Isa&ngod architecture

1. Application Clietn
ApplicationCatalogs
LSCP
APP Server
Application
Service
Offering
CMS
VOD System
Content
StreamSvc
Customer Assert
Terminal Package
Purchase MediaData
SessionGW
SessionGW
COBAR NameService
COBAR Event Notification
Billing
System
SRM
BOSS
SSPSSP
ISA 架构

2. Navigation
Server
Purchase
Server
Session
Manager
Data
Warehouse
Logging
Server
Billing System
Entitlement
Server
Assert Management
System
Assert Distribution
System
On Demand
ClientEdge
Resource
Manager
Edge
Device
On Demand
Resource
Manager
Streaming
Server
Assert
Propagation
Manager
Network
Resource
Manager
Transport
Network
Encryption
Resource
Manager
Encrytion
Engine
CA
System
Network
Management
System
Real Time
Manager
Real Time
Resource
O1
N
L
W
A7
A2
A1
E1
A6
A4
R3
R1
V1
R6R5R4
V4V3V2
S5S4
S3
S2
S1
E2
S6
NGOD 架构

4. •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

5. Protocol: Specifies Communication Between:
S6(Session Management) (NGOD) Session Manager and Edge Resource
Manager
D6(Discovery) (NGOD) Edge Resource Manager and Edge
Modulator
•Edge Modulator and Session Manager
R6 (Resource Management—
RTSPprotocol) (NGOD)
Edge Resource Manager and Edge
Modulator
N(Logging/SNMP) (NGOD) nABLE Management Console and external
logging application
MCP(Mini-Carousel Protocol) (NGOD) Between SM and SDV clients
CCP (Channel Change Protocol) (NGOD) Between SM and SDV clients
NGOD SDV Protocols

6. Protocol: Specifies Communication Between:
S6(Session Management) (NGOD) Session Manager and Edge Resource
Manager
D6(Discovery) (NGOD) Edge Resource Manager and Edge
Modulator
•Edge Modulator and Session Manager
R6 (Resource Management—
RTSPprotocol) (NGOD)
Edge Resource Manager and Edge
Modulator
N(Logging/SNMP) (NGOD) nABLE Management Console and external
logging application
MCP(Mini-Carousel Protocol) (NGOD) Between SM and SDV clients
CCP (Channel Change Protocol) (NGOD) Between SM and SDV clients
NGOD SDV Protocols