Bandwidth Playbook
Thwarting Fiber-to-the-Home Competition
John J. Downey
Broadband Network Engineer
Cisco Systems
jdowney@cisco.com
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
1
Agenda
• Speeds and Feeds
– Competitive Outlook (FiOS)
– Objectives
– Current & New Speed Offerings
• Future Evolution Options
• Cablevision’s Choice
– Configs
– Cabling Ideas
– Other Ideas
• New Technology Cornerstones
DOCSIS Security
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2
Speeds and Feeds
DOCSIS Security
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3
Objectives
• Use existing HFC network
• Separation of tiers of service
• Bandwidth usage monitoring/shaping
• Security Issues - mitigate “hackers”
• Number of subs per port
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4
Current and New Speed Offerings
• Typically 1 tier at 3M DS by 384K US
• MSOs using 1.1 to migrate to multiple tiers of service
– Dial-up replacement 128K x 128K
– Low to Med speed
1M x 256K or 3M x 384K
– High speed
5-7M x 512-768K
• Offerings from Verizon
– 10x2 Mbps, 20x5, & 30x5 FTTH
• New residential & commercial offerings
– 15x2 - Cox
– 10x1, 15x2, 30x5 - CV
– 16x2 - Comcast
– 20x? - RCN
DOCSIS Security
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5
Usage Patterns
• Changing “cap” at same price may not have linear affect
–
Average usage may be less than extrapolated
–
Customers that use a lot of P2P services may look
more appealing to others outside network
–
Offering 15 Mbps at 100:1 oversell allows 200 subs/DS
& may be fine, but needs to be observed over time
• Customers paying for higher “cap” could feel compelled to
get their moneys worth and use much more than previous
• Usage could increase exponentially
–
Customers become more computer savvy
–
Other applications become prolific or just temporary
• Equates to an over-subscription calculation that must be reevaluated and probably decreased
DOCSIS Security
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DS Speed Affected by:
• Usable rate and frame size
• Modem
– Config file, CPU (PPS), & Ethernet
• Transport layer
– TCP or UDP
– US speeds & windowing affect TCP
• Max DS burst - perception is reality
– VoIP jitter?
• Computer OS and Windows stack
DOCSIS Security
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7
US Speed Affected by:
• Rate limit & other traffic
DOCSIS Protocol
• Map advance, DS interleaving & Modulation
• Concatenation
• Max concat & traffic burst settings
• Modulation profiles
• Fragmentation
• DOCSIS 1.0 CM?
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Future Evolution Options
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Solutions
1. Do nothing and watch the competition
erode your subscriber base
2. Segment the fiber nodes
3. FTTC, FTTH(P), FTTWAP
4. “Bonding” US & DS DOCSIS channels
DOCSIS Security
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Option 1 - Same CMTS with
Frequency Separation
DOCSIS Security
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Option 1 - Same CMTS with Freq Separation
• Map 2 DS freqs & 2 US Rxs into same node
– Freq A serving Res subs & freq B serving new subs
• Utilize 256-QAM on both DSs
– 36 Mbps per DS freq (depends on frame size)
• Utilize 3.2 MHz CW/16-QAM on both USs
– 9 Mbps per US freq (depends on frame size)
• US and/or DS load balance
– Allow res subs to use under-utilized commercial US
• Client-class processing "steers" Res subs to A & new
subs to B
– Set DS freq and/or US Ch ID in CM’s config file
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Separating CMs Through Client-Class Processing
Client Entries
PC X
MAC Address:
01:02:03:04:05:06
Cable Modem Y
MAC Address:
02:03:04:06:aa:06
Cable Modem X
ab:cd:ef:01:02:03
Modem Tag
Scopes
Scope
10.1.1.0
.2-.124
01:02:03:04:05:06
02:03:04:06:aa:06
CMTS
Res Modem Class
Modem Tag
...
..
..
.
MAC Address:
ab:cd:ef:01:02:03
Client Classes Scope
Tags
PC Class
PC Tag
scope
24.1.1.0
.125-.255
PC tag
Client Classes Scope
Tags
INET Modem Class
Modem Tag
Modem Tag
Scopes
Scope
10.2.2.0
.2-.124
Provisioning Server
DOCSIS Security
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Option 1 - Separating CMs via FDM & Provisioning
DS0
U0
DS0 = 453 MHz @ 256-QAM
DS1 = 459 MHz @ 256-QAM
U1
U2
U3
DS1
U0 = 20.0 MHz @ 3.2 MHz
U0 = 23.2 MHz @ 3.2 MHz
U0
U1
U2
U3
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Option 1 - Questions to Answer
• Multiple DSs broadcast because of EDFAs?
