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METHOD OF AVOIDING A PACKET STORM WHEN MULTIPLE DEVICES ARE QUERYING FOR INFORMATION FROM THE SAME SET OF NETWORKED RESOURCES

IP.com Disclosure Number: IPCOM000008734D
Original Publication Date: 1998-Jun-01
Included in the Prior Art Database: 2002-Jul-08
Document File: 3 page(s) / 206K

Publishing Venue

Motorola

Related People

Victoria Younginer: AUTHOR [+5]

Abstract

This is a method of avoiding the problems caused by excessive communication between net- worked devices that must request status information from other devices on their networks, based on certain events. This method requires the devices that must query for remote status information to set up a list of devices from which information is needed. Then, as the device waits to send its queries, it monitors the network traffic. If it detects a query response from one of the devices in its pending query list, then it will use the infomration from the response to satisfy its own need, and remove that device from its list.

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MOTOROLA Technical Developments

METHOD OF AVOIDING A PACKET STORM WHEN MULTIPLE DEVICES ARE QUERYING FOR INFORMATION FROM

THE SAME SET OF NETWORKED RESOURCES

by Victoria Younginer, Art Fumarolo, Keith Haugen, Brett Jackson and David Kiefer

ABSTRACT

  This is a method of avoiding the problems caused by excessive communication between net- worked devices that must request status information from other devices on their networks, based on certain events. This method requires the devices that must query for remote status information to set up a list of devices from which information is needed. Then, as the device waits to send its queries, it monitors the network traffic. If it detects a query response from one of the devices in its pending query list, then it will use the infomration from the response to satisfy its own need, and remove that device from its list.

  The monitoring of queries and responses by all devices insures that each device is provided with the necessary information about the other network devices in an efficient manner. This solution reduces the amount of network trafftc overall by eliminating redundant queries. It is particularly useful in the case of a massive initialization of the network.

BACKGROUND

  As technology becomes increasingly network oriented, with devices dispersed throughout these networks, technologists need to be careful to avoid overwhelming a network at any given time with excess communication. The Motorola Console system is an example of a network consisting of many devices. Network elements such as the console position controller must communicate with radio channel controlling devices, trunking system interface devices and other console position con- trollers regularly in order to perform its functions.

  This publication is the result of an invention designed to enable the console position controllers to gather information from the other devices within

the console system based on the needs of the console position, The problems faced are related to many console positions initializing and requesting information at the same time.

  This solution is universal enough that other networked devices will be able to use this algorithm in order to improve their own performance. Some other types of networks that might utilize this type of algorithm are: Computer Networks when deter- mining the status of peripheral devices such as printers and fax machines, Communications Networks determining the status of remote switches and lines, or even Networked Production Factories in determining the status of the different devices that are part of the production network.

  This solution is designed specifically to allow for all the information to be transmitted and received in a minimum amount of time, by using query/response pairs most efficiently by all the devices involved. By monitoring the queries and responses at all the devices, one can eliminate duplication of effort by each device and reduce the waiting time of t...