Address detecting device of ethernet controller and address dete

Details Address detecting device of ethernet controller and address dete Address detecting device of ethernet controller and address dete

1997-10-14

2000-05-09

Patel, Ajit

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

H04L 1228

Patent

active

060613505

ABSTRACT:
Disclosed are an address detecting device of an ethernet controller and an address detecting method thereof which improve processing ability of a packet by prompt comparison between a destination address and a group address. The address detecting method of an ethernet controller includes the steps of detecting whether a predetermined byte destination address for a transmission packet has been stored in an MAC, outputting the stored destination address if so, comparing the destination address input from the MAC with a predetermined group address, outputting a hit signal which is indicative of coincidence to the MAC if the destination address is coincident with the group address, comparing the remaining byte destination address except for the predetermined byte destination address with the remaining byte group address except for the predetermined byte group address in response to the hit signal, and receiving the packet if the remaining byte destination address is coincident with the remaining byte group address.

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patent: 5537623 (1996-07-01), Chamberlain et al.
patent: 5854786 (1998-12-01), Henderson et al.

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