– Broadcast makes it difficult to achieve 1:1 DSto-node combining later down the road
• Nodes with 1 DS Rx & 2 US Txs?
–
–
–
–
DOCSIS Security
Two DSs could be sent to node
1 US laser feeds US of 1 mac domain
2nd laser feeds US from other mac domain
US frequency re-use possible
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15
Option 1 – Pros and Cons
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Option 1 - Pros
• Provides simple "get up and run" approach
• Only real modifications are:
– Combining to map 2-4 USs to nodes
– Ensure provisioning system steers them to proper
US ch
• US and DS load balancing possible
– “Poor man’s” redundancy
– Caution across cards - packet drops because no IM
alignment between cards
• If using mixed mode, then 2.0 CMs could burst at 64QAM for ~ 13 Mbps
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Option 1 - Pros (cont)
• 2 DSs at 256-QAM = ~ 72 Mbps
• 2 USs at 16-QAM / 3.2 MHz = ~ 18 Mbps
• Advanced phy features
– Ingress cancellation and more FEC
– 24-tap EQ & US interleave
– A/D conversion
• 5x20U has advanced spectrum management, remote
analyzing and per-CM FEC counters
– Available with 12.3(13) IOS & >
DOCSIS Security
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Option 1 - Cons
• Requires combining work
• Requires DS and US spectrum availability
• Moving to new DS requires new US
• Outage could make CMs register on
incorrect DS & affect registration times
• CMs will need to be client-class processed
with info in their DOCSIS config files
• What if an US port dies?
DOCSIS Security
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Option 2 - Separate CMTSs
DOCSIS Security
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Option 2 - Diagram
CMTS A
CMTS B
DS0
DS1
U0
U0
U1
U1
U2
U2
U3
U3
• Map US/DS ports from 2nd CMTS into existing nodes
• Connect 2nd CMTS to core network
• Provision Commercial CMs to proper freq & CMTS
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Option 2 - Pros
• Hardware Isolation
• More processing power
• Future expansion and “poor-man’s” HA
• Separates “high speed” customers for
NOC “clarity”
• Some systems use this for open access or
to segregate Data form VoIP
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Option 2 - Cons
• Second CMTS
• Will CPU max out if one chassis dies?
• More power draw & rack space in HE/hub
• Must integrate 2nd chassis to network
• Need address space for additional CMTS
• CMs could lock on wrong CMTS & IP bundle
– IP address depletion
– Packet drops (no IM alignment between chassis)
– CM offline on one CMTS & online on another
DOCSIS Security
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23
Option 3 - Same as Option 1, but
Utilizing ATDMA
DOCSIS Security
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Option 3 - Same CMTS Utilizing ATDMA
• Utilize ATDMA-only US ports for Commercial CMs
• Only allows 2.0 CMs to "see" US port & register
• Existing Res subs are blind to ATDMA port
– Don't understand mac message 29 included in UCD
• Need to configure provisioning to block
Commercial CMs from registering on 1.x US port
– Use provisioning to force specific DS freq or US Ch ID
DOCSIS Security
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Option 3 - Diagram
DS0
U0
U1
U2
U3
DS1
U0
• DS0/U0 = TDMA (1.x mode)
U1
• DS1/U0 = ATDMA (2.0-only)
U2
• Only allows 2.0 CMs to "see" DS1/U0
& register on it
U3
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DOCSIS 2.0 Benefits
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DOCSIS 2.0 – ATDMA Basics
• Introduces “docsis-mode” concept:
– TDMA (traditional 1.x mode)
– ATDMA-TDMA (mixed 1.x and 2.0)
– ATDMA (2.0-only)
• Use “cable upstream x docsis-mode {}” to
