epiphan DVI Broadcaster DL, User Manual

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Streaming
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DVI Broadcaster DL User Guide
8.2.3
Setting up Multicast from Publish Stream
A multicast RTP stream provides a one-to-many broadcasting framework. In a
multicast RTP configuration, the DVI Broadcaster DL sends a packet only once to a
router that supports multicasting. This router then distributes the packets to all
intended viewer nodes using a multi-cast protocol.
A multicast address is associated with a group of interested receivers. In IPv4,
addresses 224.0.0.0 through 239.255.255.255 (the former Class D addresses) are
designated as multicast addresses.
Sending multicast streams requires equipment that supports multi-casting,
configuring your network and enabling specific multicasting features on the DVI
Broadcaster DL. Multicast architectures are used predominantly within a high
bandwidth corporate LAN and not on Internet based architectures. Multicast RTP
streaming is not usually propagated outside the LAN though it may be propagated
through VPNs connecting several LANs. Multicast transmission is available during
RTP streaming.
RTP/UDP Push streaming allows you to direct video to a server or client and
generates an SDP file containing the stream description. SDP files can be stored on a
streaming server, or opened by video players.
To use this option:
1.
Select Publish Stream from the main menu.
2.
Select RTP/UDP Push from the drop-down list.
3.
Enter a destination multicast IP address. At this target point the broadcast
will be viewed.
4.
Specify the numbers of the video and audio ports where the broadcast will
be received.
5.
Click Apply .
6.
An SDP file is now generated. It is available in the Info section of the Web
Admin interface. You can either save an SDP file on your local machine or
provide the link to SDP file to your audience.