIS DS channelSYNC, UCD, MAP messages

D3.0 CM performs usual US channel selection, but does not start initial rangingMDD message

D3.0 CM performs bonded service group selection, and indicates via initial rangingB-INIT-RNG-REQ message

Usual DOCSIS initial ranging sequence

DHCP DISCOVER packet

REG-REQ message

DHCP RESPONSE packet

DHCP REQUEST packet

DHCP OFFER packet

D3.0 CM transitions to ranging station maintenance as usual

REG-ACK message

REG-RSP message

Usual BPI init. If configured

TOD Request/Response messages

TFTP Request/Response messagesD3.0 CM provides Rx-Chan(s)-Prof

D3.0 CM receives Rx-Chan(s)-Config

D3.0 CM confirms all Rx Channels


Reasons DRFI went Beyond D2.0 RFI Applies to CMTS, D3.0, or multi-carrier CMTS DS connector

Cleaned up ambiguity in 2.0 and lower– Noise dBmV changed to dBc

Allows more channels per connector– DOCSIS 2.0 and lower was only single carrier

M-CMTS architecture & D3.0 both reference DRFI– Less expensive E-QAMs, MxN mac domains

Performance goal was analog protection given analog ch lineup of 2-13 (54-216 MHz)– Digital chs justified to upper end of spectrum

– Criteria was 60 dB CNR for all combined sources

– Not necessary for digital communication nor sparser lineup


dBmV

N=1 : 60

Single Carrier DRFI

1

Center FrequencyMust 91 <-> 867 MHzMay 57 <-> 999 MHz

• Annex A & B

– Channel BW 8 & 6 MHz

• Variable depth interleaver

• HRC, IRC

• 64 & 256 QAM


dBmV

Power Output for Multiple Carriers per RF Spigot

1 21 21 3 21 3 4

N dBmV

1 60

2 56

3 54

4 52

8 49

16 45

32 42

60-ceil[3.6*log2(N)] dBmV

RF muting ≥73 dB below aggregate power

• Why is it done like this?

– Multiple chs create more pwr & distortions

– Attempt to keep constant wattage output

– DS laser concerns (Pwr/Hz)


DOCSIS 3.0 DS Considerations

Frequency Assignments

– CMTS may be limited to 860 MHz or 1 GHz

– CM’s may be limited to 50 or 60 MHz passband

Testing and maintaining multiple DS channels

– Physical channels have not changed for DOCSIS 3.0

– Test equip with built-in CM’s need to support bonding

DS isolation issues

DS channel bonding max power with 4 freqs stacked

– Four channels stacked on 1 connector limited to 52 dBmV/ch

• DOCSIS 1.x/2.0 DS is 61 dBmV max output


DOCSIS 3.0 – Upstream Channel Bonding Details


Upstream Bonding Service Drivers

Competition against FTTH– Deliver 20+ Mbps

High BW residential data

User generated content– Video and photo uploads– Proliferation of social sites

Video conferencing– TelePresence

Commercial service– High BW symmetrical data services– Bonded T1– High BW Ethernet/L2VPN service


Upstream Bonding - Features

Packet Striping of a minimum of 4 channels– Delivers in excess of 50 Mbps

AES and scalability require hardware upgrade

New CM silicon required

Phased and seamless technology migration


D2.0 is Still Not Used 27.2 Mbps total aggregate speed

Achieved 18 Mbps for single CM on US– Fragmentation and concatenation with a huge max burst

Linerate possible of ~ 27 Mbps

Make sure 1.0 CMs, which can’t fragment, have a max burst < 2000 B

2.0 increases the EQ tap length from 8 to 24– Supported in ATDMA & mixed mode

– Off by default

Symbol Rate, ksym/sec

Channel Bandwidt

h, MHz

QPSK Raw Data Rate,

Mbps

QPSK Nominal

Data Rate, Mbps

QAM-16 Raw Data Rate,

Mbps

QAM-16 Nominal

Data Rate, Mbps

QAM-64 Raw Data Rate,

Mbps

QAM-64 Nominal

Data Rate, Mbps

1280 1.6 2.56 2.3 5.12 4.6 7.68 6.9

2560 3.2 5.12 4.6 10.24 9.2 15.36 13.8

5120 6.4 10.24 9.2 20.48 18.4 30.72 27.5


Upstream Adaptive Equalization Example

Upstream 6.4 MHz bandwidth 64-QAM signal

After adaptive equalization:DOCSIS 2.0’s 24-tap adaptive equalization—actually pre-equalization in the modem—was able to compensate for nearly all of the in-channel tilt (with no change in digital channel power). The result: No correctable or uncorrectable FEC errors and the CMTS’s reported upstream MER (SNR) increased to ~36 dB.

