Communication system concentrator configurable to different access methods

• US 5,301,303 A
• Filed: 04/16/1991
• Issued: 04/05/1994
• Est. Priority Date: 04/23/1990
• Status: Expired due to Term

• Current Assignee: Hewlett-Packard Company (HP Inc.)
• Original Assignee: Chipcom Corp. (HP Inc.)
• Inventors: Kim, Yongbum, Shohet, Yuval, Ramelson, Brian, Cook, John L. III, Carmi, Ilan, Ben-Meir, Samuel, Herman, Alex, Bartolini, David, Linde, Yoseph, Saussy, Gordon, Abraham, Menachem, Hart, Ira, Zhovnirovski, Igor, Horowitz, Steven E., Rehberg, Richard
• Primary Examiner(s): Anderson, Lawrence E.
• Assistant Examiner(s): AN, MENG AI T
• Application Number:
  US07/687,590
• Time in Patent Office: 1,085 Days
• Field of Search: 395/800, 395/500, 395/200, 395/275, 364/242.95, 364/242.94, 364/240.2
• US Class Current: 709/223
• CPC Class Codes: H04L 12/46 Interconnection of networks
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: Y10S 370/908 Local area network

Abstract

A local net area network, or LAN, configuration is provided with a multiple generic LAN channel architecture which can be logically and dynamically changed. The configuration control can be applied to each module of the network and to each port of a module of a LAN hub. The architecture provides multiple LAN protocols to be used simultaneously, as needed, through protocol specific functions. Industry standard protocol such as: token bus, token ring, and fiber distributed data interface (FDDI), can be implemented using the generic channel architecture and its characteristics providing respective network functions. The architecture also provides a digital collision detection method and provides information necessary for precise network statistics monitoring. The token passing ring architecture provides a logical ring formation within the generic channel. A token passing bus architecture uses modified Ethernet™ architecture, and a hub management provides control for the generic multichannel and the LAN management provides protocol dependent network management. The architecture provided allows multiple hub management entities via hub mastership arbitration to provide a unique master for the hub management function.

Claims

1. A communication system concentrator, comprising:

a plurality of media modules having one or more ports, each media module being provided for a physical local area network media type, each media module being provided for a specific network access method, said one or more ports of each media module offering a specific local area network media connection providing for a specific access method on a specific physical LAN media type;

a generic passive backplane with multiple physical circuits which are assigned for data exchange between said plurality of media modules, said media modules plugging into said generic passive backplane for connection to said multiple physical circuits; and

management means, connected to the generic passive backplane, for configuring and reconfiguring said multiple physical circuits to provide independent physical communications paths between said plurality of media modules of a like network access method establishing a physical layer network connection between said plurality of media modules of a like access method on any one of said independent physical communication paths, including means for establishing one or more of an ETHERNET network access method on any one of said independent physical communication paths, a token ring network access method on any one of said independent physical communication paths, a token bus network access method on any one of said independent physical communication paths and a fiber distributed data interface network access method on any one of said independent physical communication paths wherein one or more media access method is established on said generic passive backplane, said backplane providing multiple, simultaneous data transfer on different ones of said independent physical communication paths of said generic passive backplane.

2. A communication system concentrator according to claim 1, wherein:

said management means prevents incorrect configuration of unlike network access methods on any one of said independent physical communications paths.

3. A communication system concentrator according to claim 1, wherein:

each one of said plurality of media modules includes switching means for isolating said one or more ports of said each one of said plurality of media modules from said generic passive backplane for simultaneous and separate communication.

4. A communication system concentrator according to claim 1, wherein:

said one or more ports of each media module is individually selectably connected to said independent physical communication paths of said generic passive backplane.

5. A communication system concentrator according to claim 1, wherein:

each one of said plurality of media modules includes module switching means for connecting or disconnecting said each one of said plurality of media modules with said generic passive backplane.

6. A communication system concentrator according to claim 5, wherein:

said management means configures said multiple physical circuits as physical paths of a specific network access method if said multiple physical circuits are not already configured to said specific network access method when said module switching means connects said each of said plurality of media modules to said generic passive backplane.

7. A communication system concentrator according to claim 5, wherein:

each one of said plurality of media modules operates independently of said independent physical communication paths upon said module switching means disconnecting said each one of said plurality of media modules from said generic passive backplane.

8. A communication system concentrator according to claim 5, wherein:

said module switching means creates a logical network topology by selectively connecting and disconnecting said media modules form said generic passive backplane.

9. A communication system concentrator according to claim 5, wherein:

said module switching means includes hardware switches controlled by software.

10. A communication system concentrator according to claim 5, wherein:

each one of said plurality of media modules includes port switching means for connecting and disconnecting said one or more ports of each one of said plurality of media modules to said generic passive backplane; and

connecting and disconnecting said one or more ports of one of said plurality of media modules to said one or more ports of another said one of said plurality of media modules; and

for isolating connected said one or more ports of said each one of said plurality of media modules from said generic passive backplane for communication only between connected said one or more of said each one of said plurality of media modules.

11. A communication system concentrator according to claim 10, wherein:

said port switching means creates a logical network topology by selectively connecting and disconnecting ports from said generic passive backplane.

12. A communication system concentrator according to claim 10, wherein:

said port switching means includes hardware switches controlled by software.