08deploying d30 ckn final5 18

7/25/2019 08deploying d30 Ckn Final5 18

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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


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


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


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


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



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M-CMTS enables flexible, cost effective D3.0 coverage

Common 2010 de lo ment confi uration

10K serving 35SG


7+1 5x20

3 DS SPAs 2 10ks connect to 1 RFGW10 with 3+1 DS48


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DOCSIS 3.0 Linecards



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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



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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


- 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


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





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.Deployment Considerations

Jeff Forhan Network Consulting Engineer Cable Access BU



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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



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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


- -


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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


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


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]



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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.

- -


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



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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



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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.



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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


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



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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?



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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?



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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



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Advanced Services

Adeel Ahmed Manager, Advanced Services US SP Cable Infrastructure



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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


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


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



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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


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



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MC2020V and MC88V provide direct path for 4x4



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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



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Option for recombining the upstream in split return

DS-SPA modulardownstreams can be used

with MC2020V



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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


609, 615, 621, 627 MHz


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-

3 US freqs

4, 5x5 MAC domains with ATDMA & TDMA US

2-ch US bonding


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


Legacy 2-ch US load balance


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.Scalability and CostEfficiency



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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


0%

20%Co

IPv6 MC520


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DTCC

MC520PLINK

SPAStarting in 2007, Ciscoprovided 45% lower

120%


.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


. 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


.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%


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


.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


AS, SEs, BU/BNE, SPSU


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08deploying d30 ckn final5 18

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