Frame switch with serial data processing

Details Frame switch with serial data processing Frame switch with serial data processing

1997-04-30

1999-12-21

Maung, Zarni

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

709238, H04L 1256

Patent

active

060058633

ABSTRACT:
A data frame switching apparatus has number data ports and a port traffic management unit for each port. Each port traffic management unit includes a physical layer unit for receiving and transmitting data frames, a serial shift register for temporarily storing a portion of each received data frame in serial data format, and a port controller for extracting each data frame's source and destination address from the portion of the data frame stored in the serial shift register. A crossbar switch connects any specified one of the data ports that is receiving a data frame to another one of the data ports so as to transmit the received data frame to a corresponding destination. A global traffic manager and lookup engine map the destination address of each received data frame to a corresponding destination port, determine the availability of the destination port, and when the destination port if available, send setup signals to the switch so as to connect the data port on which the data frame is being received to the destination port.

REFERENCES:
patent: 4641302 (1987-02-01), Miller
patent: 5157654 (1992-10-01), Cisneros
patent: 5309432 (1994-05-01), Kanakia
patent: 5440550 (1995-08-01), Follett
patent: 5757795 (1998-05-01), Schnell

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