Sharing a shared resource across logical partitions or systems

Abstract

An apparatus and method for sharing a resource (such as a modem or virtual private network) allow virtualizing the shared resource in a simple and efficient manner that allows both accepting and initiating virtual or physical connections through the shared resource across logical partitions or systems. An L2TP tunnel is established between the server that owns the shared resource and the client that desires to use the shared resource. Messages are defined that allow the client to initiate an outgoing connection through the shared resource, and that allow the client to accept an incoming connection received from the shared resource. Once the connection is made, the client and ultimate destination communicate through the shared resource via point-to-point communications.

Description

CROSS-REFERENCE TO PARENT APPLICATION[0001]This patent application is a continuation of “Apparatus and Method for Sharing a Shared Resource Across Logical Partitions or Systems, U.S. Ser. No. 10 / 815,235 filed on Mar. 31, 2004, which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]This invention generally relates to data processing, and more specifically relates to the sharing of resources between logical partitions in a logically partitioned computer system or between physical computer systems.[0004]2. Background Art[0005]Since the dawn of the computer age, computer systems have evolved into extremely sophisticated devices that may be found in many different settings. Computer systems typically include a combination of hardware (e.g., semiconductors, circuit boards, etc.) and software (e.g., computer programs). As advances in semiconductor processing and computer architecture push the performance of the computer hardware higher, more soph...

AI Technical Summary

Benefits of technology

The invention is a way to share resources like modems or virtual private networks. It allows for easy and efficient virtualization of shared resources across logical partitions or systems. It uses an L2TP tunnel to connect the server that owns the shared resource to the client that needs it. Messages are defined that allow the client to initiate and accept connections through the shared resource. Once a connection is made, the client and ultimate destination communicate through the shared resource using point-to-point communications. The technical effect of this invention is that it simplifies resource sharing, making it easier for clients to access and use shared resources.

Problems solved by technology

This configuration does not allow the client that wants to use the modem to directly control the modem.

Instead, the modem is controlled by the modem server, and use of the modem is limited according to the predefined static configuration on both the modem server and the client.

Without a way to share a resource such as a modem between logical partitions or between physical computer systems in a more efficient manner, the computer industry will continue to suffer from inefficient ways of sharing resources across multiple logical partitions or systems.

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