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Asynchronous protocol for computer system manager

  • US 5,257,384 A
  • Filed: 09/09/1991
  • Issued: 10/26/1993
  • Est. Priority Date: 09/09/1991
  • Status: Expired due to Term
First Claim
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1. A protocol for communicating messages between a system manager for a computer system and a remote facility asynchronously connected with said system manager, said protocol comprising:

  • means for determining whether said system manager is ready to exchange messages with said remote facility;

    means for determining whether said remote facility is ready to exchange messages with said system manager; and

    means for exchanging messages between said system manager and said remote facility;

    said means for exchanging messages comprising;

    means for transmitting a command message which includes a first field for identifying a command transmitted by said command message and a second field for identifying said command message; and

    means for transmitting a command reply message which includes a first field for identifying said command to which said command reply message is in response to, a second field for matching said command reply message to said command message and a third field for transmitting a response to said command message,said means for transmitting a command reply message further comprising;

    means for generating said first field of said command reply message to be a variant of said first field of said command message, said first field of said command reply message identifying said transmitted command and that said third field is a response to said transmitted command; and

    means for generating said second field of said command reply message to match said second field of said command message, said second field of said command message identifying the transmitted command and that said third field is a response to said transmitted command;

    said first field of said command message and said first field of said command reply message each comprised of a plurality of bits, said plurality of bits of said first field of said command message identifying the transmitted command and the high bit of said plurality of bits of said first field of said command reply message is set to identify said third field as a response and said remaining bits of said first field identifies the command being responded to;

    wherein said remote facility transmits command messages to said system manager and said system manager transmits command message responses to said remote facility, said command messages being issued by said remote facility to support activity of said system manager; and

    said command message is a reboot command message and said remote facility transmits said command message to said system manager to initiate rebooting of said system manager, said command message further including a third field for specifying a type of reboot said system manager is to perform.

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