configure US channel to a desired mode
– Automatically picks a new default mod profile
DOCSIS Security
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DOCSIS 2.0 Benefits
• Greater spectral efficiency
– Better use of existing channels
– More capacity
• Provides higher throughput in US direction
– Per-CM speed greater with better PPS
• Robust against worst-case plant impairments
– Although not part of spec, ingress cancellation
allows higher orders of modulation
– Opens unused portions of spectrum
– Insurance for life-line services
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29
DOCSIS 2.0 Benefits
• IUCs added for 1.x/2.0 mixed environment
– 9 = a-short, 10 = a-long, 11 = a-ugs
• Better statistical multiplexing
– 6.4 MHz channel is better than 2, 3.2 channels
• Increases US capacity to 30.72 Mbps
• Enhances flexibility when used in
combination with Virtual Interfaces
– 1x1 MAC domain makes more sense
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30
DOCSIS 1.1 Phy Change (PRE-EQ)
• US equalization is supported on all cards for 1.0 and 1.1
– 8-tap blind equalizer
• 1.1 allows 'pre-equalization' where EQ coefficients are
sent allowing a CM to pre-distort its signal
– Cab up x equalization-coefficient
• Supported on all linecards and releases that support 1.1
– Requires 1.1 capable CMs, but not .cm file
– Configurable option
• 2.0 increases the equalizer tap length from 8 to 24
– Supported on U cards in ATDMA mode
– Off by default
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31
Amplitude Ripple/Tilt
• 6.4 MHz ATDMA
signal exhibits
severe in-band
tilt at US port
• Pre-EQ in CM
can compensate
for nearly all tilt
DOCSIS Security
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32
Option 3 – Pros and Cons
DOCSIS Security
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Option 3 - Pros
• Allows 2 stacked US channels
– Only appears as one for Res customers
• Allows less ports to be used since ATDMA
USs operate at 27 Mbps usable speed
– If spectrum is available, 2.0 CMs could use a
6.4 MHz channel & 64-QAM, if clean enough
• Leverages 1 CMTS that’s already installed
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Option 3 - Cons
• Requires new “high speed” users to have 2.0 CMs
• Requires provisioning work to "block" 2.0 CMs from
registering on Res freq
• If Res subs buy their own 2.0 CMs, they could lock to
commercial US w/o provisioning interdiction
– Use TLV 39=0 for res CMs
– Forces 1.x mode even if they are 2.0 capable
• Can’t utilize load balancing
– Configure mixed-mode with utilization-based LB
• May require dynamic freq hopping or mod changes
DOCSIS Security
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Cablevision’s Choice
DOCSIS Security
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New Architecture Idea Using Option 3
DOCSIS Security
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New Architecture Information
• DS0-DS3 are 1x2 MAC domains – Regular Tier
• DS4 is 1x8 MAC domain – Power Tier
• USs use connector assignments & freq stacked
• Boost Configuration:
– US: Up to 27 Mbps per node
– DS: ~25 Mbps @ 64-QAM or ~35 Mbps @ 256-QAM
per 8 nodes
• Could be further segmented down to 4 nodes
• 4 US ports not used
DOCSIS Security
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38
Questions to Answer
• Back-office procedures & implementation,
what happens when:
–
–
–
–
New CM registers on wrong DS
Catastrophic failure on entire node
Residential sub buys their own 2.0 CM
CMs move between DSs and/or US ports
• Physical implementation
– Is DS spectrum available for 256-QAM
– Can US laser handle multiple carriers and
higher modulation schemes
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39
