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Mechanism to upgrade system capability without affecting service

  • US 7,797,694 B2
  • Filed: 09/19/2005
  • Issued: 09/14/2010
  • Est. Priority Date: 09/19/2005
  • Status: Active Grant
First Claim
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1. A method of upgrading system capability of a communications network, the method comprising:

  • initiating a transfer of at least one first set of system capability instructions from a first memory to a target processor;

    determining whether the at least one first set of system capability instructions is valid prior to completing the transfer of the at least one first set of system capability instructions;

    wherein determining whether the at least one first set of system capability instructions is valid comprises determining whether a header line of a first frame transferred from the first memory to the target processor is valid and the first frame transferred from the first memory to the target processor is a frame that was loaded last onto the first memory;

    if the at least one first set of system capability instructions is determined to be valid, completing the transfer of the at least one first set of system capability instructions to the target processor; and

    if the at least one first set of system capability instructions is not valid;

    ceasing the transfer of the at least one first set of system capability instructions from the first memory to the target processor; and

    transferring at least one second set of system capability instructions from a second memory to the target processor.

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