Specifications

2-10
Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide
OL-13493-04
Chapter 2 Network Design
Programs
Rebroadcasts
In a scheduled rebroadcast, prefetched content is scheduled to be streamed from the Service Engines
using multicast. Content can only be selected from one delivery service. The Service Engines and device
groups assigned to the delivery service are automatically selected when the content files are chosen for
the program.
API Program File
Programs can be defined through the Internet Streaming CDSM or through an API. Programs created
through APIs are based on a program file. A program file is an XML file that resides on an external server
and contains the elements that define the schedule, content, and presentation parameters. The Internet
Streaming CDSM gets the program file, parses it, and saves the program file to the database. The
program is automatically updated at intervals by refetching the program file and reparsing it. RTSP is
the only protocol supported in the program file.
Programs created using an API can be viewed in the Internet Streaming CDSM as read-only, and
modifications to the API programs can be accomplished through the API. The API program can also be
edited using the Internet Streaming CDSM; however, the information about the API program file is
deleted and the program can no longer be modified through the API. A third option is to copy the API
program using the Copy Program feature.