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Deploying.
Corey Chapman Manager, Technical Marketing Cable Access BU
Jeff Forhan Network Consulting Engineer Cable Access BU
Adeel Ahmed Manager, Advanced Services US SP Cable Infrastructure
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1
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A enda Introduction
The Broadband Network Engineering Team
a s .
Where are we with DOCSIS 3.0 and how did we get here?
Introducing two new DOCSIS 3.0 line cardsMC88V
MC2020V
De lo in DOCSIS 3.0Channel bonding specifics
I-CMTS best practices
. Deployment examples
Scalabilit and Cost Efficienc
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 2
Q&A
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The Broadband Network En ineerin Team John Downey and Jeff Forhan
Established and respected industry wide with CMTS operational andbest practices expertise
Corey Chapman
ew o e eam an . rev ous years as sco n a e
Team Vision: Facilitate rapid and seamless adoption of
Current areas of focus
New D3.0 Linecards - education and customer de lo ment lannin
VDOC engagements
Reactive system level troubleshooting as needed
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 3
Best practices updates
USCB, I-CMTS/M-CMTS/hybrid, SNMP Monitoring
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.
IPv6
Upstream Channel BondingDownstream Channel Bonding
v rov s on ng anagemen o s
Alternative Provisioning Mode & Dual-stackManagement Modes for CMs
IPv6 Connectivity for CPEs
Topology and ambiguity resolution
Latency and Skew measurements
CM Status and Control
IP Multicast
Source Specific Multicast (SSM)
PHS, QoS, and Authorization
Security
Enhanced Traffic Encryption
Enhanced Provisioning Security
IGMPv3/MLDv2
Physical Layer
Extended US/DS Freq Range
Network Management
CM Diagnostic Log
Enhanced Signal Quality Monitoring
- c ve o e e ec on
Business Services over DOCSIS
Layer 2 Virtual Private Networks
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 4
IPDR Service Statistics Reporting
Capacity Management
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Cisco DOCSIS 3.0 Milestones
Cisco is delivering DOCSIS 3.0 first
Invented channel bonding (Wideband) in 2001
First public demo of DS Channel Bonding in 2005
First 3.0 + M-CMTS integration in 2006
Highest speed channel bonding trial 293 Mbps
DOCSIS 3.0 hardware shipped Dec. 2006 First US Channel Bonding interop in July 2007
Bronze qualification in 1st Cert Wave Dec. 2007
US bonding code in Bighorn release Nov 2009
Over 4M Wideband subscribers worldwide
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 5
Over 50M 3.0-capable homes passed
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M-CMTS
uBR10012
sco s n a pa o .
Single-ChannelCable Modem
DTCC+DTI
Server
USRFGW-1/
SIP
Multi-ChannelCable ModemSPA
-Universal
EQAM
SPA Multi-ChannelCable Modem
US
-AsyncEQAM
MC520H
Cable Modem
Single DS / USMulti DS / Single USPrimary from QAM4 DS / 4 US bonding
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 6
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M-CMTS enables flexible, cost effective D3.0 coverage
Common 2010 de lo ment confi uration
10K serving 35SG
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 7
7+1 5x20
3 DS SPAs 2 10ks connect to 1 RFGW10 with 3+1 DS48
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DOCSIS 3.0 Linecards
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 9
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CMTS Product Portfolio
uBR7246VXRuBR7225VXR
- 30K chassis sold- 1M s - 6M pps-
- Ideal for small sites- 1M s
- 8 x 32 Capacity withD2.0 Linecard
- Expandable to 32 x 32
- 304 x 160 Capacity withnew D3.0 Linecard
- I-CMTS & M-CMTS
- 4 x 16 Capacity withD2.0 Linecard
- Expandable to 16 x 16
.- I-CMTS
Common DOCSIS & IOS Software features
.- I-CMTS
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 10
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UBR-MC88 Line Card .
New fully compliant DOCSIS.
