Method and apparatus for testing an interactive network board in a local area network (LAN).

• US 5,438,528 A
• Filed: 09/29/1994
• Issued: 08/01/1995
• Est. Priority Date: 11/18/1992
• Status: Expired due to Term

• Current Assignee: Canon Information Systems Incorporated (Canon Inc.)
• Original Assignee: Canon Information Systems Incorporated (Canon Inc.)
• Inventors: Kalwitz, George A., Russell, William C., Luther, Willis J., Takahashi, Natsuko, Emerson, H. Brad
• Primary Examiner(s): Ramirez, Ellis B.
• Assistant Examiner(s): Wachsman, Hal D.
• Application Number:
  US08/314,466
• Time in Patent Office: 306 Days
• Field of Search: 364/514, 364/580, 371/20.1, 371/20.4, 371/20.6, 371/23, 371/25.1, 371/29.1, 370/13, 370/17, 370/85.8, 395/909, 395/917, 395/275
• US Class Current: 702/119
• CPC Class Codes: G06F 11/22 Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
• CPC Class Codes: G06F 11/2273 Test methods
• CPC Class Codes: G06F 11/2294 by remote test
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

Method and apparatus for testing an interactive network board having a local area network interface, a Small Computer System Interface, and a test interface comprises supplying power to the interactive board, and performing a power-on self-test program within the interactive board. At the completion of the power-on self-test, a test program is loaded into a RAM on the interactive network board through the test interface, and the test program resident in the RAM is activated. The test program is executed and checkpoint test results are outputted after completion of the test program. A test computer is provided to receive the checkpoint test result and may script additional tests in accordance with checkpoint test results. Preferably, at the completion of the test program, ROM-resident firmware is downloaded into the RAM on the interactive board, and the firmware is loaded from the RAM into a ROM on the interactive network board.

Claims

1. A method for testing an interactive network board having a LAN interface, an SCSI interface, and a test interface, comprising the steps of:

loading a test program, which is designed to exercise the LAN interface and the SCSI interface and to monitor the LAN interface and the SCSI interface for abnormalities, into a RAM on the interactive network board;

activating the test program loaded in the RAM;

executing the test program on the interactive network board;

providing a test result after completing the test program;

providing a test computer, coupled to the interactive network board via the test interface, to detect the test result;

scripting an additional test program in accordance with the test result and loading the additional test program into the RAM; and

executing the additional test program on the interactive network board, and providing an additional test result after completing execution of the additional test program.

2. A method according to claim 1, further comprising the steps of:

downloading an operational program into the RAM on the interactive network board after completing the additional test program; and

loading the operational program from the RAM into a PROM disposed on the interactive network board.

3. A method according to claim 1, further comprising the step of performing a power-on self-test program within the interactive network board before said loading step.

4. A method according to claim 3, wherein the step of performing includes a step of monitoring, on the interactive network board, the test interface for an instruction set during a predetermined time interval after the completion of the power-on self-test.

5. A method according to claim 1, wherein the loading step includes a step of downloading a test program stored in the test computer through the test interface to the interactive network board.

6. A method according to claim 1, wherein the step of providing a test result includes the step of sending a test result to the test computer for verification therein, and further including the step of outputting an error signal from the test computer when the test result is not output from the board within a predetermined time period.

7. A method according to claim 1, wherein the step of executing the test program includes the step of receiving data across the SCSI interface and sending confirmation of a receipt of the data to the test computer.

8. A method according to claim 1, wherein the step of executing the test program includes the step of receiving data across the LAN interface and sending a confirmation of a receipt of the data to the test computer.

9. A method according to claim 1, wherein the step of executing the test program includes the steps of:

sending a signal from the interactive network board across the LAN interface to a peripheral to cause the peripheral to be configured as a LAN peripheral;

receiving a response from the configured peripheral; and

sending a confirmation of a receipt of the response from the board to the test computer.

10. A method according to claim 1, wherein the step of executing the test program includes the steps of:

sending a signal from the interactive network board across the SCSI interface to a peripheral to cause the peripheral to be configured as a LAN peripheral;

receiving a response from the configured peripheral; and

sending a confirmation of a receipt of the response from the board to the test computer.

11. A method according to claim 1, wherein the interactive network board includes a ROM which stores a standard program of normal network operability, and further comprising the step of monitoring whether the test program has been received through the test interface, wherein in the case the test program is not received through the test interface within a predetermined time after power-up, the standard program is loaded from ROM into RAM and the interactive network board carries out normal network operations.

12. A method according to claim 1, wherein the interactive network board includes a ROM which stores a standard program of normal network operability, and further comprising the step of concluding testing and the step of issuing a re-boot command via the test interface for the interactive network board to commence normal network operations, wherein in response to the re-boot command, the standard program is loaded from ROM into RAM and the interactive network board carries out normal network operations.

