公开(公告)号：EP0597013B1

公开(公告)日：1998-12-23

申请号：EP92917104.9

申请日：1992-07-22

Applicant: TANDEM COMPUTERS INCORPORATED

Inventor： HOLEMAN, James, E. ,  TEISBERG, Robert, R. ,  MORRISON, Gary R. ,  HERON, David, T. ,  BOYD, Jeffrey, A.

IPC: G06F13/14 ,  G06F13/40

CPC classification number: G06F13/364 ,  H04L12/56

Abstract: A data communication system (10) embodying an apparatus and a method provides simultaneous paths between a plurality of transmit ports and a plurality of receive ports (191) for transmitting therebetween data identifying their destination receive ports. Such data are signals which are constructed in accordance with a standard serial protocol for frame element communication, such as HDLC (High-level Data Link Control). The system is assembled in a chassis containing a backplane (200) and multiple cards having transmit and receive ports through which the cards couple the backplane (200). The system includes: a receiver of data transmitted (300) by a source transmit port, a recognizer of the destination receive port identified by the received data, a determiner of the availability of the recognized destination receive port, a connector of a path between the source transmit port and the destination receive port in response to a determination that the recognized destination receive port is available, and a transmitter of the received data to the destination receive port through the connected path.