Browse Prior Art Database

Passthru Function for Network Management Data in a Computer Network

IP.com Disclosure Number: IPCOM000106592D
Original Publication Date: 1993-Nov-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 2 page(s) / 112K

Publishing Venue

IBM

Related People

Allen, MO: AUTHOR [+2]

Abstract

Disclosed is a method for transporting network management data between a network management host (typically a mainframe computer) and work-stations or terminal controller devices. This method utilizes a network management passthru node (typically a workstation or small computer), which cooperates with the network management host to provide network management services for "downstream" devices which are connected to the passthru node but not directly to the host. The downstream equipment (typically older workstations or terminal controller devices) communicate with the network management passthru node, just as they would if they were connected directly with the network management host.

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This is the abbreviated version, containing approximately 51% of the total text.

Passthru Function for Network Management Data in a Computer Network

      Disclosed is a method for transporting network management data
between a network management host (typically a mainframe computer)
and work-stations or terminal controller devices.  This method
utilizes a network management passthru node (typically a workstation
or small computer), which cooperates with the network management host
to provide network management services for "downstream" devices which
are connected to the passthru node but not directly to the host.  The
downstream equipment (typically older workstations or terminal
controller devices) communicate with the network management passthru
node, just as they would if they were connected directly with the
network management host.  The downstream equipment is connected in
this way, via an intermediate passthru node, rather than directly
with the mainframe computer as originally designed, in order to take
advantage of more recent communications techniques.  For example,
older equipment may be incapable of connecting directly to a
high-speed transmission facility, but it can be connected indirectly
via the passthru computer.  The passthru computer achieves this
indirect connectivity by acting as a surrogate for the downstream
equipment; it appears to the host, connected to the passthru computer
via the high-speed transmission facility, that the downstream
resources are actually located at the passthru computer.  The
downstream resources are connected to the passthru computer via the
slower transmission facilities which they support.  It appears to
these downstream resources that the passthru computer is the host.
The passthru computer must emulate the behavior of the older
equipment in order to work correctly with the host computer upstream,
and it must emulate the behavior of the host computer in order to
work correctly with the older equipment downstream.  This emulation
includes network management functions as well as data transmission
functions.

      The passthru node emulates the behavior of the network
management host by sending each downstream device the appropriate
network management initialization commands, indicating that it is a
network management host.  When the passthru node itself receives a
network management initialization command from the real network
management host, it provides the host with a list of the downstream
device which it serves.  It also informs the host of any updates to
this resource directory as devices are added or deleted from the
downstream network.

      When a network manage...