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Motorola General Business Information, SDV MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc. 2007

Switched Digital Video Solution

Motorola SDV SolutionFebruary 14, 2008

Scott Ghiz

Principal Staff Applications Engineer

Switched Digital Video

Motorola Home & Networks Mobility

[email protected]

+1.215.208.2677


Agenda

I. What is driving Switched Digital Video [SDV]?

II. What is SDV?

III. Where does SDV fit into an operational cable plant?

IV. How does the SDV system interact?

V. Motorola SDV component specifications

VI. SDV impact on other cable plant components

VII. SDV System ConfigurationI. Automated

II. Manual

VIII. SDV System Monitoring

IX. SDV System Reporting


Why is Switched Digital Video needed?

MSO’s need more bandwidth– more HD Services– more Digital Simulcast– simulcasting new codecs [MPEG-4/AVC]– more International & Special Interest Content– more On Demand content– increased high speed data [internet / VoIP] via DOCSIS

3.0 channel bonding

Since bandwidth is limited, better management of network resources is required.


Options for Reclaiming Bandwidth

Expand Bandwidth• Plant Build-out (750 MHz 860 MHz, 1000 MHz)• Fiber to the Premise/Home (FTTx)

Better Use of Existing Bandwidth• Statistical Multiplexing• All-Digital Networks• Advanced Codecs (MPEG-4/AVC)

• Switched Digital Video (SDV)


What is Switched Digital Video (SDV)

SDV is the dynamic switching of digital services on and off the physical cable plant based on subscriber usage– Certain services are designated by an MSO as “switched

services”– A switched service is only placed onto the cable plant

(“switched on”) if at least one STB tuner is tuned to that service in a specific, MSO defined service group.

– SDV makes more efficient use of bandwidth on the physical cable plant


Broadcast ServicesFor broadcast services, all services go to all homes all the

time, regardless of whether anyone is watching those services.

Switch

QAMs

QAMs

QAMs

P=1 P=2 P=3 P=4 P=8P=7P=6P=6P=5 P=10P=9

P=1 P=2 P=3 P=4 P=8P=7P=6P=6P=5 P=10P=9

P=1 P=2 P=3 P=4 P=8P=7P=6P=6P=5 P=10P=9


Switched Digital Video [SDV]

For switched services, only the services being watched in a particular service group are transmitted.

Switch

QAMs

QAMs

QAMs

P=1 P=2 P=3

P=1 P=2

P=2 P=3 P=5


Customer Viewing PatternsS

UB

SC

RIB

ER

S V

IEW

ING

P

RO

GR

AM

SMost

Viewed

LeastViewed

80/20 Rule - 80% of subscribers are watching 20% of content [based on the 80/20 rule of marketing & economics]

Infrequently watched “niche” services (in gray) are good candidates to become “switched services”


SDV Bandwidth Utilization Improvements

Niche programs switched at service group level instead of broadcast to all subscribers

Unwatched digital tier programs will no longer waste valuable bandwidth

Programs

Su

bsc

ribe

rs V

iew

ing

Most Watched Programs

Program Switching

Broadcast


SDV End-to-End Connectivity Diagram


Headend Signal Flow Diagram w/SDV

NC

QPSK L-band950 – 2150 MHz-25 to -65 dBm

24 or 36 MHz BW

DSRASI

Stat. Mux. SEMGigE

or ASI

DAC

RADD

OM

RPD

KLS

Port ServerBilling

System

HFC Network STB

Analog: 0 to +15 dBmVDigital: -10 to +5 dBmVReturn: 24 to 60 dBmV

Serial

64/256 QAM91 - 861 MHz45 – 58 dBmV

6 MHz BW26.97 Mbps (64 QAM)

38.81 Mbps (256 QAM)

QPSK71 - 129 MHz30 - 50 dBmV1.5 MHz BW2.048 Mbps

QPSK8 - 12 MHz0 ± 3 dBmV130 kHz BW

256 kbps

EPG Server

RF / Coax

Ethernet (App. Net.)