Series Operates in 8 DS, 8 US mode
on
Operates in 8 DS, 8 US mode
on UBR7246VXR
4x DS density of the existingMC28U line card
UBR-MC88V
-
- Shipping since March, 2010
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 11
- ow s pp ng n vo ume
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Cisco uBR10K MC2020V Linecard
Full DOCSIS 3.0 support
Downstream Bonding
Upstream Bonding
IPv6
Multicast
AES
Same RF Cabling
Very low operational impact x capac y n same
footprint
40 88 184 304 DS ports
>10Gb s CMTS solution
Full HA support
Works with PRE2
PRE4 a capacity engineering decision
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 12
Licensing options for adding
downstreams via software
- ,- Now shipping in volume
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20x20 Line Card Pricingcense ase pay as you grow
s r ce ro uc
0x20 $ 81,000 UBR-MC20X20V-0D
5x20 $ 91,000 UBR-MC20X20V-5D
20x20 $121,000 UBR-MC20X20V-20D
5DS license $ 10,000 UBR-SWLIC-MC5DS
15DS license $ 30,000 UBR-SWLIC-MC15DS
20DS license $ 40,000 UBR-SWLIC-MC20DS
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 13
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.Deployment Considerations
Jeff Forhan Network Consulting Engineer Cable Access BU
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 14
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Fiber Node Describes the plant topology, the set of US and DS channels that
can be seen by a group of modems.
Controller Modular-Cable The Modular-Cable controller represents a Wideband
SPA and an instance of this controller is created for each SPA in a Jacket card.EQAM connectivity information and physical parameters such as QAM frequency,modulation type etc. are configured under the controller. We will continue to use
e o en er e c anne ere.
Interface Modular-Cable An instance of the Modular-Cable interface is exposed
to the user when the corresponding RF channel of the SPA is designated as aprimary capable (NB) downstream channel. Layer 3 features such as cablebundle, cable ARP, DSG, static multicast, etc. are configured under this interface.
Interface Wideband-Cableinterface to represent a Bonding Group. The SPA RFchannels that make up this Bonding Group are configured under this interface
Max of 24 because 48 max supported channels for 2 SPAs and at least 2channels per bonding group.
Downstream Modular-Cable command Used under cable interface to specify
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 15
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.
Uses external QAMs connected to SPA
Increase legacy downstream port density of ubr10k
Uses M-CMTS compliant Edge-QAM (EQAM) devices
- -
Other M-CMTS compliant Edge-QAMs
Uses DTI timing source for DS channels
Enables legacy DOCSIS [1.x/2.0] modems to use external QAMs foroperation
Allows MxN mac domains
Eliminates the need for a PC from 5x20 card
Allows bonding on all channels in a BG
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 16
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Restrict legacy eMTAs to Local DS
cabl e ser vi ce at t r i but e voi ce- enabl ed downst r eam- t ype HA- capabl e
Enforce legacy CMs to only register on Primary-only DS or move to aspecific DS frequency
cabl e ser vi ce at t r i but e non- ds- bonded downst r eam- t ebondi ng- di sabl ed
cabl e ser vi ce at t r i but e non- ds- bonded l egacy- r angi ng
downst r eam- t ype f r equency
Force 3.0-capable CMs to initialize on Remote/e-qam DS
cabl e servi ce at t r i but e ds- bonded downst r eam- t ype-
Can specify UCDs sent for each DS
Example CLI: i nt er f ace Cabl e5/ 0/ 0
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 17
downst r eam Modul ar - Cabl e 1/ 0/ 0 r f - channel 0 upst r eam 1 3
downst r eam l ocal upst r eam 0 2 4
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- 52 dBmV max power in quad-stacked mode
Best ractice: desi n for 50 dBmV out ut so 52 dBmV can bereached for Protect card
Verify Fiber Node configs with US connector assignments
Upstreams required in Fiber Node config in 12.2(33)SCC and later
Remove cable service attribute non-ds-bonded downstream-type bonding-disabled
Most I-CMTS deployments have all channels as primary and bonding
Validate BW % statements for VoIP and CIRUsed for Call Admission Control even if AC is not configured
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 18
Utilize DS Ch ID defaults
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.
