Method and system for sending frames around a head of line block

Details Method and system for sending frames around a head of line block Method and system for sending frames around a head of line block

1998-05-13

2000-05-16

Hsu, Alpus H.

Multiplex communications

Fault recovery

Bypass an inoperative channel

370360, 370386, 34082501, 340827, 709239, H04J 314, G06F 1300

Patent

active

060646470

ABSTRACT:
A method and system for transmitting data frames from a source path to a primary destination path having more than one source path requesting access thereto in a crossbar interconnect network includes a primary source buffer associated with each of the source paths for receiving a first data frame for transmission to a primary destination path via a primary connection. An alternate source buffer is also provided for each of the source paths for receiving a second data frame for transmission to an alternate destination path via an alternate connection upon determining the primary destination path is busy and the primary connection cannot be made immediately. A destination arbitrator coupled to the destination paths queues connections upon receipt of the connections and initiates the connections when the destination paths are not busy. A source arbitrator, coupled to the source paths and in communication with the destination arbitrator, transmits the second data frame to the alternate destination path via the alternate connection while waiting for the primary connection to be made if the alternate destination path is not busy. If the alternate destination path is busy, the source arbitrator monitors the primary destination path and the alternate destination path to determine when one of the primary and alternate connections has been made in order to transmit either the first or second data frames to the corresponding primary and alternate destination paths.

REFERENCES:
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patent: 5307466 (1994-04-01), Chang
patent: 5463486 (1995-10-01), Stevens
patent: 5623698 (1997-04-01), Stephenson et al.
patent: 5638516 (1997-06-01), Duzett et al.
patent: 5740346 (1998-04-01), Wicki et al.
patent: 5815023 (1998-09-01), Webber et al.
patent: 5857087 (1999-01-01), Bemanian et al.

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