bandwidth playbook
DESCRIPTION
Bandwidth Playbook. Thwarting Fiber-to-the-Home Competition. John J. Downey Broadband Network Engineer Cisco Systems [email protected]. Agenda. Speeds and Feeds Competitive Outlook (FiOS) Objectives Current & New Speed Offerings Future Evolution Options Cablevision’s Choice Configs - PowerPoint PPT PresentationTRANSCRIPT
1© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Bandwidth Playbook
Thwarting Fiber-to-the-Home Competition
John J. DowneyBroadband Network Engineer
Cisco [email protected]
222© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
3© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Speeds and Feeds
444© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Objectives
• Use existing HFC network
• Separation of tiers of service
• Bandwidth usage monitoring/shaping
• Security Issues - mitigate “hackers”
• Number of subs per port
555© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
666© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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 re-evaluated and probably decreased
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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
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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
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Option 1 - Same CMTS with Frequency Separation
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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
131313© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Separating CMs Through Client-Class Processing
CMTS
PC XMAC Address:
01:02:03:04:05:06
Cable Modem X
MAC Address:ab:cd:ef:01:02:03
scope24.1.1.0
.125-.255
ab:cd:ef:01:02:03
01:02:03:04:05:06
........
PC TagPC Class
PC tag
Client Entries
Scope10.1.1.0.2-.124
Res Modem Class Modem Tag
Modem Tag
ScopesClient Classes ScopeTags
Scope10.2.2.0.2-.124
INET Modem Class Modem Tag
Modem Tag
ScopesClient Classes ScopeTags
02:03:04:06:aa:06
Cable Modem Y
MAC Address:02:03:04:06:aa:06
Provisioning Server
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Option 1 - Separating CMs via FDM & Provisioning
U0 = 20.0 MHz @ 3.2 MHzU0 = 23.2 MHz @ 3.2 MHz
DS0 = 453 MHz @ 256-QAMDS1 = 459 MHz @ 256-QAM
DS0
U0
U1
U2
U3
DS1
U0
U1
U2
U3
151515© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Option 1 - Questions to Answer
• Multiple DSs broadcast because of EDFAs?– Broadcast makes it difficult to achieve 1:1 DS-
to-node combining later down the road
• Nodes with 1 DS Rx & 2 US Txs?– 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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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 64-QAM for ~ 13 Mbps
181818© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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 & >
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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?
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Option 2 - Separate CMTSs
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Option 2 - Diagram
DS0
U0
U1
U2
U3
CMTS A
DS1
U0
U1
U2
U3
CMTS B
• 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
232323© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
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Option 3 - Same as Option 1, but Utilizing ATDMA
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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
262626© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
• DS0/U0 = TDMA (1.x mode)
• DS1/U0 = ATDMA (2.0-only)
• Only allows 2.0 CMs to "see" DS1/U0 & register on it
Option 3 - Diagram
DS0
U0
U1
U2
U3
DS1
U0
U1
U2
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
292929© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
303030© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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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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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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
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Option 3 – Pros and Cons
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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
353535© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
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Cablevision’s Choice
373737© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
New Architecture Idea Using Option 3
Ups
trea
m
US0
US2
US4
Unused
Dow
nstr
eam
DS0
DS1
DS2
DS3
DS4
US14
US12
US10
US8
US6
Unused
Unused
Unused
Slo
t 2/0
GE
Slo
t 1/0
GE
1x4609 Mhz
8x1
8x1
8x1
8x1
603 Mhz
603 Mhz
603 Mhz
603 Mhz
1x2
PR
E1
or P
RE
2P
RE
1 or
PR
E2
