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公开(公告)号：DE68923489D1
公开(公告)日：1995-08-24
申请号：DE68923489
申请日：1989-05-23
Applicant: IBM
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公开(公告)号：DE3853022T2
公开(公告)日：1995-08-10
申请号：DE3853022
申请日：1988-04-12
Applicant: IBM
Inventor： BARATZ ALAN EDWARD , DRAKE JOHN ELLIS , GROVER GEORGE ALLAN , RAFALOW LEE MARK , GRAY JAMES PEYTON , POLLARD MELINDA ROSS , POZEFSKY DIANE PHYLIS
Abstract: Method of disseminating information in a computer network wherein, upon activating any link in the network, a first exchange of signals between nodes attached to said link is automatically initiated for providing each of the attached nodes with information indicating the availability of the node at the other end of the link for participating in a predetermined type session. If both nodes are available for participating in a the session, a second exchange of signals between the nodes is initiated for establishing a session. Then a third exchange is automatically initiated for providing the nodes with information needed to make effective use of the session. Upon completion of said third exchange, internal operations are conducted at said nodes designating the session as a predetermined type session and making said session available to transaction programs at the nodes for exchanging additional network state information as needed.
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公开(公告)号：DE68923489T2
公开(公告)日：1996-03-07
申请号：DE68923489
申请日：1989-05-23
Applicant: IBM
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Patent Agency Ranking
公开(公告)号：DE3887572T2
公开(公告)日：1994-08-18
申请号：DE3887572
申请日：1988-05-27
Applicant: IBM
Inventor： ARROWOOD ANDREW HILLIARD , BARATZ ALAN EDWARD , CHIMENTO PHILIP FRANCIS , DRAKE JOHN ELLIS , EISENBIES JOHN LAWRENCE , GRAY JAMES PEYTON , NORSWORTHY KARLA JEAN , POSEFSKY DIANE PHYLIS
Abstract: Each network node in a communications network maintains its own copy of the network topology database defining network resources. Each resource record contains a "timer" field which is initially set to a maximum value but which may be decremented on a daily basis. If the timer field is decremented to zero without being reset, the node unilaterally removes the resource record from its copy of the database. The timer field will normally reach zero only for obsolete resource records since each network node responsible for a resource broadcasts a timer-resetting message for the resource (1) each time the resource status changes, (2) when the node first joins or rejoins the network, and (3) on a periodic (weekly) basis regardless of whether conditions (1) or (2) have occurred.
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公开(公告)号：DE3853022D1
公开(公告)日：1995-03-23
申请号：DE3853022
申请日：1988-04-12
Applicant: IBM
Inventor： BARATZ ALAN EDWARD , DRAKE JOHN ELLIS , GROVER GEORGE ALLAN , RAFALOW LEE MARK , GRAY JAMES PEYTON , POLLARD MELINDA ROSS , POZEFSKY DIANE PHYLIS
Abstract: Method of disseminating information in a computer network wherein, upon activating any link in the network, a first exchange of signals between nodes attached to said link is automatically initiated for providing each of the attached nodes with information indicating the availability of the node at the other end of the link for participating in a predetermined type session. If both nodes are available for participating in a the session, a second exchange of signals between the nodes is initiated for establishing a session. Then a third exchange is automatically initiated for providing the nodes with information needed to make effective use of the session. Upon completion of said third exchange, internal operations are conducted at said nodes designating the session as a predetermined type session and making said session available to transaction programs at the nodes for exchanging additional network state information as needed.
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公开(公告)号：DE3887572D1
公开(公告)日：1994-03-17
申请号：DE3887572
申请日：1988-05-27
Applicant: IBM
Inventor： ARROWOOD ANDREW HILLIARD , BARATZ ALAN EDWARD , CHIMENTO PHILIP FRANCIS , DRAKE JOHN ELLIS , EISENBIES JOHN LAWRENCE , GRAY JAMES PEYTON , NORSWORTHY KARLA JEAN , POSEFSKY DIANE PHYLIS
Abstract: Each network node in a communications network maintains its own copy of the network topology database defining network resources. Each resource record contains a "timer" field which is initially set to a maximum value but which may be decremented on a daily basis. If the timer field is decremented to zero without being reset, the node unilaterally removes the resource record from its copy of the database. The timer field will normally reach zero only for obsolete resource records since each network node responsible for a resource broadcasts a timer-resetting message for the resource (1) each time the resource status changes, (2) when the node first joins or rejoins the network, and (3) on a periodic (weekly) basis regardless of whether conditions (1) or (2) have occurred.
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公开(公告)号：DE3882822T2
公开(公告)日：1994-03-17
申请号：DE3882822
申请日：1988-05-24
Applicant: IBM
Inventor： BARATZ ALAN EDWARD , GOPAL INDER SARAT , GRAY JAMES PEYTON , GROVER GEORGE ALLAN , JAFFE JEFFREY MARTIN , LORRAIN JEAN A , POLLARD MELINDA ROSS , POZEFSKY DIANE PHYLIS , POZEFSKY MARK , RAFALOW LEE MARK
Abstract: A search dynamically locates resources (e.g., logical units (LUs) and transaction programs and files associated with LUs) in a computer network so that a session can be established between the origin and the destination of the search. The network includes end nodes associated with server nodes,and a resource contained in any node is located by a requesting node. The requesting node initiates a search of the resources residing within itself. If the resource does not reside in the requesting node, the server node searches the resources known to the server node that reside anywhere in the network. If the resource is not known by the server node, it searches all resources that reside in its associated end nodes. If the resource does not reside in the associated end nodes, either a request is sent to a central directory if one exists or a search of all resources in the network is made.
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公开(公告)号：DE3882822D1
公开(公告)日：1993-09-09
申请号：DE3882822
申请日：1988-05-24
Applicant: IBM
Inventor： BARATZ ALAN EDWARD , GOPAL INDER SARAT , GRAY JAMES PEYTON , GROVER GEORGE ALLAN , JAFFE JEFFREY MARTIN , LORRAIN JEAN A , POLLARD MELINDA ROSS , POZEFSKY DIANE PHYLIS , POZEFSKY MARK , RAFALOW LEE MARK
Abstract: A search dynamically locates resources (e.g., logical units (LUs) and transaction programs and files associated with LUs) in a computer network so that a session can be established between the origin and the destination of the search. The network includes end nodes associated with server nodes,and a resource contained in any node is located by a requesting node. The requesting node initiates a search of the resources residing within itself. If the resource does not reside in the requesting node, the server node searches the resources known to the server node that reside anywhere in the network. If the resource is not known by the server node, it searches all resources that reside in its associated end nodes. If the resource does not reside in the associated end nodes, either a request is sent to a central directory if one exists or a search of all resources in the network is made.
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