Process for transferring data packets between emulated LANs
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United States of America Patent
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-
Oct 24, 2000
Grant Date -
N/A
app pub date -
Dec 22, 1997
filing date -
Jul 5, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A distinction is made between unicast frames and multicast/broadcast frames for the transmission of information packets between a source LEC of a first ELAN and a destination LEC of a second ELAN. After initiation of a connection setup, unicast information packets are transmitted between source LEC and destination LEC via a wide-area ATM network upon employment of the destination ATM address. Multicast/broadcast information packets are transmitted from the source LEC to the destination LECs via a CLS wide-area network offering a connectionless service. For the transmission of the multicast/broadcast information packets, a specific LEC in every ELAN of an exemplary embodiment is coupled to the CLS network via a bridge or a router. In one exemplary embodiment, the CLS network is employed for determining a destination ATM address of a destination LEC for the unicast transmission.
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