1x2
1x2
1x2
Node 1
Node 2
Node 3
Node 4
Node 5
Node 6
Node 7
Node 8
Slo
t 3/0
Em
pty
Slo
t 4/0
Em
pty
Slo
t 5/0
383838© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
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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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CMTS Configuration
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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
424242© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
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
434343© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
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
444444© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
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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, …
464646© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Another Idea to Utilize All “JIBs”
DS0
U0/C0
U1/C2
1x2
DS1
U0/C4
U1/C16
1x2
DS4
U0/C0
U1/C2
U2/C4
U3/C16
U4/C8
U5/C10
U6/C12
U7/C18
1x8DS 4 = 609 MHz
DSs 0-3 = 603 MHzMC5x20
DS2
U0/C8
U1/C10
1x2
DS3
U0/C12
U1/C18
1x2
DS Combiner
US Splitter
DS Splitter
Requires:
• 2 DS frequencies
• 2 US freqs in each node
• One US freq per DS
• 4 US ports not used
All USs at 28.5 MHz
All USs at 25 MHz
474747© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Using All US Ports (4, 1x3s and 1, 1x8)
DS0
U0&1/C0
U2/C2
1x3
DS1
U0&1/C4
U2/C6
1x3
DS4
U4/C2
U5/C6
U6/C10
U7/C14
U0/C16
U1/C17
U2/C18
U3/C19
1x8DS 4 = 459 MHz
DSs 0-3 = 453 MHzMC5x20
DS2
U0&1/C8
U2/C10
1x3
DS3
U0&1/C12
U2/C14
1x3
DS Combiner
US Splitter
DS Splitter
Requires:
• 2 DS freqs
• 3 US freqs in some nodes and only 2 in others
All USs at 28.5 MHz
All USs at 25 MHz
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Cabling Ideas
494949© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Maxnet II Picts
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Maxnet II Picts
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Maxnet II Cabling
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1 2 3 4 5 6 7 8 P1 P2 8 7 6 5 4 3 2 1
One RF Switch Option
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New Technology Cornerstones
545454© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
RP Memory SizeRP Memory Size
PRE1PRE1 PRE2PRE2
CM / STB support *CM / STB support *
512 MB512 MB 1024 MB
Up to 45K Up to 45K
FP Memory SizeFP Memory Size 1024 MB1024 MB 1024 MB
Toaster ProcessorsToaster Processors 3232 64
RP ClockRP Clock 267 MHz267 MHz 500 MHz
Toaster ClockToaster Clock 100 MHz100 MHz 150 MHz
Benchmark PPSBenchmark PPS 2.8 Mpps2.8 Mpps 6.2 Mpps
Packet BufferPacket Buffer 256 MB128 MB128 MB
Line Card InterconnectLine Card Interconnect 1.6 Gb/s1.6 Gb/s 3.2 Gb/s
Cisco uBR10012 HardwarePRE1 and PRE2 Specifications
* Dependant upon features enabled
64K +
555555© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
New Technology Cornerstones
• DOCSIS 3.0 – Channel Bonding for higher capacity links
Enable faster HSD serviceM x N mac domains nowEnable Video over IP solutions
• M-CMTS – New Architecture for better economics
Lower cost DS PHYDe-couple DS and US ports
• DOCSIS 2.0b
565656© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
uBR10012 Wideband Components
uBR10012 Base System
uBR10012
WB SIP
WB SPA
WAN INTERFACE 4x HH-GE
ROUTING ENGINE 2x PRE2 @6 Mpps RP Redundancy
DOCSIS CARDS 8x MC5X20 40 DS / 160 US ports per
Chassis
WIDEBAND SIP 1 WB SIP/Chassis 2 WAN Slots 2x WB SPA/WB SIP
EXTERNAL EDGE QAM Off-the-shelf VoD QAM
uBR10012 Wideband Kit WIDEBAND SPA
2x WB-SPA per Chassis 1Gbps/SPA (~24
QAMs/SPA) Redundant GE Output
(SFP)
575757© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Linksys Wideband Cable Modem WCM300
Performance and Throughput• 220 Mbps Wideband DS throughput • 30 Mbps US throughput
Compatibility• Supports Packet Bonding • Interoperable in a DOCSIS 3.0 environment • Full DOCSIS 2.0 capable
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
585858© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
uBR10012 Architecture Evolution
uBR10012
Today M-CMTS & DOCSIS 3.0
WidebandArchitecture
595959© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Future-Proofing
• HHGE cards
– 12.3(9)
• MCX cards
• M-CMTS architecture
606060© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Design 1: 2 WB Channels per 8 Nodes
Boost Configuration is unchangedWideband ConfigurationUS: Up to 27 Mbps per node shared w/ BoostDS: ~50 Mbps per 8 nodes at 64-QAMDS: ~70 Mbps per 8 nodes at 256-QAM
Up
stre
am
US0
US2
US4
Unused
Do
wn
stre
am
DS0
DS1
DS2
DS3
DS4
US14
US12
US10
US8
US6
Unused
Unused
Unused
Slo
t 2E
mpt
y
Slo
t 4
/0/0
HH
Gig
ES
lot 3
/0/0
HH
Gig
ES
lot 1
WB
SP
A
PR
E2
PR
E2
Slo
t 5
/0
1x4609 Mhz
8x1
8x1
8x1
8x1
603 Mhz
603 Mhz
603 Mhz
