Outgoing interface mapping for multicast traffic

Details Outgoing interface mapping for multicast traffic Outgoing interface mapping for multicast traffic

2011-07-19

2011-07-19

Sheikh, Ayaz R (Department: 2476)

Multiplex communications

Communication over free space

Message addressed to multiple destinations

C370S432000, C370S401000

Reexamination Certificate

active

07983205

ABSTRACT:
Multiple subscriber devices are connected to a network device via one or more network switches. The network device transmits multicast traffic to the subscriber devices. In particular, the network device may receive membership requests for a multicast group from the subscriber devices via the network switch on a first interface, i.e., a mapping interface. The network device sends a multicast stream associated with the multicast group to the network switch on a second interface, i.e. an outgoing interface (OIF). Upon receiving a membership request, the network device maps the membership request to an OIF dedicated to the multicast group. In this way, when multiple subscriber devices connected to the same switch request the same multicast stream, each membership request will map to the same OIF. The network device sends one copy of the multicast stream to the network switch on the dedicated OIF.

REFERENCES:
patent: 6331983 (2001-12-01), Haggerty et al.
patent: 2004/0090970 (2004-05-01), Sanchez et al.
patent: 2004/0258003 (2004-12-01), Kokot et al.
patent: 2005/0152370 (2005-07-01), Meehan et al.

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