Method for managing frames in a global-area communications...

Details Method for managing frames in a global-area communications... Method for managing frames in a global-area communications...

2008-10-24

2010-12-21

Pham, Chi H (Department: 2471)

Multiplex communications

Data flow congestion prevention or control

Reexamination Certificate

active

07855955

ABSTRACT:
A method for managing frames in a global-area communications network comprises a plurality of sub-networks linked to one another by tunnels at the ends of which there are tunnel endpoints, at least one of the sub-networks comprising at least one source device connected to one of said tunnel endpoints through said sub-network. When a given tunnel endpoint receives from a local sub-network, to which said given tunnel endpoint is connected, a frame sent out by a source device in the global-area network, the given tunnel endpoint performs the following steps: obtaining, from said frame, an address of the source device; verifying that the obtained address is included in a first list of addresses comprising addresses associated with source devices connected to remote sub-network or sub-networks distinct from the local sub-network; and in the event of positive verification, discarding said frame.

REFERENCES:
patent: 5870386 (1999-02-01), Perlman et al.
patent: 6343330 (2002-01-01), Khanna et al.
patent: 7134012 (2006-11-01), Doyle et al.
patent: 2004/0213237 (2004-10-01), Yasue et al.
patent: 2006/0013221 (2006-01-01), De Cnodder et al.

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