Before adaptive equalization:Substantial in-channel tilt caused correctable FEC errors to increment at a rate of about 7000 errored codewords per second (232 bytes per codeword). The CMTS’s reported

upstream MER (SNR) was 23 dB.


DOCSIS 3.0 Upstream Channel Bonding Upstream Channel Bonding

– Bonding process is controlled by the CMTS

– Bandwidth grants are given per flow across one or more upstream channels as CM’s make requests

– New packet streaming protocol called Continuous Concatenation and Fragmentation.

• Allows a looser coupling between requests and grants

• Enables the CM to have multiple requests outstanding simultaneously

Bonding Mechanism

– Upstream channels are synchronized to a master clock source


DOCSIS 3.0 US Considerations Frequency Stacking Levels

– What is the CM max output with multiple channels stacked

– Could it cause laser clipping?

Diplex Filter Expansion to 85 MHz– If amplifier upgrades are planned for 1 GHz, then

pluggable diplex filters may be warranted to expand to 85 MHz on the US…one truck roll

– Still must address existing CPE equipment in the field and potential overload

Monitoring, Testing, & Troubleshooting– Test equipment needs to have D3.0 capabilities


DOCSIS 3.0 US Considerations (cont)US Frequency and Level Issues

Max Tx for D2.0 64-QAM for 1 channel is 54 dBmV

D3.0 US channel max power– Tx for D3.0 TDMA

• 17 - 57 dBmV (32 & 64-QAM)• 58 dBmV (8 & 16-QAM)• 61 dBmV (QPSK)

– Tx for D3.0 S-CDMA• 17 - 56 dBmV (all modulations)

Max Tx per channel for 4 freqs stacked at 64-QAM ATDMA is only 51 dBmV & 53 for S-CDMA


DOCSIS 3.0 US Considerations (cont)US MER/SNR Issues

Increasing channel width from 3.2 to 6.4 keeps same average power for single carrier– SNR drops by 3 dB or more

Keeping same power/Hz could cause max Tx level from CM’s and/or laser clipping/overload

Equalized vs unequalized MER readings

Modulation profile choices– QPSK for maintenance, 64-QAM for Data, 16-QAM for

VoIP? Pre-EQ affect

– Great feature in 1.1 & > CMs, but could mask issues


DOCSIS 3.0 US Considerations (cont)Channel Placement

Frequencies can be anywhere in US passband and do not need to be contiguous

It may be wise to keep relatively close so plant problems like attenuation and tilt don’t cause issues

CM should have some dynamic range to allow specific channels to be a few dB different vs. other channels

Channels are separate and can have different phy layer attributes such as modulation, channel width


ATDMA General Deployment Recommendations

After increasing CW to 6.4 MHz, measure & document unequalized US MER at multiple test points in the plant

– Use PathTrak Return Path Monitoring System linecard

– Or Sunrise Telecom Upstream Characterization toolkit

25 dB or higher Unequalized MER is recommended

– Less than 25 dB reduces operating margin

– Check US MER as well as per-CM MER

Pick freq < 30 MHz - away from diplex filter group delay

Make sure latest IOS version is running on CMTS

Turn on Pre-Equalization


DOCSIS 3.0 and M-CMTS Comparisons


DOCSIS 3.0 Migration: M-CMTS

HFC

Edge QAMs

Current CMTS

DS Bonding and Existing DOCSIS

1.x/2.0 CMs

DOCSIS 2.0 US


M-CMTS Network Topology

L1/L2/L3

CMTS

Legacy DS

Bonding Port

EQAM

CM 1Legacy CM

CM 3Legacy CM

CM 43-Ch Bonding

DS 4DS 3DS 2

DS 1

US 1

DTI Server

CM 23-Ch CM

doing 2-Ch Bonding

DTI Clock Card


M-CMTS

M-CMTS

M-CMTS Core

EQAM

UpstreamReceiver

DOCSIS Timing Server

Wide Area Network

Network Side

Interface (NSI)