Requires DSCB
on s mu p e, p ys ca ups ream ransm c anne s o orm a
larger, logical upstream channel. DOCSIS 3.0 required that CM must have 4 or more upstream
100mbps+ upstream rate
Removed DOCSIS 2.0/1.x single request-grant cycle bottleneck.
- .
BW can be requested on any of the bonded upstream channels
Requests can be granted on any of the bonded upstream channels
Reduced upstream latency (TCP ACK) also increases DSthroughput. [TCP application]
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 19
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SID Cluster
A group of SIDs containing one and only one SID for each upstream channel within an upstream bonding group
.
SID Cluster Group - The set of all SID Clusters associated with a specific service flow.
MTC Mode - Multi-transmit channel mode.
Transmit Channel Configuration (TCC)
TLV settings in Registration and DBC MAC Management Messages
e ne opera ons suc as a on, e e on, c ange, rep acemen , or re-rang ng o one or more c anne s n e oa cable modem.
Transmit Channel Set (TCS)
Set of upstream channels that a CM is configured to use for upstream transmission
Each upstream service flow of the cable modem may be associated with some or all of the channels in the TCS The TCS of a cable modem is conve ed from a CMTS to a cable modem throu h the TCC field in the REG-RSP messa e
Upstream Service Group
Complete set of Upstream Channels (UCs) within a single CMTS potentially reachable by the transmission of a singleCable Modem
In an HFC deployment, an US-SG corresponds to the physical combining of the upstream from one or more Fiber Nodesreaching a single CMTS.
The subset of an Upstream Service Group (US-SG) which is confined to the Upstream Channels of a single MAC Domain A MD-US-SG differs from a US-SG only when multiple MAC domains are defined per US-SG.
T4 Timeout Multiplier
Value added by CMTS to RNG-RSP messages to modems in MTC mode.
- -
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 20
Continuous Concatenation and Fragmentation (CCF)
Treats each bonded SF as a continuous stream of data
Ambiguity Resolution Topology resolution
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Upstream bonding
Single flow can consume all BW on multiple USs
Continuous Concatenation & Fragmentation (CCF)
Improved form of concatenation and fragmentation that isneeded for DOCSIS 3.0 operation
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 22
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Queue Depth Request -
Multiple outstanding request/grants SID Cluster
Up to 8 SID cluster per service flow (TI & BCM support 2 currently)
SID cluster is used to account for req/grant in given window (time, number of request, total byte)to avoid additive delay to use lost sync of req/grant.
SID cluster switching
Segmentation Header operates on a segment as s
A segment is an individual data grant to a service flow
CCF packs the grants with data in a streaming manner
The segmentation with CCF is performed on a per-service flow basis
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 23
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2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 24
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Requests made based on bytes, not minislots
All burst profiles available for dataCCF requests are made in bytes
CMTS is free to use any IUC to grant data (IUC5,6,9,10,11)
Opens the path to new forms of spectrum management and
reduces the need for logical channels.
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 25
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- Multi-transmit channel mode
Modems make queue-depth based requests
Queue-Depth request is in unit of byte vs DOCSIS 1.x/2.0 mini-slot based request.
REG-RSP with Transmit Channel Config [TCC] TLV Adds a list of upstream channels into cable modem transmit channel set.
Multi-Channel Ranging Instantiation of per channel ranging parameters
Per channel ranging state machine / scheduling
CM instance data structure contains:An array of transmit channel info
US Ambiguity Resolution Upstream Channel Set
CM upstream TCS
CM upstream capability, such as number of transmitters
DOCSIS 1.x/2.0 CM behaves as a special case, that has ONLY 1 transmit channel.
Modem goes offline, if all upstream channels associated with primary US service flow are down
T4 Multiplier to reduce number of RNG MAC message
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 26
Default T4 of 30 seconds (T4 Multiplier of 1)
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Plant Topology
In DOCSIS 3.0 it is mandatory that the plant topology (fibernodes and how they are split/combined) is configured in theCMTS
Ambiguity Resolution
An efficient process for determining which FN a CM is,service group its connected too) is possible thanks to the factthat plant topology is reflected in the MDD
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 27
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CMTS considerations:
Is DSCB configured? USCB requires DSCB
Are the US assigned to an USBG?
