Specifications

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Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide
OL-13493-04
Chapter 1 Product Overview
Overview
The Service Engine can function as a Content Acquirer and Internet Streamer, or just as an Internet
Streamer.
Figure 1-1 shows the major elements of a CDS network. How content flows, from ingest to distribution
within the CDS, to delivery to client devices, is dictated by the content delivery services defined for each
Content Origin. A delivery service is a configuration defined by using the CDSM and consists of
configuration parameters that dictate how content is ingested and distributed, and what content is
delivered to the client devices. Some of the primary delivery service definition parameters are:
• Origin server
• Service routing domain name
• Service Engines participating in the delivery service
• Service Engine designated as the Content Acquirer
The Content Acquirer is only active on one Service Engine in each delivery service.
Figure 1-1 High-Level View of the Cisco CDS
The following sections briefly describe the elements of the CDS. For more detailed information, see the
“Content Delivery System Architecture” section on page 1-7.
Service Engine
Content Acquirer
Service Engine
Internet Streamer
CDSM
Origin
servers
Content
provider
content
metadata
metadata
content
DNS
servers
Asset
Management
System
GigE GigE GigE
GigE
GigE
GigE
GigE
GigE
GigE
GigE
management
management
Policy Servers
(QoS and
conditional
access)
Service Router
Service Engine
Internet Streamer
Service Engine
Internet Streamer
Switched
network
Switched
network
Access point
Modem
HFC
RF
CMTS
CMTS
RF
RF
CMTS
Access point
Access point
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