Operations Support Systems Interface (OSSI)

Cable Modem to CPE

Interface (CMCI)

Downstream External-Phy

Interface (DEPI)

DOCSIS Timing

Interface (DTI)

Edge Resource Management

Interfaces (ERMI)

Downstream RF Interface

(DRFI)

Cable Modem

(CM)

Operations Support System

Edge Resource Manager

Customer Premises

Equipment (CPE)

Radio Frequency Interface

(RFI)

Hybrid Fiber-Coax Network (HFC)

• Key DOCSIS 3.0 enabling technology• DS scalability of DOCSIS 1.x/2.0• Easy migration to DOCSIS 3.0 DS channel bonding• Enables service convergence and QAM sharing (Video and Data)


DOCSIS 3.0: M-CMTS

HFC

Edge QAMs

CMTS Core

Supports DS Bonding and Existing DOCSIS 1.x/2.0 CMs

DOCSIS 3.0 Bonded US


DOCSIS 3.0: I-CMTS

HFC

I-CMTS

Supports DS Bonding and Existing DOCSIS 1.x/2.0 CMs

DOCSIS 3.0 Bonded US

DOCSIS 3.0 Bonded DS

High Density Linecards


Migration Strategy


Initial Migration Goal

Deliver very high speed data service– Deliver 100+ Mbps DS– Deliver 50+ Mbps US

Reduction of node split cost– Multiple DSs per node

• M-CMTS or I-CMTS load balancing– Multiple USs per node

• Leverage existing ports and deploy 2.0 USs

BW flexibility & reduction of CMTS port cost– Break DS/US dependence i.e. independent scalability of US and DS– Reduce cost of DS ports by more than 1/10 – Reduce CMTS port/subscriber cost by 30-50%


Migration Strategy

Target CMTS upgrades in high priority markets– FiOS & U-Verse competitive markets

– High growth & demographics

– Markets with capacity issues

– Your node

Add more DS QAMs per service group and load balancing– Via I-CMTS and M-CMTS

– Current 1x4 mac domain leaves US stranded

– Increase capacity to existing 1.x/2.0 modem


Migration Strategy (cont)

Deliver targeted bonded DS channels to DOCSIS 3.0 CMs

Video and data convergence– Video and DOCSIS service group alignment

– DSG & Tru2way will leverage DOCSIS DS BW

Share & leverage existing assets– UEQAMs for VoD, SDV and DOCSIS

– UERM to enable QAM sharing


Cisco VDOC


What is VDOC?

Solution for the delivery of managed IPTV services over a DOCSIS network

Broadcast TV and VoD services

TV, PC, and other devices in the home

Provide user experience subscribers expect from their cable operator


IPTV – Even better on cable

Fat Pipes – DOCSIS 3.0

VBR video

IP/IP signaling/bearer channel as opposed to IP/MPEG

One Network (voice, video, data) to deliver them all

Delivery to alternate CPE outlets – PCs, Wifi PDAs (iPhone)

“Off-net” possibilities


Channel Bonding creates efficiency gainsBig Channel “Packing Advantage”

HD

HD

SD

SD

SD SD

SDHD

HD

HD

HD

SD

SDSD

SD

SD HD

HD

HD

HD

SD

SD

SD

SDSD

SDSDSDSD

1 2 3 4 1 2 3 4

SD

4-channel bondinggroup

HD

HD

4 separate QAM channels

Channel capacity 10 SD +

5 HD streams

No more room for HD

10 SD + 5 HD streams

2 additional HD streams Unbonded channels create

inefficient boundaries

Bonding drives efficient “Packing”

Benefit varies

MPEG2/4 HD/SD mix

Bonding group size


Efficiency Gains from VBR Video

Support 40 – 60% more streams with VBR video

Law of large number works in favor of VBR statmux in fat pipe

0

20

40

60

80

100

120

140

0

20

40

60

80

100

120

140


DOCSIS 3.0 Channel Bonding Concepts A CM is unaware of the concept of bonding groups; it is only aware

of the set of downstreams it must tune to and the flows it must forward, as instructed by the CMTS

A CM can receive traffic from multiple BGs simultaneously

–Bonding groups may have different aggregate BW based on services supported, ie 1 BG = HSD and another BG = IPTV

