Arris (C-COR) Switched Digital Video (SDV) Training. SDV System Architecture

Transcription

1 Arris (C-COR) Switched Digital Video (SDV) Training SDV System Architecture 1

2 Introductions Cliff Aaby Principle System Architect, On Demand Arris Group

3 Course Contents: General System Architecture Basic SDV Architecture Failover Configuration Communication Protocols MCP CCP Mechanics of Communication Event Flows 3

4 Motorola STB Requirements EPG A25.x (version number of the STB) Requires an IP address (Interactive) Must be a responder (two-way IP communication with SM) Must be assigned a channel map with mini-car service defined Mini-car is the carousel and is sent by the Session Manger The Mini-car reference is hard-coded into the IPG 4

5 Detailed SDV System Architecture Satellite receivers DSR DSR DSR MPEG Formats ASI DHEI 100BT Video Plane Signal Aggregator GigE UPD/IP Digital Multiplexer (program clamping) Stage 1 Encryption Device Stage 2 Broadcast programs Stage 3 GigE Switch Edge Modulator Combiner IGMP v2 or later Switched programs IP Communications Video Interactive and carousel communications 5

6 Detailed SDV System Architecture Satellite receivers DSR DSR DSR MPEG Formats ASI DHEI 100BT Video Plane Signal Aggregator GigE UPD/IP Digital Multiplexer (program clamping) Stage 1 Encryption Device Stage 2 Broadcast programs Stage 3 GigE Switch Edge Modulator Combiner IGMP v2 or later Switched programs SDV Clients (Service Group 1) STB STB IP Communications Video Interactive and carousel communications STB STB 6

7 Detailed SDV System Architecture Satellite receivers DSR DSR DSR MPEG Formats ASI DHEI 100BT Video Plane Signal Aggregator GigE UPD/IP Digital Multiplexer (program clamping) Stage 1 Control Plane Bandwidth allocation, event and status logging SRM & ERM Management Console Monitoring, reporting, some configuration Application Switch GigE Switch Encryption Device Broadcast programs Edge Modulator IGMP v2 or later Switched programs Combiner Stage 2 Stage 3 Headend Components RPD SDV Clients (Service Group 1) STB NC1500 STB IP Communications Video Interactive and carousel communications OM1000 STB STB 7

8 Acronyms Explained NGOD: Comcast speak for Next Generation On Demand ERM: Edge Resource Manager SDV-SM: Session Manager MC: Management Console RPD: Reverse Path Demod OM: Forward Path Modulator NC1500: Network Gateway between Applications Net and Headend Net SEM: Smartstream Edge Mod (Motorola encryption) TSID: Transport Stream ID 8

9 NGOD SDV Protocols Protocol: S6 (Session Management) (NGOD) D6 (Discovery) (NGOD) R6 (Resource Management RTSP protocol) (NGOD) N (Logging/SNMP) (NGOD) MCP (Mini-Carousel Protocol) (NGOD) CCP (Channel Change Protocol) (NGOD) Specifies Communication Between: Session Manager and Edge Resource Manager Edge Resource Manager and Edge Modulator Edge Modulator and Session Manager Edge Resource Manager and Edge Modulator nable Management Console and external logging application Between SM and SDV clients Between SM and SDV clients 9

10 How SDV and Broadcast Switch Channels Source Name Virtual Channel Number (VCN) Broadcast Source ID Frequency (EIA No.) Program Number Slapstick History WTU A&E Source Name Virtual Channel Number (VCN) SDV Source ID Frequency (EIA No.) Program Number Slapstick History WTU A&E In SDV environments EIA frequencies are allocated to channels dynamically and thus the Slapstick channel may be streamed to service group 1 over one EIA and at another time a different EIA Broadcast environments assign static frequencies and program numbers 10

11 Creating/Configuring Mini-car Background Service Start On each OM1000 to be used, open port no OM 1000 (Forward Path Out-Of- Band Modulator) Input socket: :

12 Creating/Configuring Mini-car Background Service Create a background service named mini_car. DAC (Digital Access Controller) Assign mini_car service to each OM1000 to be used. This generates a Program ID (PID) for each OM1000. Start On each OM1000 to be used, open port no OM 1000 (Forward Path Out-Of- Band Modulator) Input socket: :

13 Creating/Configuring Mini-car Background Service Create a background service named mini_car. DAC (Digital Access Controller) Assign mini_car service to each OM1000 to be used. This generates a Program ID (PID) for each OM1000. MC (Management Console) On MC, configure SDV-SM to stream mini-carousel to OM1000 s. For each OM1000 to be used, specify: IP address of the OM1000 input. Input port no PID generated in step 3. TTL value of 1. mini_car service SDV-SM (Session Manager) Start On each OM1000 to be used, open port no OM 1000 (Forward Path Out-Of- Band Modulator) Input socket: :8857 Mini-carousel streams to each OM1000 for which SDV-SM was configured in step 4. 13