603 Mhz
1x2
1x2
1x2
1x2
eQAM
Node 1
Node 2
Node 3
Node 4
Node 5
Node 6
Node 7
Node 8
1x4
615 & 621 MhzCombined with Slot 5/1 RFCombined with Slot 6/0 RFCombined with Slot 6/1 RF
Combined with Slot 7/0 RFCombined with Slot 7/1 RFCombined with Slot 8/0 RFCombined with Slot 8/1 RF
4x1
616161© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Expanding Bandwidth to Design 1- Four WB Channels per 8 Nodes
Boost Downstream added to Wideband BGBoost USs added into 1x2 MAC domain (LB)US: Up to 6x27 Mbps per node (LB) shared w/ OptimumDS: ~100 Mbps per 8 nodes at 64-QAMDS: ~140 Mbps per 8 nodes at 256-QAM
Ups
trea
m
US0
US2
US4
US16
Dow
nst
rea
m
DS0
DS1
DS2
DS3
DS4
US14
US12
US10
US8
US6
US18
Slo
t 2W
B S
PA
Slo
t 4/0
/0H
H G
igE
Slo
t 3/0
/0H
H G
igE
Slo
t 1W
B S
PA
PR
E2
PR
E2
Slo
t 5/
0
8x1
8x1
8x1
8x1
603 Mhz
603 Mhz
603 Mhz
603 Mhz
1x2
1x2
1x2
1x2
eQAM
Node 1
Node 2
Node 3
Node 4
Node 5
Node 6
Node 7
Node 8
1x4
615 & 621 MhzCombined with Slot 5/1 RFCombined with Slot 6/0 RFCombined with Slot 6/1 RF
Combined with Slot 7/0 RFCombined with Slot 7/1 RFCombined with Slot 8/0 RFCombined with Slot 8/1 RF
eQAM
609 & 627 Mhz
4x1
Combined with Slot 5/1 RFCombined with Slot 6/0 RFCombined with Slot 6/1 RF
Combined with Slot 7/0 RFCombined with Slot 7/1 RFCombined with Slot 8/0 RFCombined with Slot 8/1 RF
609, 615,621 & 627 Mhz
1x3
626262© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Design 2: 6 WB Channels per 8 Nodes
Wideband ConfigurationUS: Up to 27 Mbps per node shared w/ BoostDS: ~150 Mbps per 8 nodes at 64-QAMDS: ~210 Mbps per 8 nodes at 256-QAM
eQAM
Up
stre
am
US0
US2
US4
Unused
Do
wns
tre
am
DS0
DS1
DS2
DS3
DS4
US14
US12
US10
US8
US6
Unused
Unused
Unused
Slo
t 2W
B S
PA
Slo
t 4/0
/0H
H G
igE
Slo
t 3/0
/0H
H G
igE
Slo
t 1W
B S
PA
1x4609 Mhz
8x1
8x1
8x1
8x1
603 Mhz
603 Mhz
603 Mhz
603 Mhz
615 & 621 Mhz
1x2
PR
E2
PR
E2
1x2
1x2
1x2
eQAM
eQAM eQAM
Node 1
Node 2
Node 3
Node 4
Node 5
Node 6
Node 7
Node 8
1x4
4x1
639 & 645 Mhz627 & 633 Mhz
Combined with Slot 5/1 RF
Combined with Slot 6/0 RF
Combined with Slot 6/1 RF
Combined with Slot 7/0 RF
Combined with Slot 7/1 RF
Combined with Slot 8/0 RF
Combined with Slot 8/1 RF
Slo
t 5
/0
636363© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Other Commercial Offerings
• T1/E1 offerings (CEoIP or BSoD)
• PCMM
• DOCSIS WIC
• MPLS-VPN / L2VPN
• BoD
• RS-DVR, Start-over & Lookback
646464© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
CESoIP Config File03 (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
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) = 224 (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) = 225 (Downstream Service Flow Block) S01 (Flow Reference) = 4 S06 (QoS Parameter Set Type) = 7 S07 (Traffic Priority) = 3 S08 (Max Sustained Traffic Rate) = 200000025 (Downstream Service Flow Block) S01 (Flow Reference) = 5 S06 (QoS Parameter Set Type) = 7 S07 (Traffic Priority) = 5 S08 (Max Sustained Traffic Rate) = 170000029 (Privacy Enable) = yes
656565© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
• 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)
Broadcom DOCSIS 2.0 CM daughter card
Cable HWIC/WIC Overview
Enabling Cable Commercial Services with Cisco ISR
666666© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
676767© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Cisco 815 Fixed-Config Cable Router
10/100Port
Cable WICCable WICCable WICCable WICConsole
Port
4 Port Managed4 Port Managed10/100 Switch10/100 Switch
4 Port Managed4 Port Managed10/100 Switch10/100 Switch
AUXPort
• Key Features
• Integrated DOCSIS 2.0 CM 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• RIP, OSPF, BGP, EIGRP
• Optional Upgrade:• VPN/Firewall/IPS/Easy VPN Security
• IPSec 3DES Hardware Acceleration
Replacement for uBR905!
686868© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Cisco 815 & uBR905 Comparison
uBR905 Cisco 815Cable Modem DOCSIS 1.1 DOCSIS 2.0
LAN 4-Port 10T Hub 4-Port 10/100 Managed Switch
10/100 WAN Backup No Ext. Dial Backup
802.1Q VLAN No Yes (16 VLANs)
Advanced Routing, QoS
RIP, Basic QoS RIP, OSPF, BGP, Adv QoS
Security IPSec VPN, FW, EZVPN
IPSec VPN, FW, IPS, EZVPN, DMVPN, NAC
IPSec VPN 4-5 Mbps 8 Mbps (target)
696969© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
Cable Access Router PortfolioComplete Offerings for Cable Operators
2691/2800 w/ Cable HWIC
3700/3800 w/ Cable HWIC
Primary WAN Primary WAN, WAN Backup, WAN offload
IAD243x w/ Cable HWIC
Mu
ltis
ervi
ce C
apab
ilit
ies
Cable HWIC can be used with 12 different modular router models
1841 w/ Cable HWIC
815 Fixed Config
Enterprise BranchSMB/Small BranchSOHO
707070© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security
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
717171© 2002, Cisco Systems, Inc. All rights reserved.DOCSIS Security