Delivering and receiving multicast content across a unicast network

Delivering and receiving multicast content across a unicast network

Techniques for delivering and receiving multicast content across a unicast network are described. A system that supports delivery and reception of multicast content across a unicast network includes a first device and a second device. The first device may be a destination device or a multicast-enabl...

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Hauptverfasser: Shepherd, Gregory J, Pusateri, Thomas J
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Pusateri, Thomas J
description Techniques for delivering and receiving multicast content across a unicast network are described. A system that supports delivery and reception of multicast content across a unicast network includes a first device and a second device. The first device may be a destination device or a multicast-enabled router. The second device is multicast-enabled, and may be a multicast-enabled router. The first device determines whether a route between a destination device and a source of multicast packets is multicast-enabled, sends a unicast request message that includes as a destination address an address associated with the source and is marked for interception by a second device based on the determination, and receives the multicast packets as unicast packets from the second device. The second device intercepts the unicast request message and delivers the multicast packets to the requesting device as unicast packets in response to the unicast request message. The unicast request message indicates the address of the source and a group address, i.e., a source/group address pair, associated with the multicast packets that the first device wishes to receive.
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title Delivering and receiving multicast content across a unicast network
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