Multiple group address recognition

Details Multiple group address recognition Multiple group address recognition

1993-03-01

1996-07-16

Geckil, Mehmet B.

Boots, shoes, and leggings

39520021, 395435, 364DIG1, 3642463, 3642475, 36424294, G06F 1200

Patent

active

055376231

ABSTRACT:
A network interface card for attaching computers, work stations or the like to a Local Area Network (LAN) includes a device which indicates an address compare if selected bits in a first part of an address, in the address field of a received frame, matches bits stored in the network interface card and at least one bit of a code word stored at a particular address of an index RAM is set to a predetermined state. The particular address in the index RAM is identified by a second part of the address in the received frame. The range of address which can be recognized is further extended by a contents addressable memory (CAM) coupled to the device. The CAM makes a parallel compare between an input address and its contents and outputs a match signal if a match is found. A programmable control register is used to activate or deactivate the CAM or the device.

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patent: 5386566 (1995-01-01), Hamanaka et al.

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