Computer system, method and network

• US 20040039847A1
• Filed: 05/20/2003
• Published: 02/26/2004
• Est. Priority Date: 05/20/2002
• Status: Abandoned Application

• Current Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Persson, Lars, Lofstrand, Mikael
• Application Number:
  US10/441,930
• Publication Number:
  US 20040039847A1
• Time in Patent Office: Days
• US Class Current: 709/250
• CPC Class Codes: H04L 12/4612 LAN interconnection over narrowband networks, e.g. N-ISDN, PSTN, X.25
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 12/4645 Details on frame tagging routing of packets H04L45/00; support for virtual LAN H04L49/354
• CPC Class Codes: H04L 12/467 Arrangements for supporting untagged frames, e.g. port-based VLANs
• CPC Class Codes: H04L 67/01 Protocols

Abstract

A server for a thin client network comprises a thin client network management and control module. The server also comprises a network interface mechanism which includes a broadband interface module and a narrowband emulation module inter-operable to provide a communications link to one or more thin client terminals on the thin client network. The management and control module is inter-operable with the network interface mechanism for providing a thin client network over a broadband network. Broadly speaking, the narrowband emulation module is superimposed on the broadband interface module to provide a network interface mechanism operable as an emulated narrowband interface. A thin client network implemented over a broadband network is also disclosed, together with a method for setting up and operating the same.

Claims

1. A server mechanism for a thin client network domain distributed over a broadband network, comprising:

a thin client network domain management module;

a network interface mechanism including a broadband network interface module and a narrowband emulation module interoperable with the broadband network interface module to provide a communications link to one or more thin client terminals over a broadband network;

said domain management and/or control module interoperable with said network interface mechanism to provide a thin client network domain environment over said broadband network.

2. A server mechanism according to claim 1, wherein said thin client network domain management module includes a directory of file identifiers, said directory modified to substitute an identifier of said network interface mechanism for an identifier of a narrowband network interface module.

3. A server mechanism according to claim 1, further comprising a further network interface mechanism including a broadband communications technology network interface module and a narrowband emulation module interoperable with the thin client network domain management module to configure a further thin client network domain environment over said broadband network.

4. A server mechanism according to claim 1, wherein said narrowband emulation module comprises a Local Area Network Emulation (LANE) module.

5. A server mechanism according to claim 4, wherein said LANE module is operable for one or more of the following LAN protocols:

Ethernet;

Token Rings; and

FDDI.

6. A server mechanism according to claim 1, further comprising a narrowband network interface module.

7. A server mechanism according to claim 6, wherein said narrowband network interface module comprises a LAN module.

8. A server mechanism according to claim 7, wherein said LAN module is operable for one or more of the following LAN protocols:

Ethernet;

Token Rings; and

FDDI.

9. A server mechanism according to claim 1, said broadband communications technology network interface module operable for one or more of Classical IP (CLIP), Permanent Virtual Circuits (PVC), Asynchronous Transfer Mode (ATM), Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH).

10. A data processing apparatus configured to implement a server mechanism according to claim 1.

11. A computer network, comprising:

a data processing apparatus according to claim 10 coupleable to a broadband network; and

,

a thin client terminal configured to be operable with a narrowband protocol;

said thin client terminal coupleable to said broadband network by a broadband switch module configured to provide an interface between a thin client network type environment and said broadband network for communicating between the thin client terminal and the data processing apparatus.

12. A computer network according to claim 11, wherein said thin client terminal is coupleable to said broadband switch module via a narrowband switch module.

13. A computer network according to claim 11, wherein said data processing apparatus is disposed in a Service Delivery Network server architecture and is configured to implement an access service to said Service Delivery Network for said thin client terminal.

14. A computer network according to claim 12, said narrowband switch comprising a LAN switch performing a virtual LAN in cooperation with said broadband switch and said data processing apparatus.

15. A computer network according to claim 14, wherein said LAN switch is operable for one or more of the following protocols:

Ethernet;

Token Ring; and

FDDI.

16. A computer network according to claim 10, wherein said broadband communications technology network comprises at least one of the following communications technologies:

Classical IP (CLIP);

Permanent Virtual Circuits (PVC);

Asynchronous Transfer Mode (ATM);

Synchronous Optical Network (SONET); and

Synchronous Digital Hierarchy (SDH).

17. A data processing apparatus according to claim 10, implemented as a computer system.

18. A server mechanism for a thin client network domain distributed over a broadband network, comprising:

a thin client network domain control module;

a network interface mechanism including a broadband network interface module and a narrowband emulation module interoperable with the broadband network interface module to provide a communications link to one or more thin client terminals over a broadband network;

said domain management and/or control module interoperable with said network interface mechanism to provide a thin client network domain environment over said broadband network.