14 Creating/Configuring Mini-car Background Service Create a background service named mini_car. DAC (Digital Access Controller) Assign mini_car service to each OM1000 to be used. This generates a Program ID (PID) for each OM1000. MC (Management Console) On MC, configure SDV-SM to stream mini-carousel to OM1000 s. For each OM1000 to be used, specify: IP address of the OM1000 input. Input port no PID generated in step 3. TTL value of 1. mini_car service SDV-SM (Session Manager) Start On each OM1000 to be used, open port no OM 1000 (Forward Path Out-Of- Band Modulator) Input socket: :8857 Mini-carousel streams to each OM1000 for which SDV-SM was configured in step 4. SDV Client is preprogrammed to look for a service named mini_car. mini_car service Mini-carousel streams to service group(s) SDV Clients Service Group 1 STB End STB STB 14

15 SDV Error Conditions The Right thing happens The Wrong thing happens The Right thing that looks like the Wrong thing 15

16 SDV Error Codes 16

17 Tera Term Open source software terminal emulator Emulates multiple types of terminals Supports telnet, SSH 1 & 2, and serial port connections Built in scripting language A25.2.x The latest generation of iguide Contains embedded SDV Client Software Serial port debug supported on ASTB only 17

18 ASTB (only) Set-up Select Menu and Go to Setup Select Cable Box and Select Configuration Press FAV key seven times This brings you to a table, arrow down to last row, SDB, right arrow to All and hit Select. This turns on debug output via the serial port. MCard ASTB Laptop Serial Cable from ASTB to laptop 18

19 STB Events Auto Discovery (Determines the service group and region to which subscriber belongs) Channel Change requests for both broadcast and switched video programming Mini-car carries active map message so SDV client can determine if switched program exists in service group or not Forced tune events occur when service group is out of bandwidth Forced tune events occur when client inactivity exceeds limits ALL user activity is monitored and reported NOTE: Forced tune is not an EAS event ( force tune ) 19

20 Auto Discovery Animated Flow Diagram 20

21 Auto Discovery Viewer Set-top Box QAM Om1000 Forward Path Modulator Session & Resource Manager Turn on AC Power (Plug in STB) configuration message SDBConfiguration configuration message (part of mini-carousel) 21

22 Auto Discovery Viewer Set-top Box QAM Om1000 Forward Path Modulator Session & Resource Manager SDBConfiguration Turn on AC Power (Plug in STB) TSIDs Read Configuration Message configuration message configuration message (part of mini-carousel) 22

23 Auto Discovery Viewer Set-top Box QAM Om1000 Forward Path Modulator Session & Resource Manager SDBConfiguration Turn on AC Power (Plug in STB) TSIDs Read Configuration Message configuration message configuration message (part of mini-carousel) Scan QAM frequencies For TSIDS SDBAutoDiscoveryRequest Sends TSIDs Map TSIDs TSI Group ID/Service Group 23

24 Auto Discovery Viewer Set-top Box QAM Om1000 Forward Path Modulator Session & Resource Manager SDBConfiguration Turn on AC Power (Plug in STB) TSIDs Read Configuration Message configuration message configuration message (part of mini-carousel) Scan QAM frequencies For TSIDS SDBAutoDiscoveryRequest Sends TSIDs Map TSIDs TSI Group ID/Service Group SDBAutoDiscoveryConfirm SDBInitRequest (optional) SDBInitConfirm 24

25 Auto Discovery Viewer Set-top Box QAM Om1000 Forward Path Modulator Session & Resource Manager SDBConfiguration Turn on AC Power (Plug in STB) TSIDs Read Configuration Message configuration message configuration message (part of mini-carousel) Scan QAM frequencies For TSIDS SDBAutoDiscoveryRequest Sends TSIDs Map TSIDs TSI Group ID/Service Group SDBAutoDiscoveryConfirm SDBInitRequest (optional) SDBInitConfirm 25

26 Channel Change with Active Channel in Carousel Animated Flow Diagram 26

27 Channel Change with Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Modulator Management Console Change Channel active channel list Check whether request is for a switched channel active channel list (part of mini-carousel) Video (QAM already streaming) SDBProgramSelectRequest message Configurable update interval 27

28 Channel Change with Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Modulator Management Console Change Channel active channel list Check whether request is for a switched channel active channel list (part of mini-carousel) Video (QAM already streaming) Video on requested channel displays SDBProgramSelectRequest message If request is for a switched channel, read active channels If requested channel is active, tune to it SDBProgramSelectConfirm message Update date, e.g. list of STBs tuned to requested channel Configurable update interval Update Management Console with current data 28

29 Channel Change with Non-Active Channel in Carousel Animated Flow Diagram 29

30 Channel Change with Non-Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Resource Manager Edge Device GigE Switch Change Channel active channel list Check whether request is for a switched channel active channel list (part of mini-carousel) Send Setup info to ERM 30

31 Channel Change with Non-Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Resource Manager Edge Device GigE Switch Change Channel active channel list Check whether request is for a switched channel active channel list (part of mini-carousel) Send Setup info to ERM If request is for switched channel, read active channels Requested channel is NOT active SDBProgramSelect Request (sends requested channel s source ID 31

