Barix Adds Multicast Routing

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Barix Adds Multicast Routing

Jun 12, 2013 1:55 PM

Zurich, Switzerland - Jun 10, 2013 - Barix introduced a method for multi-site network users to route multicast traffic over remote network links, enabling bandwidth-efficient, multicast delivery over the public Internet. Multicast uses special destination addresses to target groups of subscribed devices, and deliver data and streams.

In contrast to standard connections where each device needs its own stream, multicast data distribution requires only a single stream to send the same content to any number of receivers on the same network segment, minimizing bandwidth and network usage. Multicast delivery is traditionally limited to private, in-house networks because Internet service providers block multicast traffic on normal Internet connections.

Barix has developed a multicast routing and tunneling firmware that turns its Barionet IP control devices into multisite multicast routers; effectively enabling delivery of multicast traffic over the public internet to remote locations. The system forwards multicast IP blocks to remote receiving devices, re-packed as unicast streams. The receiving devices then re-issue the packets as multicast on the destination network.

Using Multicast, system integrators can configure Barix IP Audio systems with more flexibility and less labor as streams are concurrently distributed to many nodes using IP multicast delivery. This minimizes streaming bandwidth requirements and simplifies configuration; it is not necessary to know the IP address of each individual receiver on the network. Instead, subscription protocols are employed so that relevant receivers - such as a Barix Exstreamer IP audio decoder - receive relevant streams, even if they use dynamic, unknown IP addresses.

The Barix multicast routing and tunneling method can be deployed across a large number of scenarios as functionality is independent of actual protocols. This enables the firmware to be used alongside automation, IP audio, video, VoIP, SIP or RTP streams, for example. Furthermore, the entire operation can be monitored via SNMP.

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