CMTS Configuration
DOCSIS Security
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40
Lab Testing Procedures and Verification
• uBR10k with PRE1 running 12.3(9a)BC4
• Verified the following features:
– Dual DS and US frequency to same node
– Virtual Interfaces
– ATDMA-only US
– Frequency Stacking
– 1x2 and 1x8 MAC domain
– CM config file with specific DS freq configured
• Used Cablevision’s CMTS config as much as possible
• Broadband Access Center for Cable (BACC) used for
provisioning, DHCP, ToD and TFTP
DOCSIS Security
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41
CMTS Linecard Configuration
interface Cable8/1/0
cable downstream modulation 256qam
cable downstream frequency 603000000
cable downstream channel-id 0
cable downstream rf-power 58
cable upstream max-ports 2
cable upstream 0 connector 0 shared
cable upstream 0 frequency 25008000
cable upstream 0 channel-width 3200000
cable upstream 0 minislot-size 2
cable upstream 0 modulation-profile 23
no cable upstream 0 shutdown
cable upstream 1 connector 2 shared
cable upstream 1 frequency 25008000
cable upstream 1 channel-width 3200000
cable upstream 1 minislot-size 2
cable upstream 1 modulation-profile 23
no cable upstream 1 shutdown
DOCSIS Security
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interface Cable8/1/4
cable downstream modulation 256qam
cable downstream frequency 609000000
cable downstream channel-id 4
cable downstream rf-power 58
cable upstream max-ports 8
cable upstream 0 connector 0 shared
cable upstream 0 frequency 28496000
cable upstream 0 channel-width 3200000
cable upstream 0 minislot-size 2
cable upstream 0 modulation-profile 23
no cable upstream 0 shutdown
cable upstream 1 connector 2 shared
cable upstream 1 frequency 28496000
cable upstream 1 docsis-mode atdma
cable upstream 1 channel-width 3200000
cable upstream 1 minislot-size 2
cable upstream 1 modulation-profile 221
no cable upstream 1 shutdown
42
Configuration (cont)
interface Cable8/1/1
cable downstream modulation 256qam
cable downstream frequency 603000000
cable downstream channel-id 1
cable downstream rf-power 58
cable upstream max-ports 2
cable upstream 0 connector 4 shared
cable upstream 0 frequency 25008000
cable upstream 0 channel-width 3200000
cable upstream 0 minislot-size 2
cable upstream 0 modulation-profile 23
no cable upstream 0 shutdown
cable upstream 1 connector 6 shared
cable upstream 1 frequency 25008000
cable upstream 1 channel-width 3200000
cable upstream 1 minislot-size 2
cable upstream 1 modulation-profile 23
no cable upstream 1 shutdown
DOCSIS Security
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interface Cable8/1/4
cable downstream modulation 256qam
cable downstream frequency 609000000
cable downstream channel-id 4
cable downstream rf-power 58
cable upstream max-ports 8
cable upstream 2 connector 4 shared
cable upstream 2 frequency 28496000
cable upstream 2 channel-width 3200000
cable upstream 2 minislot-size 2
cable upstream 2 modulation-profile 23
no cable upstream 2 shutdown
cable upstream 3 connector 6 shared
cable upstream 3 frequency 28496000
cable upstream 3 channel-width 3200000
cable upstream 3 minislot-size 2
cable upstream 3 modulation-profile 23
no cable upstream 3 shutdown
43
Concerns
• IP Address Implications
– How to prevent IP address exhaust during
ranging onto incorrect DS freq
• CM issues with multiple DS & US freqs?
– Long time to register (CMs cache DS freq)
• Power level when 2nd US freq added?
– CMTS performs pwr on per-US freq & CW
– Analog front-end could overload & cause
harmonics
• Per-CM speeds
DOCSIS Security
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44
Concerns (cont)
• Maybe laser clipping from adding additional
