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Method for discovering network device

  • US 7,729,294 B2
  • Filed: 04/24/2007
  • Issued: 06/01/2010
  • Est. Priority Date: 12/10/2006
  • Status: Active Grant
First Claim
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1. A method for discovering a network device, wherein a discovery procedure is executed via a Network Management Server (NMS) to discover at least one of the other network devices within a network system, the method executed by the NMS comprising:

  • (A) starting the discovery procedure;

    (B) generating a discovery packet which comprises a command for requesting a network device to send back a corresponding Media Access Control (MAC) address;

    (C) transmitting the discovery packet;

    (D) receiving a response packet which is sent back by the network device corresponding to the discovery packet;

    (E) analyzing the response packet for collecting the MAC address in the response packet; and

    (F) updating a device information table according to the MAC address for identifying the network device;

    wherein the step (E) further comprises the following steps;

    (E1) checking if a signature included in the response packet is valid;

    if yes, go to step (E2);

    if not, go to step (E5);

    (E2) checking if a protocol version included in the response packet is valid;

    if yes, go to step (E3);

    if not, go to step (E5);

    (E3) checking if an interface version included in the response packet is valid;

    if yes, go to step (E4);

    if not, go to step (E5);

    (E4) collecting the MAC address included in the response packet, and going to the step (F); and

    (E5) discarding the response packet.

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