Systems and methods for making serial ports of existing computers available over a network

• US 8,218,566 B2
• Filed: 10/07/2005
• Issued: 07/10/2012
• Est. Priority Date: 10/07/2005
• Status: Active Grant

• Current Assignee: Hewlett-Packard Enterprise Company
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Brown, Andrew
• Primary Examiner(s): Wu, Jianye
• Application Number:
  US11/245,667
• Publication Number:
  US 20070081552A1
• Time in Patent Office: 2,468 Days
• Field of Search: 370/463, 370/419, 370/465
• US Class Current: 370/463
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 41/22 comprising specially adapted graphical user interfaces [GUI]

Abstract

Systems and methods for making serial ports of existing computers available over a network are disclosed. In an exemplary embodiment the system may comprise a serial controller for locally controlling at least one serial port at a networked computer. A management processor is operatively associated with the networked computer. The management processor operates in a first mode to disable local control of the at least one serial port by the serial controller. The management processor takes control of the at least one serial port for network access.

Claims

1. A system for making serial ports of existing computers available over a network, comprising:

a serial controller for locally controlling at least one serial port of a networked computer; and

a management processor operatively associated with the networked computer and operable in both a first mode and a second mode, the management processor operating in the first mode to disable local control of the at least one serial port by the serial controller, the management processor taking control of the at least one serial port for network access in the first mode, and the management processor operating in the second mode to return control of the at least one serial port to the serial controller.

2. The system of claim 1 wherein the management processor operating in the first mode manages communications with the at least one serial port exclusive of the serial controller.

3. The system of claim 1 further comprising a user interface for selecting between network support for the at least one serial port and local support for the at least one serial port.

4. The system of claim 1 further comprising program code executable by the management processor, the program code converting serial communications from the at least one serial port into a secure network protocol.

5. The system of claim 1 wherein the management processor is operational independent of an operating system for the networked computer.

6. The system of claim 1 wherein the at least one serial port is available for network access even if the networked computer is powered off.

7. A method for making serial ports of existing computers available over a network, comprising:

selecting from two operational modes for at least one serial port of the networked computer;

in a first mode, removing control of the at least one serial port from a serial controller at a networked computer;

in the first mode, providing network access to the at least one serial port exclusive of the serial controller; and

in a second mode, returning control of the at least one serial port to the serial controller at the networked computer.

8. The method of claim 7 further comprising establishing a dedicated connection between a serial device connected to the at least one serial port and another network device.

9. The method of claim 8 wherein the serial device appears as a local device to the network device.

10. The method of claim 7 further comprising identifying the networked computer with the at least one serial port.

11. The method of claim 7 wherein removing control of the at least one serial port from the serial controller is by logically disconnecting the serial controller from the at least one serial port.

12. The method of claim 7 further comprising establishing a secure connection between the at least one serial port and another network device.

13. The method of claim 7 further comprising translating serial communications from the at least one serial port to a secure network protocol.

14. The method of claim 7 further comprising providing network access to the at least one serial port independent of an operating system executing on the networked computer.

15. The method of claim 7 further comprising providing network access to the at least one serial port even if the networked computer is powered off.

16. A system for making serial ports of existing computers available over a network, comprising:

means for selecting from two operational modes;

means for removing control of at least one serial port from a serial controller in a first operational mode;

means for making the at least one serial port available over the network exclusive of the serial controller in the first operational mode; and

means for returning control of the at least one serial port to the serial controller in a second operational mode.

17. The system of claim 16 further comprising means for establishing an out-of-band serial connection with the at least one serial port, the out-of-band serial connection being used when an in-band mode of operation is unavailable.

18. The system of claim 16 further comprising means for providing network access to the at least one serial port even if the networked computer is powered off.