freqs and higher modulation schemes
• How to scale 1x8 and 1x2 MAC domains as
utilization increases?
– Take into account RF connections,
provisioning, etc.
• Bandpass filters in plant
• US diplex filter range
– 5-30, 5-40/42, 5-55, 5-65, …
DOCSIS Security
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45
Another Idea to Utilize All “JIBs”
MC5x20
1x2
DSs 0-3 = 603 MHz
DS0
DS 4 = 609 MHz
U0/C0
1x8
DS4
U0/C0
U1/C2
U2/C4
U3/C16
U4/C8
U5/C10
U1/C2
DS Splitter
1x2 DS1
DS Combiner
U0/C4
US Splitter
U1/C16
Requires:
1x2 DS2
• 2 DS frequencies
U0/C8
• 2 US freqs in each node
U1/C10
• One US freq per DS
U6/C12
1x2
U7/C18
All USs at
28.5 MHz
DOCSIS Security
DS3
• 4 US ports not used
U0/C12
U1/C18
All USs at 25 MHz
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46
Using All US Ports (4, 1x3s and 1, 1x8)
MC5x20
1x3
DSs 0-3 = 453 MHz
DS0
DS 4 = 459 MHz
U0&1/C0
1x8
DS4
U4/C2
U5/C6
U6/C10
U7/C14
U0/C16
U1/C17
U2/C2
DS Splitter
1x3 DS1
DS Combiner
U0&1/C4
US Splitter
U2/C6
Requires:
• 2 DS freqs
• 3 US freqs in some nodes
and only 2 in others
1x3 DS2
U0&1/C8
U2/C10
U2/C18
1x3 DS3
U3/C19
All USs at
28.5 MHz
DOCSIS Security
U0&1/C12
U2/C14
All USs at 25 MHz
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47
Cabling Ideas
DOCSIS Security
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48
Maxnet II Picts
DOCSIS Security
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Maxnet II Picts
DOCSIS Security
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50
Maxnet II Cabling
DOCSIS Security
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51
One RF Switch Option
1 2 3 4 5 6 7 8 P1 P2
DOCSIS Security
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8 7 6 5 4 3 2 1
52
New Technology Cornerstones
DOCSIS Security
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53
Cisco uBR10012 Hardware
PRE1 and PRE2 Specifications
PRE1
PRE2
Benchmark PPS
2.8 Mpps
6.2 Mpps
RP Memory Size
512 MB
1024 MB
FP Memory Size
1024 MB
1024 MB
Packet Buffer
128 MB
256 MB
CM / STB support *
Up to 45K
64K +
Toaster Processors
32
64
RP Clock
267 MHz
500 MHz
Toaster Clock
100 MHz
150 MHz
Line Card Interconnect
1.6 Gb/s
3.2 Gb/s
* Dependant upon features enabled
DOCSIS Security
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New Technology Cornerstones
• DOCSIS 3.0
– Channel Bonding for higher capacity links
Enable faster HSD service
M x N mac domains now
Enable Video over IP solutions
• M-CMTS
– New Architecture for better economics
Lower cost DS PHY
De-couple DS and US ports
• DOCSIS 2.0b
DOCSIS Security
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uBR10012 Wideband Components
uBR10012 Base System
WB SIP
WAN INTERFACE

WB SPA
4x HH-GE
ROUTING ENGINE


2x PRE2 @6 Mpps
RP Redundancy
DOCSIS CARDS


EXTERNAL EDGE QAM
 Off-the-shelf VoD QAM
8x MC5X20
40 DS / 160 US ports per
Chassis
uBR10012 Wideband Kit
WIDEBAND SIP
uBR10012
DOCSIS Security
WIDEBAND SPA
 1 WB SIP/Chassis  2x WB-SPA per Chassis
 2 WAN Slots
 1Gbps/SPA (~24 QAMs/SPA)
 2x WB SPA/WB SIP  Redundant GE Output (SFP)
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56
Linksys Wideband Cable Modem WCM300
Performance and Throughput
• 220 Mbps Wideband DS throughput
• 30 Mbps US throughput
RF Characteristics
• DS frequency range: 108 MHz – 850 MHz
• US frequency range: 5 MHz – 65 or 88 MHz
• DS capture range = 48 MHz
8 channels: Annex B, 6 channels Annex A
• Channels do not need to be contiguous
Compatibility
• Supports Packet Bonding
• Interoperable in a DOCSIS 3.0 environment
• Full DOCSIS 2.0 capable
DOCSIS Security
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57
uBR10012 Architecture Evolution
uBR10012
Today
DOCSIS Security
Wideband
Architecture
