公开(公告)号：BR9304798A

公开(公告)日：1994-05-31

申请号：BR9304798

申请日：1993-11-23

Applicant: IBM

Inventor： POZEFSKY DIANE ,  TURNER ROGER ,  SARKAR SOUMITRA ,  DOERINGER WILLIBALD ,  DYKEMAN DOUGLAS ,  EDWARDS ALLAN K

IPC: H04L12/56 ,  H04L12/18 ,  G06F13/00

Abstract: Disclosed are a method and a system for transmitting a message or data packet from a single sender (21) to a plurality, i.e. a group of receivers, usually called multicasting, within a conventional unicast transmission network, i.e. a network basically not equipped to handle such multicast transmissions, consisting of a plurality of subnetworks (22 - 24) The nodes or gateways (25 - 29) connecting the subnetworks maintain tables of multicast receiving stations (or groups of such) and the header of each message includes information defining the groups of the addressed multicast receiving stations.

公开(公告)号：CA2069710C

公开(公告)日：1996-08-20

申请号：CA2069710

申请日：1992-05-27

Applicant: IBM

Inventor： BIRD RAYMOND F ,  BRITTON KATHRYN H ,  CHUNG TEIN-YAW D ,  EDWARDS ALLAN K ,  MATHEW JOHNY ,  POZEFSKY DIANE P ,  SARKAR SOUMITRA ,  TURNER ROGER D ,  CHUNG WINSTON W-K ,  YEUNG YUE T ,  GRAY JAMES P ,  DYKEMAN HAROLD D ,  DOERINGER WILLIBALD A ,  AUERBACH JOSHUA S ,  WILSON JOHN H

IPC: G06F13/00 ,  H04L29/06 ,  G06F13/42 ,  H04L12/28

Abstract: A Transport Layer Protocol Boundary (TLPB) architecture is described which will permit an application program to run over a non-native transport protocol without first generating a protocol compensation package tailored to the transport protocols assumed by the program's application programming interface and by the available transport provider. All transport functions required by the program are converted to standardized or TLPB representations. When a connection between the first application program and a second remote application is requested, the individual required TLPB transport functions are compared to corresponding functions supported by the transport provider. Compensations are invoked only where there is a mismatch. The node on which the remote application program runs is informed of the compensations so that necessary de-compensation operations can be performed before the data is delivered to the remote application program.

公开(公告)号：CA2069710A1

公开(公告)日：1993-01-18

申请号：CA2069710

申请日：1992-05-27

Applicant: IBM

Inventor： BIRD RAYMOND F ,  BRITTON KATHRYN H ,  CHUNG TEIN-YAW D ,  EDWARDS ALLAN K ,  MATHEW JOHNY ,  POZEFSKY DIANE P ,  SARKAR SOUMITRA ,  TURNER ROGER D ,  CHUNG WINSTON W ,  YEUNG YUE T ,  GRAY JAMES P ,  DYKEMAN HAROLD D ,  DOERINGER WILLIBALD A ,  AUERBACH JOSHUA S ,  WILSON JOHN H

IPC: G06F13/00 ,  H04L29/06 ,  G06F13/42 ,  H04L12/48

Abstract: A Transport Layer Protocol Boundary (TLPB) architecture is described which will permit an application program to run over a non-native transport protocol without first generating a protocol compensation package tailored to the transport protocols assumed by the program's application programming interface and by the available transport provider. All transport functions required by the program are converted to standardized or TLPB representations. When a connection between the first application program and a second remote application is requested, the individual required TLPB transport functions are compared to corresponding functions supported by the transport provider. Compensations are invoked only where there is a mismatch. The node on which the remote application program runs is informed of the compensations so that necessary decompensation operations can be performed before the data is delivered to the remote application program.

公开(公告)号：CA2130412C

公开(公告)日：1998-01-20

申请号：CA2130412

申请日：1994-08-18

Applicant: IBM

Inventor： MATHEW JOHNY ,  CHUNG TEIN-YAW ,  SARKAR SOUMITRA ,  TURNER ROGER D ,  EDWARDS ALLAN K ,  DYKEMAN HAROLD D ,  DOERINGER WILLIBALD ,  POZEFSKY DIANE P ,  BRITTON KATHRYN H

IPC: H04L12/46 ,  H04L29/06 ,  H04L29/08 ,  H04L12/66

Abstract: A multiprotocol transport network (MPTN) gateway provides transparent interconnection of two or more SPTNs running different transport layer protocols to form an integrated heterogeneous MPTN. The MPTN gateway of the present invention has no dependencies on the particular transport protocols running on the SPTNs being interconnected as it utilizes a common transport provider (a GatewayServices Protocol Boundary (GSPB)) between the SPTN transport protocols and the gateway components . The MPTN gateway supports connections between end systems across multiple intermediate networks. The MPTN gateway provides automatic routing based on dynamic participation in the routing protocols of the interconnected SPTNs so that any number of gateways may be interconnected and in any topology desired. As the MPTN gateway has a general architecture and acquires routing information automatically, it supports not only other MPTN nodes and gateways but also non-MPTN nodes and gateways.

公开(公告)号：CA2105040A1

公开(公告)日：1994-05-28

申请号：CA2105040

申请日：1993-08-27

Applicant: IBM

Inventor： POZEFSKY DIANE ,  TURNER ROGER D ,  EDWARDS ALLAN K ,  SARKAR SOUMITRA ,  DOERINGER WILLIBALD ,  DYKEMAN DOUGLAS

IPC: H04L12/56 ,  H04L12/18 ,  H04L5/14 ,  H04L25/02 ,  H04L29/02

Abstract: Disclosed are a method and a system for transmitting a message or data packet from a single sender (21) to a plurality, i.e. a group of receivers, usually called multicasting, within a conventional unicast transmission network, i.e. a network basically not equipped to handle such multicast transmissions, consisting of a plurality of subnetworks (22 - 24) The nodes or gateways (25 - 29) connecting the subnetworks maintain tables of multicast receiving stations (or groups of such) and the header of each message includes information defining the groups of the addressed multicast receiving stations.