Maintenance Operations Protocol

Maintenance Operations Protocol

The Maintenance Operation Protocol (MOP) is used for utility services such as uploading and downloading system software, remote testing and problem diagnosis. It was a proprietary protocol of Digital Equipment Corporation. MOP frames can be one of the following commands:

  • [memory load data] Contains memory load data.
  • [mem load request] Request fort memory load segment.
  • [mem load w/addr] Memory load with transfer address.
  • [par load w/addr] Parameter load with transfer address.
  • [dump service req] Request for assistance with dump operation.
  • [mem dump request] Request for next memory dump segment.
  • [memory dump data] Contains memory dump data.
  • [dump completed] Acknowledgment of dump completion.
  • [volunteer assist] Offer of dump/load/loop assistance.
  • [request program] Request for system or loader program.
  • [rem boot request] Request for boot program.
  • [remote ID reqst] Request for remote console identification.
  • [remote system ID] Remote console identification information.
  • [counters request] Request for communication information counters.
  • [counters reply] Communication information counters.
  • [reserve console] Remote console in reserved state.
  • [release console] Release of remote console from reserved state.
  • [rem console poll] Poll of remote console for status.
  • [rem console rply] Response to remote console poll.
  • [loopback request] Request to loopback enclosed data.
  • [loopback reply] Response to loopback request with data.

See also

External links

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