Browse Prior Art Database

Role Reversal between Open Systems Interconnection Manager and Agent

IP.com Disclosure Number: IPCOM000112001D
Original Publication Date: 1994-Apr-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 76K

Publishing Venue

IBM

Related People

Allen, MO: AUTHOR [+5]

Abstract

Disclosed is a method for an Open Systems Interconnection (OSI) manager and an agent to switch roles. By definition of Common Management Information Protocol (CMIP) in OSI management, a system acting in the manager role initiates a request and another system acting in the agent role responds to that request. Usually the roles played by two interacting systems are static; they don't switch roles. A problem occurs when a system usually in the agent role needs to request some information from a system usually in the manager role. The normal flow does not fit naturally in this case.

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Role Reversal between Open Systems Interconnection Manager and Agent

      Disclosed is a method for an Open Systems Interconnection (OSI)
manager and an agent to switch roles.  By definition of Common
Management Information Protocol (CMIP) in OSI management, a system
acting in the manager role initiates a request and another system
acting in the agent role responds to that request.  Usually the roles
played by two interacting systems are static; they don't switch
roles.  A problem occurs when a system usually in the agent role
needs to request some information from a system usually in the
manager role.  The normal flow does not fit naturally in this case.

      A CMIP action is defined on the (usual) manager side such that
the (usual) agent side can initiate a request and it is guaranteed to
get the response back.  A mechanism is set up such that the agent
side knows the destination of such actions, either by default or by
being informed from the manager side.

      In this design, operations of this type are called operator
intervention requests.  There are two generic scenarios for such
requests:

1.  solicited - The operator intervention is related to a previous
    operation originated by the manager; the agent decides that an
    intervention is required in order to complete the previous
    operation.  The intervention request is directed to the manager
    which originated the operation.

          In order to achieve this, if a manager allows the agent to
    ask for operator intervention, it must attach its own (sender's)
    identification and a correlation number when issuing an action.
    The agent may decide to accept the action without questioning, or
    it may decide to ask the operator on the manager...