VCS VIP 1000 Guide de l'utilisateur télécharger pdf (Page 64)

Configuring the Sender Chapter 6

64 VIP 1000

Multicasting

In addition to a 1:1 connection between an encoder and a single receiver

(unicast), the VIP can enable multiple receivers to receive the video signal from

an encoder simultaneously. This is achieved either by duplicating the data stream

in the unit with subsequent distribution to multiple receivers (multi-unicast) or by

distribution of a single data stream over the network to a number of receivers in

a defined group (multicast). A dedicated multicast address and port can be

specified for each of the three data streams.

Note

The prerequisite for multicast operation is a multicast-capable network

using the UDP and IGMP protocols. Other group membership protocols are

not supported. The TCP protocol does not support multicast connections.

A special IP address (class D address) must be configured for multicast operation

in a multicast-enabled network.

The network must support group IP addresses and the Internet Group

Management Protocol (IGMP V2). The address range is from 224.0.1.0 to

239.255.255.255.

The multicast address can be the same for multiple data streams. Then however

it is necessary to use a different port in each case so that multiple data streams

are not sent simultaneously over the same port and multicast address.

Note

You must set the parameters for each data stream individually.

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VCS VIP 1000 Guide de l'utilisateur Page 64