Ethernet (GigE)

Downstream device

Upstream device

Controller / Server

Legends:

ASI

Serial

SDM

5457/udp

6157/udp

5657/udp

58xxx/udp

5861/udp

Application / VOD Server

SEMGigE

Analog System

→ GigE multicast SPTSGigE

multicast SPTS

SVM(redundant)

DSR 4400MDASI

MPTS

EQAM (SEM)

GigEmulticast SPTS

ERM(redundant)

SVOM

GigE switchNE

Ethernet (OAM&P)

8857/udp

←IGMP join

Rate Clamp (BNP)

In-band mini carousel data (TWC SDV)


STB Auto-Discovery Process

Prior to SDV auto discovery, STB signs onto the Motorola

interactive network as usual.

0a. SVM [or guide server] streams configuration information out-of-band using data PID

1. STB is powered on.

0b. Edge QAM devices stream TSIDs on each of their SDV QAMs

2. STB looks for data PID and gets configuration information

including list of SDV frequencies.

3. STB scans SDV frequencies and finds TSIDs that it happens to see.

4. STB responds to SVM with TSID list.

5. SVM identifies STB’s Service Group

6. SVM reports Service Group back to STB [ACK].

STB is signed onto the SDV network


0. Source content streams (and is encrypted) through the GigE switches as multicast SPTSs

2a. Note: If the channel is already in the mini carousel the SDV client [STB] can tune to it prior to receiving a message back from the SVM

Subscriber Surfs to a Switched Channel (A25.2-X)

2. Client sends channel change

message indicating desired channel and

its TSID group

1. Subscriber selects a switched

channel

6. Edge Device joins the multicast stream and sends it out the specified QAM using

the selected program number

7. SVM returns frequency and program

number to the STB IP

3. SVM determines source details for the

requested channel4. SVM requests QAM resources for

the selected channel from ERM based on TSID group

5. ERM directs Edge Device to join a

multicast stream and bind it to a

frequency [QAM], assigning a program number determined

by the ERM

9. SVM updates channel list on out-of-band mini carousel

and ‘locks’ the selected channel after a MSO defined

time interval

10. Every five minutes the SVOM gets raw customer behavior data from the SVM and QAM

usage from the ERM for processing into user friendly reports.

8. Settop tunes to frequency and program.

Subscriber is now watching the selected program.


How long does all of that cable plant activity take?

150ms


System Specs -- Motorola SDV Controllers3 Components of the Motorola SDV Solution:

• Switched Video Manager (SVM1000 / SVM2000)– Manages Set Top Box interactions

• Edge Resource Manager (ERM1000)– Manages Edge QAM devices

• Switched Video Operations Manager (SVOM1000)– Manages/configures/monitors SVMs and ERMs– Provides detailed customer interaction reports

Commonalities:

– Distributed architecture [three components]– High availability*– Linux OS– Web-based UIs


Switched Video Managers

• SVM1000• Licensed for 25,000

tuners & 250 CC/sec

• SVM2000• Licensed for 55,000

tuners & 550 CC/sec

Both units are full redundant, support in-band & out-of-band carousels, and provide GUI system monitoring and reporting.


Edge Resource ManagerERM1000

• Fully Redundant• ERM1000 is licensed for 5,000 QAMs• ERM1000 can support up to 50,000 streams• Third Party QAM support [Arris/Harmonic/…]• Supports QAM Sharing between VOD and SDV


SVOM1000

• Manages Multiple SVMs and ERMs• Supports up to 1 million tuners

• Channel Configuration Setup [MSO provided]– Source ID / Bandwidth / Encoding Type / User (Virtual) Channel /

Multicast SPTS socket / Source IP

• SVM and ERM Configuration Setup– SVM / ERM / QAM / Service Group Relationships & Mappings

• System Status Monitoring [ red light / green light ]– SVM status / ERM Status / QAM Status

• Collect & Report Usage Statistics [ red light / green light ]– Channel Usage Pareto / SG BW / STB Usage / Channel Change Rates

/ Failures & Warnings


SDV System Configurations

• Depending on site topology, SVOMs and ERMs are usually outnumbered by SVMs.

In an operational environment, redundant

SVMs and ERMs are recommended and a hot or cold standby SVOM

is recommended

SVOM1000


SDV Impact on Other Cable Plant Components

• Because SDV requires two-way communication between the STB and SVM every time a switched channel is requested by a single tuner, other parts of the Aloha Network within the cable plant are effected.