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M-CMTS &
DOCSIS 3.0
58
Future-Proofing
• HHGE cards
– 12.3(9)
• MCX cards
• M-CMTS architecture
DOCSIS Security
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Design 1: 2 WB Channels per 8 Nodes
US0
Slot 4/0/0
HH GigE
Node 1
Slot 5/0
US2
1
x
2
Slot 3/0/0
HH GigE
PRE2
US4
Node 2
US6
Node 3
Upstream
US8
1
x
2
US10
Node 4
US12
Node 5
Slot 2
Empty
US14
1
x
2
Unused
Node 6
Unused
Node 7
Unused
Downstream
Slot 1
WB SPA
PRE2
Unused
DS0
603 Mhz
DS1
603 Mhz
DS2
603 Mhz
DS3
603 Mhz
DS4
609 Mhz
8x1
8x1
8x1
8x1
1x4
4x1
eQAM
Combined with Slot 6/1 RF
Combined with Slot 6/0 RF
Combined with Slot 5/1 RF
615 & 621 Mhz
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Node 8
1x4
Combined with Slot 8/1 RF
Combined with Slot 8/0 RF
Combined with Slot 7/1 RF
Combined with Slot 7/0 RF
DOCSIS Security
1
x
2
Boost Configuration is unchanged
Wideband Configuration
US: Up to 27 Mbps per node shared w/ Boost
DS: ~50 Mbps per 8 nodes at 64-QAM
DS: ~70 Mbps per 8 nodes at 256-QAM 60
Expanding Bandwidth to Design 1- Four WB
Channels per 8 Nodes
US0
Slot 4/0/0
HH GigE
Node 1
Slot 5/0
US2
1
x
2
Slot 3/0/0
HH GigE
PRE2
US4
Node 2
US6
Node 3
Upstream
US8
1
x
2
US10
Node 4
US12
Slot 2
WB SPA
Node 5
US14
Node 6
US18
Node 7
Downstream
PRE2
Slot 1
WB SPA
1
x
2
1
x
3
US16
DS0
603 Mhz
DS1
603 Mhz
DS2
603 Mhz
DS3
603 Mhz
8x1
1
x
2
8x1
8x1
Node 8
8x1
DS4
Combined with Slot 8/1 RF
Combined with Slot 8/0 RF
Combined with Slot 7/1 RF
Combined with Slot 7/0 RF
eQAM
1x4
Combined with Slot 6/1 RF
Combined with Slot 6/0 RF
Combined with Slot 5/1 RF
615 & 621 Mhz
Combined with Slot 8/1 RF
Combined with Slot 8/0 RF
Combined with Slot 7/1 RF
Combined with Slot 7/0 RF
eQAM
Combined with Slot 6/1 RF
Combined with Slot 6/0 RF
Combined with Slot 5/1 RF
609 & 627 Mhz
DOCSIS Security
609, 615,
621 & 627 Mhz
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4x1
Boost Downstream added to Wideband BG
Boost USs added into 1x2 MAC domain (LB)
US: Up to 6x27 Mbps per node (LB) shared w/ Optimum
DS: ~100 Mbps per 8 nodes at 64-QAM
DS: ~140 Mbps per 8 nodes at 256-QAM
61
Design 2: 6 WB Channels per 8 Nodes
Combined with Slot 8/1 RF
Combined with Slot 7/1 RF
eQAM
eQAM
Combined with Slot 8/0 RF
Combined with Slot 7/0 RF
US0
Slot 4/0/0
HH GigE
Node 1
Slot 5/0
US2
1
x
2
Slot 3/0/0
HH GigE
PRE2
US4
Node 2
US6
Node 3
Upstream
US8
1
x
2
US10
Node 4
US12
Slot 2
WB SPA
Node 5
US14
1
x
2
Unused
Node 6
Unused
Node 7
Unused
Downstream
Slot 1
WB SPA
PRE2
Unused
DS0
603 Mhz
DS1
603 Mhz
DS2
603 Mhz
DS3
603 Mhz
DS4
609 Mhz
© 2002, Cisco Systems, Inc. All rights reserved.
1
x
2
Node 8
8x1
1x4
eQAM
Combined with Slot 6/0 RF
DOCSIS Security
8x1
Combined with Slot 5/1 RF
Combined with Slot 6/1 RF
eQAM
8x1
8x1
1x4
4x1
615 & 621 Mhz
627 & 633 Mhz
639 & 645 Mhz
Wideband Configuration
US: Up to 27 Mbps per node shared w/ Boost
DS: ~150 Mbps per 8 nodes at 64-QAM
DS: ~210 Mbps per 8 nodes at 256-QAM
62
Other Commercial Offerings
• T1/E1 offerings (CEoIP or BSoD)
• PCMM
• DOCSIS WIC
• MPLS-VPN / L2VPN
• BoD
• RS-DVR, Start-over & Lookback
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
63
CESoIP Config File
03 (Net Access Control) = Yes
22 (Upstream Packet Classification Block)
S01 (Classifier Reference) = 1
S03 (Flow Reference) = 2
S05 (Rule Priority) = 1
S06 (Activation State) = 1
S09 (IP Packet Classification)
T02 (IP Protocol) = 257
T07 (Source Port Start) = 2142
T08 (Source Port End) = 2142
T09 (Destination Port Start) = 2142
T10 (Destination Port End) = 2142
23 (Downstream Packet Classification Block)
S01 (Classifier Reference) = 2
S03 (Flow Reference) = 5
S05 (Rule Priority) = 1
S06 (Activation State) = 1
S09 (IP Packet Classification)
T02 (IP Protocol) = 257
