Virtual circuit manager for multicast messaging

Details Virtual circuit manager for multicast messaging Virtual circuit manager for multicast messaging

1993-07-01

1996-04-23

Ray, Gopal C.

Multiplex communications

Wide area network

Packet switching

39520002, 395311, 370 54, 370 601, 370 941, 364940, 36494061, 36494064, 364919, 36492792, 364DIG2, H04L 1246, H04L 1256, H04Q 722, G06F 1300

Patent

active

055111688

ABSTRACT:
A multicast connection arrangement is provided by which a source node may establish multicast virtual circuits to a group of destination nodes of an arbitrary-topology network using a single procedure, and may subsequently modify those circuits, i.e., add or delete destination nodes, with a single, related procedure. The arrangement includes a multicast setup packet for opening the multicast virtual circuits, the packet containing a multicast identifier field, a virtual circuit field and a destination field identifying a list of desired destination node addresses. The multicast setup packet may be also used to add destination nodes to the circuits while a multicast delete packet is used to delete nodes from the circuits. When adding nodes to the multicast virtual circuits, a topology analysis process is provided to prevent the formation of an unstable network topology.

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