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公开(公告)号：CA2130412A1
公开(公告)日：1995-07-01
申请号：CA2130412
申请日：1994-08-18
Applicant: IBM
Inventor： BRITTON KATHRYN H , DOERINGER WILLIBALD , DYKEMAN HAROLD D , CHUNG TEIN-YAW , EDWARDS ALLEN K , MATHEW JOHNY , POZEFSKY DIANE P , SARKAR SOUMITRA , TURNER ROGER D
Abstract: A multiprotocol transport network (MPTN) gateway provides transparent interconnection of two or more SPTNs (12, 14, 16, 18) 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 Gateway Services Protocol Boundary (GSPB)) (38) 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.
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公开(公告)号：DE69422935D1
公开(公告)日：2000-03-09
申请号：DE69422935
申请日：1994-06-30
Applicant: IBM
Inventor： DOERINGER WILLIBALD , DYKEMAN DOUGLAS , KARJOTH GUENTER , NASSEHI MEHDI , SHARMA B
Abstract: PCT No. PCT/EP94/02135 Sec. 371 Date Dec. 17, 1996 Sec. 102(e) Date Dec. 17, 1996 PCT Filed Jun. 30, 1994 PCT Pub. No. WO96/00945 PCT Pub. Date Jan. 11, 1996The building, maintenance, and use of a database is described having a trie-like structure for storing entries and retrieving an at least partial match, preferably the longest partial match, or all partial matches of a search argument (input key) from said entries, said database having nodes (20), with each node containing first link information (21) leading to at least one previous node (parent pointer) and second link information (25,26) leading to at least one following node (child pointer), at least a stored key (entry, 23, 24), or a combination, thereof. The particular structure of the nodes allows a two-step search process, in which segments of a search argument are firstly used to determine a search path through the trie-like database, said search path being backtracked in the second part of the search. During the second part of the search the entire search argument is compared to entries stored in the nodes until a match is found. The described database allows an efficient use of memories and is advantageously applied to fast data retrieval, in particular related to communication within computer networks. No recursive procedures are applied.
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公开(公告)号：CA2105040C
公开(公告)日：1998-04-21
申请号：CA2105040
申请日：1993-08-27
Applicant: IBM
Inventor： TURNER ROGER D , SARKAR SOUMITRA , EDWARDS ALLAN KENDRICK , POZEFSKY DIANE , DOERINGER WILLIBALD , DYKEMAN DOUGLAS
Abstract: Disclosed are a method and a system for transmitting a message or data packet from a single sender 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. The nodes or gateways 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.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：DE69422935T2
公开(公告)日：2000-08-17
申请号：DE69422935
申请日：1994-06-30
Applicant: IBM
Inventor： DOERINGER WILLIBALD , DYKEMAN DOUGLAS , KARJOTH GUENTER , NASSEHI MEHDI , SHARMA B
Abstract: PCT No. PCT/EP94/02135 Sec. 371 Date Dec. 17, 1996 Sec. 102(e) Date Dec. 17, 1996 PCT Filed Jun. 30, 1994 PCT Pub. No. WO96/00945 PCT Pub. Date Jan. 11, 1996The building, maintenance, and use of a database is described having a trie-like structure for storing entries and retrieving an at least partial match, preferably the longest partial match, or all partial matches of a search argument (input key) from said entries, said database having nodes (20), with each node containing first link information (21) leading to at least one previous node (parent pointer) and second link information (25,26) leading to at least one following node (child pointer), at least a stored key (entry, 23, 24), or a combination, thereof. The particular structure of the nodes allows a two-step search process, in which segments of a search argument are firstly used to determine a search path through the trie-like database, said search path being backtracked in the second part of the search. During the second part of the search the entire search argument is compared to entries stored in the nodes until a match is found. The described database allows an efficient use of memories and is advantageously applied to fast data retrieval, in particular related to communication within computer networks. No recursive procedures are applied.
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公开(公告)号：DE69228423T2
公开(公告)日：1999-09-30
申请号：DE69228423
申请日：1992-11-27
Applicant: IBM
Inventor： EDWARDS ALLAN KENDRICK , POZEFSKY DIANE , TURNER ROGER O , SARKAR SOUMITRA , DOERINGER WILLIBALD , DYKEMAN DOUGLAS
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.
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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
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.
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