What MTC-mode are you using?
Do you need a required attribute mask?Is the attribute in the CM bin file?
Does the USBG have the correct channels?
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 28
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Modem/Plant/Subscriber side considerations:
Is there too much attenuation in the US RF path?
Look at the show cable modem verbose
IM = waiting for initial maintenance SM = waiting for station maintenance
Cont = continuous ranging (ranging miss or adjustment is needed) STA = station maintenance DR = down & recovery with extended ranging opportunities DT = down due to timeout, and no recovery DI = down due to interface shutdown
Channel Tx PWR within the dynamic ranging window?
Are there excessive corrected or uncorrected code words?
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 29
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DOCSIS 3.0 introduces the concept of attribute masks
Can be used for ANY DOCSIS modem (1.x/2.0/3.0) Two main t es:
1. Cable Modem (CM) Attribute Masks
2. Service Flow Attribute Masks
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 30
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Advanced Services
Adeel Ahmed Manager, Advanced Services US SP Cable Infrastructure
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 31
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Cable / CMTS
,
EQAM RFGW-1, RFGW-10, NSG9000 Cable NMS & Provisioning - CNR/ BAC
DOCSIS 1.x, 2.0, 3.0
DOCSIS Set-top Gateway (DSG), Switched Digital Video
(SDV), Video-Over-DOCSIS (VDOC) PacketCable Voice, PCMM
Cable Security
CRS, 7600, GSR, 6500 & Catalyst Switches etc.
Routing & Switching, MPLS/VPLS, IPv6
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 32
Multicast Video
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Design/Implementation Support: HLD and LLD, configuration, ,
features etc. MOP Development: SW/HW upgrades, new feature deployment,
a a co ec on or pro em reso u on e c.
Software Recommendation: Software strategy, IOS Risk
Assessments and Bug Analysis.
Knowledge Transfer: Provide training to customers, other teams inCA, Sales & Partners.
windows, new feature/service deployment etc.
P1/P2 Network Outages: Recreates for customer problems for
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 33
roo -cause ana ys s an prov ng wor -aroun .
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Deployment Support Proof of Concept Testing
as c ns a a on
Test & Turn-up
Confi uration loadin
a a e . es gn
and featuresBasic turn-up of CMTS with
RF Cabling
Migration Support
ea ures s e n eHLD/LLD documents
eMTA readiness testingRemote NOC cutoversupport
Onsite mi ration su ort
Network Ready for Use(NFRU) testing
Node Combining Plan (NCP)creation
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 34
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Integrated Services Model for Cable
olio SLA/Assurance
ice
P
ort
Program Management
Testin & Validation
Systems/Network IntegrationDiscrete PDI Services
Optimize(Proactive Support)
Ser
SP BaseHTTS
(Reactive Support)
AdvisoryServices
(Not part of the scope)
Design Implement OperatePlanPrepare Optimize
vities - Cable Plant
Assessment
- IP Network
- RF Cabling& build-out
- Headend
- DesignCollaboration
- HLD & LLD
- NetworkImplementation
/ Migration Plan
-Post-DeploymentSupport
- Network
-CMTS/HFC Audits,Health Checks
- Software
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 35
Ac
ti Assessment- Outside PlantServices
- NodeOptimization
- Design Report
- Development
- Deployment
Support
Resolution
- Day 2 Support
Bug Analysis
- Knowledge Transfer
& Mentoring
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.Deployment Examples
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 36
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MC2020V and MC88V provide direct path for 4x4
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 37
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MC2020V and MC88V provide direct path for 4x4