Different CMs in a Service Group can receive traffic from different bonding groups, ie different BGs based on subscription levels

CM may tune to a subset of the downstreams configured for a SG

–Number of receive channels on CM does not need to equal number of RF channels allocated to DOCSIS service (HSD/VoIP/IPTV)


Bonding Group Selection

A CM can receive traffic from multiple BGs

Operator can steer flows to particular BGs by configuring Service Flow attributes for each BG

–CMTS uses SF-attributes when selecting BG for a flow

Operator could choose to set aside a BG for Cable IPTV and a separate BG for HSD/VoIP


CMCM

STB / PC

CMTS

IntegratedorModular

CMTS

IntegratedorModular

CMCM

STB / PC

CMCM

STB / PC

CMCM

STB / PC

CMCM

STB / PC

CMCM

STB / PC

VideoHeadend

Internet

IPTVSystem

VoIPSystem

IPTV

HSD/VoIP

HSD/VoIP

Service Group 1

Service Group n

DOCSIS 3.0 Channel BondingSeparate DS bonding groups for HSD/Voice and IPTV

IPTV


CMCM

PC

CMTS

IntegratedorModular

CMTS

IntegratedorModular

CMCM

PC

CMCM

STB / PC

CMCM

PC

CMCM

PC

CMCM

STB / PC

VideoHeadend

Internet

IPTVSystem

VoIPSystem

RFSpanning

RF SpanningInitial low-penetration IPTV deployments

HSD/VoIP

HSD/VoIP

Service Group 1

Service Group nIPTV


Cisco Architecture for D3.0 & M-CMTS


Cisco DOCSIS 3.0 DS Solution Deployed Worldwide Today

DOCSIS 3.0 Bronze functionality

Flexible M-CMTS Design

>2x DS capacity with incremental D3.0 module upgrade

– 40 to 184 DOCSIS DS ports

– 7Gbps CMTS Solution

DS channel bonding and narrowband currently supported on IOS 12.3(23)BC and 12.2(33)SCB

– Compatible with all versions of the 5x20 including S,U, and H

US channel bonding supported in the Bighorn IOS release (FCS November 2009)

– US channel bonding supported on the 5x20H, 3G60, 20x20

Supports >50,000 RGU’s per uBR10K


Cisco DOCSIS 3.0 DS Solution Narrowband enables legacy DOCSIS [1.x/2.0] modems to

use external QAMs for operation

Load Balancing and DCC techniques 1 – 4 are fully supported on SPA EQAM DS channels.

– determine CM is an eMTA & initiate DCC to HA DS

Uses M-CMTS compliant Edge-QAM (EQAM) devices

Uses M-CMTS compliant DTI timing source for DS channels

Full Layer 3 IP routing feature set

– Advanced QoS, VoIP, PCMM and MPLS VPN support for bonded services


Cisco uBR10012 DOCSIS 3.0 SolutionReference Architecture


DOCSIS 3.0 Option 1 Wiring Diagram


Cisco DOCSIS 3.0 M-CMTS


DOCSIS 3.0 Solution for the uBR7200VXR SeriesUBR-MC8x8U---Extending UBR7200 Series to DOCSIS3.0 Full DOCSIS 3.0 compliance

–DS bonding/US bonding

–Legacy DOCSIS 1.x and 2.0 modem support

–Multicast, IPv6 and other DOCSIS 3.0 specs

–S-CDMA and logical channels

–AES encryption

Same form-factor as current UBR-MC28U line card, upgrade is simple LC swap

Operates in 8 DS/8 US mode on UBR7225VXR and UBR7246VXR, 4x DS density of the existing MC28U line card

