Method of correspondence between group communication...

Details Method of correspondence between group communication... Method of correspondence between group communication...

2007-08-22

2011-11-22

Phillips, Hassan (Department: 2467)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S392000, C370S432000, C370S474000, C709S245000

Reexamination Certificate

active

08064448

ABSTRACT:
An identifier (IDp) designates a group of terminals accessible via the network (RP) by packets having a multicast address as destination address. An equipment (EIm) between the network and a terminal (Tn) belonging to a group calculates the multicast address of the group using a function depending on the identifier (IDp) of the group each time that a packet including a message transmitted by the terminal is to be transmitted to the network. The equipment also calculates a group identifier (IDp) using a function depending on a multicast address extracted each time that a packet transmitted from the network is received by the equipment in order to transmit a message content extracted from the packet to be received by the terminal if the calculated group identifier is identical to the identifier of the group to which the terminal belongs. No table of mappings between the identifiers of the groups and the multicast addresses is stored in the equipment.

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