Specifications

1-4
Cisco Internet Streamer CDS 2.0-2.3 Software Configuration Guide
OL-13493-04
Chapter 1 Product Overview
Overview
that is cached on the Service Engines by using this method is subject to the same deletion rules as the
dynamic ingest method. The metadata that is propagated can be used to specify explicit controls and
policies for streaming the content.
Live Stream Ingest and Split
The live stream ingest method distributes a live content feed to all the Service Engines participating in
the content delivery service and helps to scale the content delivery to a very large audience. This method
leverages the live stream splitting capabilities of the Internet Streamer application and optimizes the
access by doing a one-to-many split to all Service Engines in the content delivery service. The Internet
Streaming CDSM provides the necessary interface to schedule the streaming of live programs. Advanced
techniques are used to enhance the performance of live streaming.
Delivery
The Service Router handles client requests for content and determines the best Service Engine to deliver
it based on proximity, load and health states.
Once the best Service Engine has been determined, the content is delivered to the client device by means
of one of the following mechanisms:
• Static Content Download using HTTP—Content is downloaded by the client device before it can
be rendered to the user.
• Progressive Content Download using HTTP—Content is rendered in segments to the user before
it has been fully downloaded.
• Content Streaming using HTTP, RTMP, RTSP, or RTP—Content is streamed to the client device,
Service Engines collect feedback and can fine-tune streaming. Advanced error recovery can also be
performed. This is a very common method of streaming video content to client devices.
Table 1-2 lists the content types and formats, content transport protocols, and client types supported by
the CDS.
Table 1-2 Supported Content Types
Content Types and
Formats
Transport
Protocols Typical Client Types
Access
Network Type
Windows Media
(WMA, WMV, ASF,
and others) VC-1
RTP,
RTSP,
HTTP
Windows Media Player 9, 10, 11 on PC
Windows Media Player 9 for Mac
Windows Media Player 9 on PDA running
Windows Pocket PC 2002/2003
Windows Media Player 10 on PDA running
Windows Mobile 5
Windows Media Technology (WMT) Silverlight
Wired
Wi-Fi
Cellular
QuickTime (MOV),
hinted (3GP) files
RTP,
RTSP,
HTTP
On PC: QuickTime Player, QuickTime Pro 6 or 7,
RealPlayer 10 or 11 (3GP only), VLC player
On Mac: QuickTime Player, QuickTime Pro 6 or
7, RealPlayer 10 for Mac OS X (3GP only),
On Mobile: RealPlayer on Nokia N series phones
(3GP only), PackerVideo player
Wired
Wi-Fi
Cellular