T07 (Source Port Start) = 2142
T08 (Source Port End) = 2142
T09 (Destination Port Start) = 2142
T10 (Destination Port End) = 2142
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
24 (Upstream Service Flow Block)
S01 (Flow Reference) = 1
S06 (QoS Parameter Set Type) = 7
S07 (Traffic Priority) = 3
S08 (Max Sustained Traffic Rate) = 2000000
S15 (Service Flow Scheduling Type) = 2
24 (Upstream Service Flow Block)
S01 (Flow Reference) = 2
S06 (QoS Parameter Set Type) = 7
S15 (Service Flow Scheduling Type) = 6
S16 (Request/Transmission Policy) = 511
S19 (Unsolicited Grant Size) = 1052
S20 (Nominal Grant Interval) = 10000
S21 (Tolerated Grant Interval) = 2000
S22 (Grant/Interval) = 2
25 (Downstream Service Flow Block)
S01 (Flow Reference) = 4
S06 (QoS Parameter Set Type) = 7
S07 (Traffic Priority) = 3
S08 (Max Sustained Traffic Rate) = 2000000
25 (Downstream Service Flow Block)
S01 (Flow Reference) = 5
S06 (QoS Parameter Set Type) = 7
S07 (Traffic Priority) = 5
S08 (Max Sustained Traffic Rate) = 1700000
29 (Privacy Enable) = yes
64
Cable HWIC/WIC Overview
Enabling Cable Commercial Services with Cisco ISR
Broadcom DOCSIS 2.0
CM daughter card
• Cable HWIC/WIC will deliver DOCSIS 2.0 &
EuroDocsis/J-Docsis compliant HFC
interface (Cable)
• Utilizing Broadcom chipset
• Dual mode, able to operate as WIC or HWIC
• Packetcable Multimedia Support
• DOCSIS QoS & IOS router QoS interaction
• Offering 2 SKUs + Fixed-config cable router
• Modular Platform support:
1841, 2800, 3800, IAD243x
2691, 3700 (post FCS)
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
65
Cable HWIC/WIC (cont)
• Additional Features (post FCS):
– Multiple Cable HWIC support per router
– TDM clock sync with DOCSIS clock
• Program Update
– Customer Beta in progress at:
Cox, TWC, Sprint, Charter, Bresnan, UPC
Broadband & Essent Kablecom
• Performance evaluation
– CableLabs cert: Cable HWIC + ISR submit in July, 06
– Tcomlabs cert for EuroDocsis: targeting Aug, 2006
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
66
Cisco 815 Fixed-Config Cable Router
• Key Features
4 Port Managed
10/100 Switch
• Integrated DOCSIS 2.0 CM WIC
Console
Port
Cable WIC
• Integrated 4 Port 10/100 Managed
Switch
•
IEEE 802.1Q VLAN
•
Spanning Tree
• One additional Fast Ethernet Port
•
WAN backup, DMZ
• IOS Advanced Routing and QoS
10/100
Port
AUX
Port
•
RIP, OSPF, BGP, EIGRP
• Optional Upgrade:
Replacement for uBR905!
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
•
VPN/Firewall/IPS/Easy VPN Security
•
IPSec 3DES Hardware Acceleration
67
Cisco 815 & uBR905 Comparison
Cable Modem
LAN
10/100 WAN Backup
802.1Q VLAN
Advanced Routing,
QoS
Security
uBR905
Cisco 815
DOCSIS 1.1
DOCSIS 2.0
4-Port 10T Hub
4-Port 10/100
Managed Switch
No
Ext. Dial Backup
No
Yes (16 VLANs)
RIP, Basic QoS
RIP, OSPF, BGP, Adv
QoS
IPSec VPN, FW,
EZVPN
IPSec VPN, FW, IPS,
EZVPN, DMVPN, NAC
8 Mbps (target)
4-5 Mbps
IPSec VPN
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
68
Multiservice Capabilities
Cable Access Router Portfolio
Complete Offerings for Cable Operators
Cable HWIC can be
used with 12
different modular
router models
3700/3800 w/
Cable HWIC
IAD243x w/
Cable HWIC
2691/2800 w/
Cable HWIC
1841 w/
Cable HWIC
815 Fixed Config
SMB/Small Branch
SOHO
Primary WAN
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
Enterprise Branch
Primary WAN, WAN Backup, WAN offload
69
Summary
• Separation of tiers of service
• Math & new designs are beginning steps
• Monitor actual traffic load and manage fair
use of network
• Bandwidth usage monitoring/shaping
• Determine when additional capacity is
necessary
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
70
DOCSIS Security
© 2002, Cisco Systems, Inc. All rights reserved.
71