Requires UBR7200-NPE-G2


DOCSIS 3.0 evolution with the UBR10k

MC520H with D3.0 SPA

– 88 DS solution with DS bonding

MC520H with 6 D3.0 SPA, PRE4 and 10G

– 184 DS solution enables 5+ DS per FN

US Bonding on the MC520H

– Enables higher US rate service offerings

MC2020

– Full D3.0 capability and line rate US bonding

– Easy upgrade from 520H; interoperable with the D3.0 SPA

MC3G60

– Enables 8+ channel DS bonding at scale

– Scales US by 3x


US Channel Bonding on MC520H

DOCSIS 3.0 2, 3, and 4 channel US bonding supported

100 Mbps throughput on US bonded flows per line card

DOCSIS Line rate on D2.0/Non-bonded CM

BPI+ and PHS support for 3.0 and 2.0 flows

Dynamic BW sharing between 2.0 and 3.0 flows

Feature supports provisioning 3.0 CM in bonded or non-bonded configuration

Different US rates supported in Bonding Group

–For example: 16QAM/3.2Mhz + 64QAM/6.4Mhz


Cisco uBR10K MC2020 Linecard

• Full DOCSIS 3.0 support

DSCB

USCB

IPv6

MCast

AES

• Upgrade for MC520 LCs

Same RF Cabling

Very low operational impact

• Greater than 7x DS capacity in same 10K footprint

Grow from 40 DSs to 304 DSs with MC2020 and six D3.0 SPAs

>10Gbps CMTS solution

• Full HA support


MC2020 Features Full DOCSIS 3.0 compliance

–DS bonding/US bonding




–AES encryption

Line rate performance on US and DS on all channels (Annex A/B) MC2020 as Protect for MC520 and MC2020 Full Feature parity with MC520 PRE2/PRE4 support Interoperable with the DOCSIS 3.0 DS SPA SW licensing

– 0x20V, 5x20V, and 20x20v SKUs

– 5 DS, 15 DS, and 20 DS upgrade licenses will be made available


MC2020 with MC520H in the same UBR10K chassis

• MC2020 in 2 slots configured as “Working”

• 1 MC2020 configured as “Protect”

• MC520H occupy other RF slots (“Working”)

• MC2020 acts as Protect for BOTH MC520H/MC2020

• SPA slots can be occupied by 6 D3.0 DS SPA

Slots Filled

DS Spigots

DS Channels

MC520H 5 25 (5 * 5) 25

MC2020 2 10 (2 * 5) 40

D3.0 SPA6 (SPA Slots)

6 GigE 144

MC2020 as Protect

For 520H and 2020Total DS channels in this configuration

25 + 40 + 144 = 209


uBR10K

Cisco uBR10K MC3G60 LinecardM

C3G

60

MC

3G60

MC

3G60

MC

3G60

MC

3G60

MC

3G60

MC

3G60

RFGW-10

MC

3G60

US

DS

• Greater than 12x DS capacity in same uBR10K installed chassis

• 576 DS (504 DS with HA)

• ~20Gbps DOCSIS connectivity

• 10Gbps backhaul

• 3x US capacity

• 480 US (420 US in HA)

• Up to 12:1 freq stacking on US ports

• Scalable and efficient uBR10K and RFGW-10 matching

• Full HA on 10K and RFGW-10

GE


3G60 Highlights Full DOCSIS 3.0 compliance

–Line rate DS bonding/US bonding




–AES encryption

–DEPI M-CMTS

–15 Mac Domains per LC

72 DS channels and 60 US channels

N+1 LC redundancy

Flexible US and DS ratios (4/8/16/24 channel DS bonding)

SW licensing options


Bandwidth Growth / Capacity Transition Points10K Migration

Saratoga

Spumoni

20x20

3G60

0

5

10

15

20

25

30

2009 2010 2011 2012 2013 2014 2015

Gbp

s pe

r 35

K H

HP

HSD 3.0

HSD+VDOC1

HSD+VDOC2

• uBR10K scales well ahead of maximum bandwidth demand• 3G60 supports high-capacity V-DOC in 1 chassis through 2015


Summary


New Technology Cornerstones DOCSIS 3.0 - channel bonding for higher capacity

–Enable faster HSD service–MxN mac domains now–Enable video over IP solutions

M-CMTS–Lower cost downstream PHY–De-couple DS and US ports

I-CMTS–Allows higher capacity in same box–Same wiring


DOCSIS 3.0/M-CMTS Concluding Remarks

Promises ten times BW at fraction of cost

Introduce new HSD service of 50 to 75 Mbps

Backward compatible with existing DOCSIS standards

Allows migration of existing customers to higher tier and DOCSIS 3.0 capability

Allows more BW for legacy DOCSIS 2.0 CM

Allows for a phased deployment

IPV6, US bonding, and other features will follow

Download - DOCSIS 3.0 Overview

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