13. A method for testing an interactive network board having a LAN interface, an SCSI interface, and a test interface, comprising the steps of:

loading a test program, which is designed to exercise the LAN interface and the SCSI interface and to monitor the LAN interface and the SCSI interface for abnormalities, into a RAM on the interactive network board;

executing the test program loaded in the RAM;

providing a test result after completing the test program;

providing a test computer, coupled to the board via the test interface, to detect the test result;

downloading ROM firmware into the RAM after completing the test program; and

loading the ROM firmware from the RAM into a PROM on the interactive network board.

14. A method according to claim 13, wherein the step of downloading includes the step of downloading ROM firmware which comprises a plurality of independently executable modules.

15. A method according to claim 13, wherein the step of loading the ROM firmware includes the steps of erasing memory locations in the ROM and storing the ROM firmware into the erased memory locations.

16. A method according to claim 13, wherein the step of downloading includes the step of downloading a MAC address with said ROM firmware.

17. A method according to claim 13, wherein the interactive network board includes a ROM which stores a standard program of normal network operability, and further comprising the step of monitoring whether the test program has been received through the test interface, wherein in the case the test program is not received in the RAM within a predetermined time after power-up, the standard program is loaded from ROM into RAM and the interactive network board carries out normal network operations.

18. An apparatus for testing an interactive network board having a LAN interface, an SCSI interface, and a test interface, comprising:

a ROM disposed on the interactive network board for storing process steps;

a processor disposed on the interactive network board for processing the stored process steps;

a RAM disposed on the interactive network board for receiving and for storing operational instructions;

a first test station for sending test programs, which are designed to exercise the LAN interface, and the SCSI interface and to monitor the LAN interface and the SCSI interface for abnormalities, to the interactive network board and for receiving test results from the interactive network board through the test interface; and

a second test station for receiving requests for test data from the interactive network board, and for sending test data to said interactive network board through either said LAN interface or said SCSI interface;

wherein said processor processes said process steps stored in the ROM upon receiving power from a power supply, and wherein said first test station receives a process test result of said stored process steps via the test interface, and wherein said first test station sends a test program to said RAM, detects a test result of said test program, and provides an indication of a test failure in accordance with the detected test result, and

further wherein said processor requests test data from said second test station, said second test station sends the test data to said processor, and a confirmation of receipt of the test data is sent to said first test station via the test interface.

19. An apparatus according to claim 18, wherein the interactive network board is coupled to a peripheral device.

20. An apparatus according to claim 18, wherein the RAM comprises a dynamic RAM.

21. An apparatus according to claim 18, wherein the ROM comprises a flash EPROM.

22. An apparatus according to claim 18, wherein the first and second test stations each comprise a personal computer.

23. An apparatus according to claim 18, wherein the second test station emulates a LAN peripheral device.

24. A method for testing an interactive network board having a LAN interface, an SCSI interface, and a test interface, comprising the steps of:

loading a test program, which is designed to exercise the LAN interface and the SCSI interface and to monitor the LAN interface and the SCSI interface for abnormalities, into a RAM via the test interface on the interactive network board;

executing the test program from RAM so as to exercise the LAN interface and the SCSI interface and so as to detect abnormalities in the LAN interface and SCSI interface;

providing a test result which indicates whether abnormalities were detected;

scripting an additional test program in accordance with the test result received;

loading the additional scripted test program into the RAM on the interactive network board; and

executing the additional test program.

25. The method according to claim 24, further comprising the step of executing a standard program of normal network operability stored in a PROM on the interactive network board in the case the test program is not received through the test interface after a predetermined time has elapsed, wherein, after executing the stored program, the interactive network board carries out normal network operability on the LAN interface and the SCSI interface.

26. A method according to claim 24, further comprising the step of sending a signal to reinitialize the interactive network board upon completing the test program.

27. A method according to claim 24, further comprising the steps of downloading operational ROM firmware into a PROM on the interactive network board after the test program has been completed and sending a signal to the interactive network board to reinitialize using the downloaded operational ROM firmware.

28. An interactive network board having a test interface, a LAN interface, and an SCSI interface, said interface network board comprising:

a PROM for storing a standard program of normal network operability and a power-up self-test program;

a RAM for receiving and for storing operational programs; and

a processor for executing the operational programs stored in said RAM and for executing, upon power-up, the power-up self-test program stored in said PROM, wherein after executing the power-up self-test program, the processor monitors the test interface for a predetermined period and wherein, if a test program is received through the test interface within the predetermined period, the processor enters a test mode in which test programs are downloaded to said RAM and executed by said processor so as to carry out tests of network operability on said LAN interface and said SCSI interface, and wherein, if the test program is not received through the test interface within the predetermined period, the stored program stored in said ROM is downloaded to said RAM and executed by said processor so as to carry out normal network operability on said LAN interface and said SCSI interface.