Specifications

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Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide

OL-13493-04

Chapter 5 Configuring Services

Configuring Programs

A program in the CDS is defined as a scheduled live or rebroadcast event that streams content to client

devices. The CDS streams live or rebroadcast content by using the Movie Streamer or the Windows

Media Engine. For more information, see the “Programs” section on page 2-9.

To view existing programs, see the “Viewing Programs” section on page 5-39.

Flash Media Streaming uses Real Time Media Protocol (RTMP) to stream live content by means of

dynamic proxy. Configuration of live or rebroadcast programs is not required. When the first client

requests live streaming content, the stream is created. For more information, see the “Live Streaming”

section on page 1-18.

Caution If you have configured delivery services for live programs, make sure there are no external proxy servers

physically located between your receiver SEs and your Content Acquirer that require proxy

authentication. Also, make sure that proxy authentication is not enabled on any receiver SEs that might

be in the logical, hierarchical path between the Content Acquirer and the receiver SE that is going to

serve the live stream to the requesting clients. If a live stream encounters any device that requires proxy

authentication, the stream will be dropped before it reaches its destination.

Note All SEs in a Windows Media live delivery service must have Real Time Streaming Protocol with TCP

(RTSPT) enabled, because SEs must use the RTSPT protocol to communicate with each other. RTSPT

is enabled by default.

Tip For information about testing a live or rebroadcast program, see Appendix G, “Testing the Internet

Streamer CDS.”

Note The following rules apply to live splitting for Movie Streamer:

1. For unicast streaming, the client request must be sent by means of RTSP.

2. For multicast streaming, the client request must be sent by means of HTTP.

Multicast Live Stream Interruptions

During a Windows Media live broadcast, any interruption of the live stream that lasts five minutes or

longer causes the multicast broadcast to cease for the duration of the currently scheduled period. If the

live stream is interrupted for less than five minutes, the broadcast resumes.

Live stream interruptions can be caused by unexpected encoder failures or by an operational restart. If

the live stream stops for more than five minutes and resumes later while the program is still scheduled,

you can modify the schedule or any other attribute of the program (such as the description) to trigger a

restart of the multicast broadcast. Restarting might take up to five minutes under these circumstances.

This does not apply to unicast delivery of a Windows Media live event or to Movie Streamer live

programs.