Event-driven network topology monitoring function

  • Authors:
  • W. Chao;W. Tsun

  • Affiliations:
  • Hewlett-Packard Corporation, Video Communications Division, P.O. Box 700713, San Jose, California;IBM Networking Hardware Division, P.O. Box 12195, Research Triangle Park, North Carolina

  • Venue:
  • IBM Systems Journal
  • Year:
  • 1996

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Abstract

This paper discusses the design of a topology management application. The application monitors the topology of point-to-point networks in which each network node is required to contain only local trunk information. To build and continuously update the topology map, information must be collected from network nodes. The challenge is to do this in real time without adversely consuming network bandwidth. By defining a clear set of conditions to determine whether polling or event monitoring should be used, this design makes it possible to realize the advantage of monitoring network topology by processing events. With the use of event monitoring, first, consumption of network bandwidth by network management traffic can be significantly reduced compared to a pure polling approach, and second, the topology map represents a continuous topology history.