International Business Machines Corporation

John O Mitchell

Lance D Bader

Sakthimurugan Arumugam

John Hoon Shin

Srinivasan Sivaraman

Suvas Manubhai Shah

Gary Michael Weichinger

A method, system and article of manufacture are disclosed for establishing a connection between a plurality of nodes in a communication network, the plurality of nodes including at least first and second nodes. The method comprises the steps of verifying availability of the second node by the first node; and sending an exchange identification request by the first node to the second node, this request including information related to protocols supported by the first node. An exchange identification response is received by the first node from the second node, this response including information related to protocols supported by the second node. Also, the verifying step includes the steps of sending a request to the second node to initiate a link level connection between the first node and the second node, and confirming this connection upon receiving a response from the second node.

Method and system for establishing connections between nodes in a communication network

Methods, systems and computer program products for the reassignment of communications sessions to a primary network communications path from a secondary network communications path are provided, which detect the availability of the primary network communications path and reroute existing transferable communications sessions to the primary network communications path from the secondary network communications path. Non-transferable communications sessions are maintained over the secondary network communications path until such non-transferable communications sessions are terminated. Upon termination of all such non-transferable communications sessions, the secondary network communications path may be deactivated. Additionally, new communications sessions may be assigned to the primary network communications path if the availability of the primary network communications path has been detected. Moreover, the reassignment of communications sessions to a primary network communications path from a secondary network communications path may be performed automatically by the network control software, without disruption of the communications sessions.

Non-disruptively rerouting network communications from a secondary network path to a primary path

Non-disruptively rerouting network communications from a secondary

A system and method for connecting subarea SNA (systems network architecture) peripheral nodes into an APPN (Advanced Peer-to-Peer Network) network such that the peripheral nodes can function in the APPN network without upgrades to their existing software. This method also also enhances the manageability of the peripheral nodes by allowing the representation of the PU (physical unit) to reside in the peripheral node.

Extended DLUR/APPN support for non-APPN SNA devices

Growing community of inventors

Raleigh, NC, United States of America

John O Mitchell