32 Channel Change with Non-Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Resource Manager Edge Device GigE Switch Change Channel active channel list Check whether request is for a switched channel If request is for switched channel, read active channels Requested channel is NOT active active channel list SDBProgramSelect Request (sends requested channel s source ID (part of mini-carousel) Send Setup info to ERM If available bandwidth does NOT exist Send Un-bind request for non-watched channel Acknowledge Successful Leave IGMP Leave (leave requested program with this multicast IP address) Stop stream for requested channel 32

33 Channel Change with Non-Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Resource Manager Edge Device GigE Switch Change Channel active channel list Check whether request is for a switched channel If request is for switched channel, read active channels Requested channel is NOT active active channel list SDBProgramSelect Request (sends requested channel s source ID (part of mini-carousel) Send Setup info to ERM If available bandwidth does NOT exist Send Un-bind request for non-watched channel Acknowledge Successful Leave If available bandwidth exists Send Bind request IGMP Leave (leave requested program with this multicast IP address) Stop stream for requested channel IGMP Join (Join requested program with this multicast IP address) Stream video for requested channel 33

34 Channel Change with Non-Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Resource Manager Edge Device GigE Switch Change Channel active channel list Check whether request is for a switched channel If request is for switched channel, read active channels Requested channel is NOT active active channel list SDBProgramSelect Request (sends requested channel s source ID (part of mini-carousel) STBProgramSelectConfirm (sends frequency and program number to which to tune) Video displays Tune to requested channel Send Setup info to ERM If available bandwidth does NOT exist Send Un-bind request for non-watched channel Acknowledge Successful Leave If available bandwidth exists Send Bind request Stream video for requested channel Acknowledge successful Setup Update data Acknowledge successful Join IGMP Leave (leave requested program with this multicast IP address) Stop stream for requested channel IGMP Join (Join requested program with this multicast IP address) Stream video for requested channel Update Management Console with current data 34

35 Channel Change with Non-Active Channel in Carousel Viewer Set-top Box OM100 Forward Path Modulator Session Manager Edge Resource Manager Edge Device GigE Switch Change Channel active channel list Check whether request is for a switched channel If request is for switched channel, read active channels Requested channel is NOT active active channel list SDBProgramSelect Request (sends requested channel s source ID (part of mini-carousel) STBProgramSelectConfirm (sends frequency and program number to which to tune) Video displays Tune to requested channel Send Setup info to ERM If available bandwidth does NOT exist Send Un-bind request for non-watched channel Acknowledge Successful Leave If available bandwidth exists Send Bind request Stream video for requested channel Acknowledge successful Setup Update data Acknowledge successful Join IGMP Leave (leave requested program with this multicast IP address) Stop stream for requested channel IGMP Join (Join requested program with this multicast IP address) Stream video for requested channel Update Management Console with current data 35

36 User Activity Reports 36

37 Client Inactivity (No Response) Animated Flow Diagram 37

38 Client Inactivity (NO Response) Viewer Set-top Box OM100 Forward Path Modulator Session Manager Change Channel Display video SDV Tune 38

39 Client Inactivity (NO Response) Viewer Set-top Box OM100 Forward Path Modulator Session Manager Change Channel Display video Configurable refresh interval, typically 1 hour SDV Tune SDBUserActivityReport message Configurable timeout interval, Typically 12 hours SDBEventindication Display Press Any Key message Update 39

40 Client Inactivity (NO Response) Viewer Set-top Box OM100 Forward Path Modulator Session Manager Change Channel Display video Configurable refresh interval, typically 1 hour 60 second wait interval, assume no key is pressed SDV Tune SDBUserActivityReport message Configurable timeout interval, Typically 12 hours Display Press Any Key SDBEventResponse No viewer activity SDBEventindication Display Press Any Key message Update 40

41 Client Inactivity (NO Response) Viewer Set-top Box OM100 Forward Path Modulator Session Manager Change Channel Display video Configurable refresh interval, typically 1 hour 60 second wait interval, assume no key is pressed Display Safe channel SDV Tune SDBUserActivityReport message Configurable timeout interval, Typically 12 hours Display Press Any Key SDBEventResponse No viewer activity Tune to Safe channel SDBEventindication Display Press Any Key message SDBProgramSelectindication Tune to Safe channel Update Update SDBProgramSelectResponse 41

42 Client Inactivity (NO Response) Viewer Set-top Box OM100 Forward Path Modulator Session Manager Change Channel Display video Configurable refresh interval, typically 1 hour 60 second wait interval, assume no key is pressed Display Safe channel SDV Tune SDBUserActivityReport message Configurable timeout interval, Typically 12 hours Display Press Any Key SDBEventResponse No viewer activity Tune to Safe channel SDBEventindication Display Press Any Key message SDBProgramSelectindication Tune to Safe channel Update Update SDBProgramSelectResponse 42

43 Forced to Safe Channel 43

44 Check Viewer Presence (Confirmed) 44

45 User Activity Prompt 45

46 Session Manager Client Query When the SM Server and SDV Client have become out of sync 46

47 STB Power Off Subscriber Powering on and Off will not reset the STB configuration Removing the power plug from the power outlet WILL reset configuration and start the Auto Discovery process 47

48 Questions? Thanks! 48