Transcript Slide 1

DOCSIS 3.0 Overview
Suzanne Ewert
Systems Engineer
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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
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Evolution of DOCSIS
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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
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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
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Motivation - Why
DOCSIS 3.0?
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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
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Next Generation Connected Home
HOME
Internet
Stored music
In any room
Internet
video
On HDTV
Next Gen
MR-DVR
Photos
From PC
Multi-Media
Client Gateway
Next Gen
MR-DVR
Multi-Media
Client Gateway
No New Wires Technology
DVR content
Over the Internet
Network
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Multi-Media
Service
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Ethernet
IP Service
Gateway
Internet
video
On HDTV
Outside
The
Home
Photos
From PC
PC
Cisco Confidential
Stored music
In any room
DVR content
Over the Internet
8
Spectral Reclamation Solutions
 SDV – Switched Digital Video
 Node splits
 Narrowcast QAM injection
 Analog reclamation
 Use every channel available
 1 GHz upgrade
 MPEG-4
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Overall Industry Objectives
DOCSIS 3.0
 Goal:
– More aggregate speed
– More per-CM speed
– Enable New Services
 Components:
–
–
–
–
Channel Bonding
IPv6
Multicast
AES
M-CMTS
 Goal:
– Increase Scalability
– Reduce Cost
 Components:
– Low Cost E-QAM
– CMTS Core Processing
• Better stat muxing with bigger “pipe”
• Offer >37 Mbps for single CM
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DOCSIS 3.0 Features
Overview
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DOCSIS 3.0 Features
• MAC Layer
• Network Management
– 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
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– 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
12
DOCSIS 3.0 Features – Physical Layer
CMTS 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
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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
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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
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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.
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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
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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
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DOCSIS 3.0
Downstream Channel
Bonding Details
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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
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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
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With DOCSIS 3.0, data is transmitted to
modems using multiple channels
21
DOCSIS 3.0 Downstream Channel Bonding
with Today’s DOCSIS 2.0 Deployments
Universal
Edge QAM
Traditional
Cable
Modems
Docsis 3.0
Bi-Dir CM
Wideband
Downstream
Wideband
MAC
Traditional
DOCSIS
CM
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CM
CM
CM
WCM
D3.0 CM
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DOCSIS 3.0 Registration Diagram
SYNC, UCD, MAP messages
D3.0 CM acquires QAM/FEC
lock of DOCSIS DS channel
MDD message
D3.0 CM performs usual US
channel selection, but does
not start initial ranging
B-INIT-RNG-REQ message
D3.0 CM performs bonded
service group selection, and
indicates via initial ranging
Usual DOCSIS initial ranging sequence
DHCP DISCOVER packet
DHCP OFFER packet
DHCP REQUEST packet
D3.0 CM transitions to
ranging station maintenance
as usual
DHCP RESPONSE packet
TOD Request/Response messages
TFTP Request/Response messages
REG-REQ message
D3.0 CM provides Rx-Chan(s)-Prof
REG-RSP message
D3.0 CM receives Rx-Chan(s)-Config
REG-ACK message
D3.0 CM confirms all Rx Channels
Usual BPI init. If configured
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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
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Single Carrier DRFI
• Annex A & B
– Channel BW 8 & 6 MHz
• Variable depth interleaver
dBmV
• HRC, IRC
N=1 : 60
• 64 & 256 QAM
1
Center Frequency
Must 91 <-> 867 MHz
May 57 <-> 999 MHz
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Power Output for Multiple Carriers per RF Spigot
dBmV
60-ceil[3.6*log2(N)] dBmV
1
1 2
1 2 3
1 2 3 4
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)
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N
dBmV
1
60
2
56
3
54
4
52
8
49
16
45
32
42
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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
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DOCSIS 3.0 –
Upstream Channel
Bonding Details
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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
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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
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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
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Upstream Adaptive Equalization Example
Upstream 6.4 MHz bandwidth 64-QAM signal
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.
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.
