Electrical computers and digital processing systems: multicomput – Computer-to-computer data routing
Reexamination Certificate
2007-05-22
2007-05-22
Cardone, Jason (Department: 2145)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data routing
C709S242000, C709S249000, C370S392000, C370S397000, C370S399000, C370S395320, C370S395520, C370S395540, C370S401000
Reexamination Certificate
active
09488945
ABSTRACT:
A method and apparatus for layer3switching packets between locally attached virtual local area networks without using a routing protocol are provided. A learning internetwork switch is connected between a router and a plurality of virtual local area networks. Communications between devices on the virtual local area networks and the router pass through the learning internetwork switch. By inspecting certain packets that flow between the devices and the router, the learning internetwork switch learns the location of the devices without having to use a routing protocol. The learning internetwork switch learns the network layer and the data link layer addresses of the various devices. Once the learning internetwork switch has learned the location, the network layer address and data link layer address of a device, the learning internetwork switch can forward packets between devices on different virtual local area networks using layer3switching without involving the router.
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Ames Steve
Bialkowski Jan
Byrne Donal
Cave Dennis
Blakely , Sokoloff, Taylor & Zafman LLP
Cardone Jason
Nortel Networks Limited
Pollack Melvin H.
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