Multiple address databases in a switch without the need for...

Details Multiple address databases in a switch without the need for... Multiple address databases in a switch without the need for...

2007-10-23

2007-10-23

Chin, Wellington (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S390000, C370S393000

Reexamination Certificate

active

10253183

ABSTRACT:
A method, apparatus, and computer-readable media for transferring data through a switch having a memory, a plurality of ports, and a plurality of address databases storing MAC addresses for devices in communication with the switch, each address database having a different database number comprises receiving a frame of the data on a port of the switch, the port associated with one of the address databases, the frame comprising a destination MAC address; hashing the destination MAC address, thereby producing a hashed MAC address; combining the hashed MAC address and the database number of the address database associated with the port that received the frame, thereby producing a bucket address, the bucket address identifying a plurality of bin addresses, wherein each of the bin addresses identifies a bin in the memory storing a MAC address and a port identifier that identifies one of the ports in the switch; searching the bins for a MAC address matching the destination MAC address; and transmitting the frame to the port identified by the port identifier stored in the bin storing a MAC address matching the destination MAC address.

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