• OM1000/2000, RPD2000/ARPD, and NC1500 units are all impacted with additional SDV driven traffic.

• The additional loading will probably lead to OM splits, NC splits, and adding of DM cards or upgrading to ARPDs.


Configuring SVOM / SVM / ERM

SVOM1000


Redundancy / IP addressingThere are 4 networks:

1. Application2. OAM&P3. Streaming (GigE)4. Redundancy (device-to-device connections)

Example IP configuration:

DevicePhysical

ConnectionSW Port

Application network IP

Application Virtual IP

OAM&P network

Streaming

network IP[in-band mini-

carousel]

Redundancy

network IP

SVOM001 NIC1 eth0 165.223.31.125 110.8.201.77

SVM001 NIC1 eth0 165.223.31.130 165.223.31.132

NIC2 eth1 110.8.201.80

NIC3 eth2 10.100.100.24

NIC4 eth3 10.1.1.1

SVM002 NIC1 eth0 165.223.31.131 165.223.31.132

NIC2 eth1 110.8.201.81

NIC3 eth2 10.100.100.25

NIC4 eth3 10.1.1.2

ERM001 NIC1 eth0 165.223.31.133 165.223.31.135

NIC4 eth3 10.1.1.5

ERM002 NIC1 eth0 165.223.31.134 165.223.31.135

NIC4 eth3 10.1.1.6

For NTP Time Server Synchronization7 IP

Addresses!


Configuration via the SVOM

• Automated Configuration Import

• Manual On-Line Editing / On-Line Update


SDV Configuration Data Sheet

Build configuration in MS Excel. All

columns with red font are required fields.

Save each of the four worksheets

•headend devices

•edge devices

•service groups

•channel maps

as .csv files.


Configuration File Import


Why Automate the Configuration Process?

258 Channels


Manual On-Line Configuration -- SVOM / SVM / ERM


User Interface Access• Web UI access:

– SVOM: https://<IP of SVOM>:8090– SVM: https://<IP of SVM>:8089– ERM: https://<IP of ERM>:80XX


SVOM – Channel Configuration


SVOM – Channel Configuration / Edit / Add


SVOM – SDV Service State by Channel Map

•Allows a channel to be placed in-to-service or out-of-service

•A channel placed out-of-service allows current viewers to continue viewing the channel, uninterrupted, but does not allow new viewers to join the switched stream

•Multiple service groups with different channel maps may contain different service states for the same SDV channel

SVOM


SVM Manual Configuration / SDV Channel Configuration / Locked Channels

For troubleshooting and test purposes and to ensure uninterrupted service in

advance of an anticipated channel change storm.


SVOM – Edge Device Configuration

Manual configuration of edge devices.


SVOM – Edge Device / QAM Management


SVOM – Edge Device / SG Management

Manual configuration of edge device service

groups.


SDV System Monitoring


SVOM -- System Monitoring

Problem!No Problem


SDV Monitoring from SVOM – Event Log Viewer


SVOM – Settop Diagnostics Page•SVOM adds a settop diagnostics page allowing the display of the status of a particular settop box. Dual tuner example.


SDV Monitoring from SVOM – Settop Errors Viewer


SVM – SDV System Monitoring


SVM -- Service Group Utilization


SVM -- Real-Time Channel Matrix


SDV Monitoring from ERM – Operational Stats


SVM Debugging / SDV Channel Configuration / Locked Channels

If field engineers need to isolate a SDV QAM in a debugging situation: (1) Lock

the channel in question then (2) determine which SDV QAM is in use

next slide.


QAM Monitoring from SVM


SDV System Reporting


SDV System Reports

SVOM maintains 400 GB database [RAID 5, striping on 4 Disks] optimized for reporting

Channel Reports: • Channel Usage Pareto -- individual and total channel usage for

selected Service Groups

Resource Reports: • Multiple views of BW usage for selected Service Groups• Errors by type for selected Service Groups or entire system

System Activity Reports: • Active tuners and channel changes for selected SG’s


SDV Reporting -- Channel Changes


High Use Service Groups


SDV Reporting -- Channel Usage Pareto


END

Introduction to Motorola’s SDV Solution

February 14, 2008

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