19. A server mechanism according to claim 18, wherein said thin client network domain control module includes a directory of file identifiers, said directory modified to substitute an identifier of said network interface mechanism for an identifier of a narrowband network interface module.

20. A server mechanism according to claim 18, further comprising a further network interface mechanism including a broadband communications technology network interface module and a narrowband emulation module interoperable with the thin client network domain control module to configure a further thin client network domain environment over said broadband network.

21. A method for forming a thin client network domain over a broadband network, comprising:

configuring a thin client server mechanism with a broadband network interface;

emulating a LAN controller on said thin client server mechanism;

configuring one or more broadband edge switches for communication with one or more thin client terminals in said domain to form a virtual private network with said thin client server mechanism; and

communicating LAN signals to said one or more thin client terminals over said virtual private network.

22. A method of forming a thin client network domain over a broadband network, comprising:

forming a virtual local area network over said broadband;

configuring a thin client server mechanism to emulate a LAN controller over a broadband network interface to control said virtual local area network; and

coupling one or more thin client terminals to said virtual LAN for communicating with said thin client server mechanisms.

23. A method of configuring a thin client server mechanism to form a thin client network domain over a broadband network, comprising:

initialising a thin client server mechanism with a LAN module;

installing a LAN emulation (LANE) module interoperable with a broadband network interface; and

modifying a pointer to said LAN module to point to said LANE module.

24. A computer usable medium having computer or processor-readable program code embodied therein operable to effect the performance of a thin client server mechanism, said computer readable program comprising computer readable program code for:

configuring a thin client server mechanism with a broadband network interface;

emulating a LAN controller on said thin client server mechanism;

configuring one or more broadband edge switches for communication with one or more thin client terminals in said domain to form a virtual private network with said thin client server mechanism; and

communicating LAN signals to said one or more thin client terminals over said virtual private network.

25. A computer usable medium according to claim 24, wherein the computer usable medium comprises at least a one of the following said media:

a signal including an optical, electronic or RF carrier signal, a magnetic disk or tape, solid-state memory, an optical readable and or writable disk, a compact disc and a digital versatile disc.

26. A computer usable medium having computer or processor readable program code embodied therein operable to effect the performance of a thin client server mechanism, said computer readable program comprising computer readable program code for:

forming a virtual local area network over said broadband;

configuring a thin client server mechanism to emulate a LAN controller over a broadband network interface to control said virtual local area network; and

coupling one or more thin client terminals to said virtual LAN for communicating with said thin client server mechanisms.

27. A computer usable medium having computer or processor readable program embodied therein, said program operable in a computer comprising a thin client server mechanism for:

configuring a thin client server mechanism with a broadband network interface;

emulating a LAN controller on said thin client server mechanism;

configuring one or more broadband edge switches for communication with one or more thin client terminals in said domain to form a virtual private network with said thin server mechanism; and

communicating LAN signals to said one or more thin client terminals over said virtual private network.

28. A computer usable medium having computer or processor readable program embodied therein, said program operable in a computer comprising a thin client server mechanism for:

forming a virtual local area network over said broadband;

configuring a thin client server mechanism to emulate a LAN controller over a broadband network interface to control said virtual local area network; and

coupling one or more of thin client terminals to said virtual LAN for communicating with said thin client server mechanisms.

29. A thin client network server mechanism, comprising:

a thin client network management module; and

a network interface mechanism operable with the thin client management and/or control module to provide a communications link between the server mechanism and one or more thin client computer systems, the network interface mechanism including a broadband network interface and a LAN emulation (LANE) module interoperable with the broadband network interface to provide a communications link between the server mechanism and one or more thin client computer systems over the broadband network.

30. A thin client server mechanism, comprising:

a thin client network management module; and

a network interface mechanism operable with the management and/or control module to provide a communications link between the server mechanism and one or more thin client computer systems, the network interface mechanism including a broadband network interface module and a LAN emulation (LANE) module interoperable with the broadband communications technology interface module to provide a LAN interface type environment for the broadband network.

31. A thin client network server mechanism, comprising:

a thin client network control module; and

a network interface mechanism operable with the thin client management and/or control module to provide a communications link between the server mechanism and one or more thin client computer systems, the network interface mechanism including a broadband network interface and a LAN emulation (LANE) module interoperable with the broadband network interface to provide a communications link between the server mechanism and one or more thin client computer systems over the broadband network.

32. A thin client server mechanism, comprising:

a thin client network control module; and

a network interface mechanism operable with the management and/or control module to provide a communications link between the server mechanism and one or more thin client computer systems, the network interface mechanism including a broadband network interface module and a LAN emulation (LANE) module interoperable with the broadband communications technology interface module to provide a LAN interface type environment for the broadband network.