Automatic reconfiguration system for change in management servers having protocol destination addresses

• US 6,353,854 B1
• Filed: 10/01/1998
• Issued: 03/05/2002
• Est. Priority Date: 10/01/1998
• Status: Expired due to Term

• Current Assignee: Lenovo PC International Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Ellison, Brandon John, Cromer, Daryl Carvis, Locker, Howard Jeffrey, Kern, Eric Richard, Ward, James Peter
• Primary Examiner(s): Maung, Zarni
• Application Number:
  US09/164,657
• Time in Patent Office: 1,251 Days
• Field of Search: 709/224, 709/220, 709/221, 709/230, 714/4, 714/31
• US Class Current: 709/224
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/0886 Fully automatic configuration
• CPC Class Codes: H04L 63/065 for group communications cryptographic mechanisms or cryptographic arrangements for key management involving conference or group key H04L9/0833
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/164 Adaptation or special uses of UDP protocol
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A client on a network is provided with auxiliary low power logic, at the network adoptor, that is always active and simulates network traffic (e.g., Ethernet format) normally sent under control of the main client system processor(s). This logic collects client status information and reports to the network manager, even when the system CPU is powered down, information which allows the network manager to exercise broader control and perform maintenance and upgrades which would otherwise require a dialog with the user and/or limit maintenance and reconfiguration of the client system to off-hours activity.

Claims

1. A personal computer client system, for a data network including at least one personal computer client system and a server having an internet protocol destination address, comprising:

a central processing unit (CPU);

memory;

a non-volatile memory storage device for storing the destination address of the server; and

a network adapter with a reception portion connected to the data network for receiving network packet signals on the data network from the server in a predefined analog format and decoding the network packet signals having the internet protocol address of the server to a digital format and providing the internet protocol address of the server to the memory storage device to store the destination address of the server.

2. The personal computer client system according to claim 1, wherein the data network conforms to the Ethernet specification and the network packet signals on the network are digitally encoded analog signals.

3. The personal computer client system according to claim 1, further including auxiliary logic as a part of the network adapter for applying network packet signals periodically to indicate selected state information regarding the personal computer client system.

4. The personal computer client system according to claim 1, further including auxiliary logic as a part of the network adaptor and electrically connected to be powered and active during a state of less than full power being provided to the CPU of the personal computer client system to detect network packet signals received by the personal computer client system that has data including the server'"'"'s internet protocol destination address.

5. The personal computer client system according to claim 4, wherein the network adaptor provides the data including the server'"'"'s internet protocol destination address to the memory storage device for storing the data.

6. The personal computer client system according to claim 1, wherein the network adaptor includes a physical layer connected to the data network for receiving and transmitting network data packets to and from the server on the network side of the physical layer and for transmission of received network data packets, including data related to the server'"'"'s internet protocol destination address, on the client side of the physical layer on a media independent interface bus to an auxiliary logic as a part of the network adaptor to detect network data packets received by the personal computer client system that have data including the server'"'"'s internet protocol destination address.

7. The personal computer client system according to claim 6, further including a non-volatile storage device for storing data including the server'"'"'s internet protocol destination address.

8. The personal computer client system according to claim 7, wherein the auxiliary logic includes a micro controller having state machines for managing data packet reception, data packet transmission and non-volatile storage device transmission.

9. The personal computer client system according to claim 8, further including in the personal computer client system a PCI bus, an ISA bus, a PCI/ISA bridge, and wherein the micro controller has a state machine for managing bus transmission between the network adaptor and the PCI bus and the ISA bus.

10. A personal computer client system, for a data network including at least one personal computer client system and a server, having an internet protocol destination address, connected to each other through a network communication system, comprising:

a central processing unit (CPU);

memory;

a memory controller connecting the memory to the CPU;

a PCI bus;

a PCI bridge connecting the PCI bus to the memory controller and the CPU;

an ISA bus;

a PCI/ISA bridge connecting the ISA bus to the PCI bus;

a power management device connected to a power supply device;

a network adapter connected to the PCI bus and the network communication system;

a physical layer as a part of the network adapter connected to the network communication system to receive network packet signals from the server;

a media access controller as a part of the network adapter connected to the PCI bus;

a media independent interface (MII) bus connected to the physical layer and the media access controller;

an EEPROM for storing the destination address of the server; and

a logic module connected to the EEPROM and to the MII bus for receiving and detecting network packet signals having data related to the internet protocol destination address of the server and providing the data related to the internet protocol address of the server to the EEPROM to store the destination address of the server.

11. A personal computer client system, for a local area network (LAN) including at least one personal computer client system and a server having an internet protocol destination address, comprising:

a central processing unit (CPU);

memory;

a non-volatile memory storage device for storing the destination address of the server; and

a network adaptor with a reception portion connected to the data network for receiving network packet signals on the data network from the server in a predefined analog format and decoding the network packet signals having the internet protocol address of the server to a digital format and providing the internet protocol address of the server to the memory storage device to store the destination address of the server.

12. The personal computer client system according to claim 11, further including auxiliary logic as a part of the network adaptor for applying network packet signals periodically to indicate selected state information regarding the personal computer client system.

13. The personal computer client system according to claim 11, further including auxiliary logic as a part of the network adaptor and electrically connected to be powered and active during a state of less than full power being provided to the CPU of the personal computer client system to detect network packet signals received by the personal computer client system that has data including the servers internet protocol destination address.

14. The personal computer client system according to claim 11, wherein the network adaptor includes a physical layer connected to the LAN network for receiving and transmitting network data packets to and from the server on the network side of the physical layer and for transmission of received network data packets, including data related to the server'"'"'s Internet protocol destination address, on the client side of the physical layer on a media independent interface bus to an auxiliary logic as a part of the network adaptor to detect network data packets received by the personal computer client system that have data including the server'"'"'s internet protocol destination address.