Some NA operators ares annin 860 MHz,
leveraging 1GHz plant
upgrades for D3.0 BW
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 38
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Option for recombining the upstream in split return
DS-SPA modulardownstreams can be used
with MC2020V
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 39
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Slot 8/0
Node 1
iceGroup
US0
US2/0 E 0/0 A
1x2
Resources (Per SG)
1x
2
Node 2
Node 3
Serv
iceGroup
US4
US8
US6
3/2
10
PRE4
Slot5/
3/0
S 1x2 requenc es5 Primary
4 US frequencies2 ch US bonding
1x2
Node 4
Node 5
iceG
roup
Servi
Upstream
US14
US12
US10
3/3/
SP
3/1/
SP
2
x1
585, 591, 597, 603 MHz
1x2
Node 6
Node 7
iceGroup
Serv
4x1
US16
DS0
US18
1/0/0
SPA
PRE4
1/2/0
10G
1x2
Node 8Ser
4x1
4x1
4x1
1x4
DownstreamDS1
DS2
DS3
DS4
1
/1/0
S
PA
1
/3/0
S
PA
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 40
609, 615, 621, 627 MHz
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-
3 US freqs
4, 5x5 MAC domains with ATDMA & TDMA US
2-ch US bonding
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 41
8-ch DS bonding
5 Primary chs available for LB
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-
3.2 MHz
6.4 MHz
,
2-ch ATDMA US bonding (50 Mbps)
TDMA = quarantine ch for 1.x CMs and DSG settop
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 42
Legacy 2-ch US load balance
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.Scalability and CostEfficiency
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 43
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TCC
MC520PLINKCisco had the industrys
lowest CMTS cost er
120%
l Cost per Downstream
downstream in 2006-2007
80%
100%
ream
Chann
sper
RU)
DS : 40
US : 160
DOCSIS : 1.x, 2.0
40%
60%
stper
Dow
ns
Dens
ity
(M
b
RF Performance
RF Density
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 44
0%
20%Co
IPv6 MC520
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DTCC
MC520PLINK
SPAStarting in 2007, Ciscoprovided 45% lower
120%
l Cost per Downstream
.Wideband SPAs
DS : 4088 US : 160 DOCSIS : 1.x, 2.0, 3.0 BRONZE
80%
100%
ream
Chann
sper
RU)
- -
>2x DS Capacity D1.x/2.0 Load Balancing
40%
60%
stper
Dow
ns
Dens
ity(M
b
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 45
. on e erv ces NO RF Re-Cabling Lo OPEX
0%
20%Co
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DTCC
In Q1 2009, Cisco
MC520
3.0
SPA
LINK
SPA
41% cost reduction
with SIP-600 & 4additional SPAs
6D
2U
120%
l
Cost per Downstream
DS : 4088184 US : 160 DOCSIS : 1.x, 2.0, 3.0 BRONZE
80%
100%
tream
Chann
sper
RU)
- -
>4x DS Capacity Scale and High Availability
40%
60%
stper
Dow
ns
Dens
ity(
Mb
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 46
.x . an . on ng NO RF Re-Cabling Lo OPEX
0%
20%C
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DTCCIn Q4 2009, Cisco
rovides 2 times the
MC2020
3.0
SPA
LINK
SPAdensity in the same
chassis
6D
2U
120%
l Cost per Downstream
AND another 25% costreduction!
DS : 4088184304 US : 160 DOCSIS : 1.x, 2.0, 3.0 FULL
80%
100%
ream
Chann
sper
RU)
ens y
- -
>7x DS Capacity Large Scale, HA & USCB
40%
60%
stper
Dow
ns
Dens
ity(M
b
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 47
.x . an . on ng NO RF Re-Cabling Lo OPEX
0%
20%Co
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Efficient
Re-use 10k components for DOCSIS 3.0.
Delivering the right D3.0 features at the right time
Incrementalcapacity without affecting other services or currentlydeployed assets
Licensing model that minimizes operational impact but
allows incremental rowth model
Cost EffectiveMinimal equipment investment to add DS channelbondin or additional DOCSIS 2.0 DS ca acit
No up front loading of capacity, pay as you growInvestment Protection, no chassis forklifts
2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 48
AS, SEs, BU/BNE, SPSU
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2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 49