Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-07-22
2008-07-22
Ho, Duc C (Department: 2619)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S474000, C370S466000
Reexamination Certificate
active
07403532
ABSTRACT:
A multiported LAN switch comprised of legacy local area network ports and ATM ports. Each ATM port comprising a hardware forwarding engine for bridging LAN frames from the LAN ports to the ATM port. The hardware forwarding engine converts layer2protocols between the dissimilar ports expediently, without requiring intervention by a microprocessor. A substantial performance gain is attained compared to microprocessor controlled format converters. Both LAN emulation and virtual LANs are supported.
REFERENCES:
patent: 5852606 (1998-12-01), Prince et al.
patent: 6052383 (2000-04-01), Stoner et al.
patent: 6064674 (2000-05-01), Doidge et al.
Doidge Dennis Albert
Ervin Jim P.
Henderson Douglas Ray
Ku Edward Hau-chun
Patel Pramod Narottambhai
Ho Duc C
International Business Machines - Corporation
Piche Jason O.
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