Bosch Appliances VOT-320 manual Advanced Mode Multicast, Enable, Multicast Address

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5.36 Advanced Mode: Multicast

In addition to a 1:1 connection between an encoder and a single receiver (unicast), the VOT-320 can enable multiple receivers to receive the video signal from an encoder simultaneously. The device either duplicates the data stream itself and then distributes it to multiple receivers (Multi-unicast) or it sends a single data stream to the network, where the data stream is simultaneously distributed to multiple receivers in a defined group (Multicast). You can enter a dedicated multicast address and port for each stream. You can switch between the streams by clicking the appropriate tabs.

NOTICE!

Multicast operation requires a multicast-enabled network that uses the UDP and the Internet Group Management IGMP protocols. Other group management 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 225.0.0.0 to 239.255.255.255.

The multicast address can be the same for multiple streams. However, it will be necessary to use a different port in each case so that multiple data streams are not sent simultaneously using the same port and multicast address.

NOTICE!

The settings must be made individually for each stream.

Enable

To enable simultaneous data reception on several receivers you need to activate the multicast function. To do this, check the box. You can then enter the multicast address.

Multicast Address

Enter a valid multicast address for each stream to be operated in multicast mode (duplication of the data streams in the network).

With the setting 0.0.0.0 the encoder for the relevant stream operates in multi-unicast mode (copying of data streams in the camera). The VOT-320 supports multi-unicast connections for up to five simultaneously connected receivers.

Bosch Sicherheitssysteme GmbH Installation and Operating Manual DOC V4.5 2010.09