公开(公告)号：MY118288A

公开(公告)日：2004-09-30

申请号：MYPI9702506

申请日：1997-06-05

Applicant: IBM

Inventor： COLMANT MICHEL ,  ENGBERSEN ANTONIUS P ,  HEDDES MARCO ,  WEERT MARINUS J M VAN

IPC: H04Q3/00 ,  H04L12/54 ,  H04L12/70 ,  H04L12/933 ,  H04Q11/04

Abstract: THE INVENTION RELATES TO A SWITCHING DEVICE WHICH TRANSPORTS DATA PACKETS FROM INPUT PORTS (101-108)TO SELECTED OUTPUT PORTS(501-508). THE PAYLOAD OF THE PACKETS IS STORED IN A STORAGE MEANS. A SWITCHING MEANS (3401-3432)IS ARRANGED WHICH HAS MORE SWITCH OUTPUTS (291-294)THAN SWITCH INPUTS (85)AND WHICH SWITCHES SEQUENTIALLY BETWEEN ONE SWITCH INPUT AND SEVERAL SWITCH OUTPUTS WHILE STORING THE PAYLOADS. FURTHERMORE, THE INVENTION RELATES TO A STORING METHOD WHICH USES SWITCHING MEANS TO STORE PAYLOADS IN A SEQUENTIAL ORDER AND TO A SWITCHING APPARATUS COMPRISING SEVERAL SWITCHING DEVICES. FURTHERMORE, THE INVENTION RELATES TO SYSTEMS USING THE SWITCHING DEVICE AS A SCALEABLE MODULE.

公开(公告)号：AU2003215841A1

公开(公告)日：2003-11-17

申请号：AU2003215841

申请日：2003-03-31

Applicant: IBM

Inventor： ABEL FRANCOIS G ,  BENNER ALAN ,  BLANC ALAIN ,  COLMANT MICHEL ,  GUSAT MITCH ,  PORET MICHEL ,  SCHUMACHER NORBERT ,  VERHAPPEN MARK

IPC: H04L12/56 ,  H04Q11/04

Abstract: A communication system which consists of several modules—operating in parallel on segments of a packet—to increase speed and handling capacity. One module acts as master, the others are slave modules controlled by control signals derived by the master module. It is important that in each module the data segment and the respective control signal of each packet are correctly synchronized, because in large systems the data paths carrying packet segments and the control signal paths may have substantially different delays. The invention provides for measurement of the propagation delay differences and for introducing a controlled delay in each slave module, so that data segments and control signals can be correctly correlated by delaying either the one or the other. Synchronization packets are transmitted besides normal data packets, for obtaining time stamps which are used to determine the delay difference.