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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
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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
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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
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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
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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
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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
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DOCSIS 3.0 and
M-CMTS Comparisons
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DOCSIS 3.0 Migration: M-CMTS
Current CMTS
DOCSIS 2.0 US
HFC
DS Bonding and
Existing DOCSIS
1.x/2.0 CMs
Edge QAMs
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M-CMTS Network Topology
DTI Clock
Card
Bonding
Port
DTI Server
L1/L2/L3
DS 4
DS 3
DS 2
EQAM
CMTS
DS 1
Legacy
DS
US 1
CM 1
Legacy CM
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CM 2
3-Ch CM
doing
2-Ch Bonding
CM 3
Legacy CM
CM 4
3-Ch Bonding
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M-CMTS
M-CMTS
Network
Side
Interface
(NSI)
Wide Area
Network
DOCSIS
Timing
Interface (DTI)
M-CMTS
Core
Operations
Support
System
DOCSIS
Timing Server
Operations
Support Systems
Interface (OSSI)
Downstream
External-Phy
Interface
(DEPI)
Cable Modem
to CPE
Interface
(CMCI)
Downstream
RF Interface
(DRFI)
EQAM
Hybrid Fiber-Coax
Network (HFC)
Cable
Modem
(CM)
Customer
Premises
Equipment
(CPE)
Upstream
Receiver
Edge Resource
Management
Interfaces
(ERMI)
•
•
•
•
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Radio Frequency
Interface
(RFI)
Edge
Resource
Manager
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)
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DOCSIS 3.0: M-CMTS
CMTS Core
DOCSIS 3.0 Bonded US
HFC
Supports DS
Bonding and Existing
DOCSIS 1.x/2.0 CMs
Edge QAMs
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DOCSIS 3.0: I-CMTS
High Density Linecards
I-CMTS
DOCSIS 3.0 Bonded US
HFC
DOCSIS 3.0 Bonded DS
Supports DS
Bonding and Existing
DOCSIS 1.x/2.0 CMs
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Migration Strategy
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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%
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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
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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
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Cisco VDOC
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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
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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
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Channel Bonding creates efficiency gains
Big Channel “Packing Advantage”
No more
room for
HD
HD2 additional
HDHD streams
SD
HD
SD
SD
SD
SD
SD
HD
Channel
capacity
HD
10
SD + HD
5 HD HD
SDstreams SD
HD
SD
SD
SD
SD
SD
SD
SD
3
4
1
2
 Benefit varies
 MPEG2/4 HD/SD mix
SD
4 separate
QAM
channels
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10 SD +
5 HD
HD
streams
HD
SD
SD
SD
1
 Bonding drives efficient
“Packing”
HD
SD
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 Unbonded channels create
inefficient boundaries
HD
 Bonding group size
2
3
4
4-channel
bonding
group
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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
140
140
120
120
100
100
80
80
60
60
40
40
20
20
0
0
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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)
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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
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67
DOCSIS 3.0 Channel Bonding
Separate DS bonding groups for HSD/Voice and IPTV
HSD/VoIP
Service Group 1
Video
Headend
IPTV
IPTV
System
CMTS
Internet
Integrated
or
Modular
IPTV
CM
CM
CM
STB / PC
STB / PC
STB / PC
Service Group n
VoIP
System
HSD/VoIP
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CM
CM
CM
STB / PC
STB / PC
STB / PC
68
RF Spanning
Initial low-penetration IPTV deployments
HSD/VoIP
Service Group 1
Video
Headend
RF
Spanning
IPTV
System
CMTS
Internet
Integrated
or
Modular
CM
CM
CM
PC
PC
STB / PC
IPTV
Service Group n
VoIP
System
HSD/VoIP
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CM
CM
CM
PC
PC
STB / PC
69
Cisco Architecture
for D3.0 & M-CMTS
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70
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
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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
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Cisco uBR10012 DOCSIS 3.0 Solution
Reference Architecture
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DOCSIS 3.0 Option 1 Wiring Diagram
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Cisco DOCSIS 3.0
M-CMTS
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DOCSIS 3.0 Solution for the uBR7200VXR
Series
UBR-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
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77
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
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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
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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
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MC2020 Features
 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






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
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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 SPA
6 (SPA
Slots)
6 GigE
144
MC2020 as Protect
Total DS channels in this configuration
25 + 40 + 144 = 209
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For 520H and 2020
82
Cisco uBR10K MC3G60 Linecard
uBR10K
• Greater than 12x DS capacity in
same uBR10K installed chassis
MC3G60
MC3G60
MC3G60
MC3G60
MC3G60
MC3G60
MC3G60
MC3G60
• 576 DS (504 DS with HA)
US
• ~20Gbps DOCSIS
connectivity
• 10Gbps backhaul
• 3x US capacity
• 480 US (420 US in HA)
• Up to 12:1 freq stacking on
US ports
GE
DS
• Full HA on 10K and RFGW-10
RFGW-10
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• Scalable and efficient uBR10K
and RFGW-10 matching
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3G60 Highlights
 Full DOCSIS 3.0 compliance
–Line rate 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
–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
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Bandwidth Growth / Capacity Transition Points
10K Migration
Gbps per 35K HHP
30
25
20
3G60
15
20x20
HSD 3.0
HSD+VDOC1
HSD+VDOC2
10
Spumoni
5
Saratoga
0
2009 2010 2011 2012 2013 2014 2015
• uBR10K scales well ahead of maximum bandwidth demand
• 3G60 supports high-capacity V-DOC in 1 chassis through 2015
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Summary
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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
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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
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