Traffic data collection technique
First Claim
1. A network management system having a function of collecting traffic data at predetermined intervals from a switch having a plurality of traffic detectors provided for respective ones of line ports of the switch, comprising:
- a schedule table having a plurality of entries, in which traffic data collection events for respective ones of the traffic detectors are distributed at first predetermined intervals;
a scheduler for creating the schedule table at second predetermined intervals; and
a traffic data collection processor for sequentially accessing the plurality of entries of the schedule table to transmit traffic data collection requests to the traffic detectors depending on whether a traffic data collection event is registered in an accessed entry.
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Accused Products
Abstract
A network management system allowing traffic data collection not to overload switching equipment is disclosed. A schedule table has a plurality of entries, in which traffic data collection events for respective ones of traffic counters are distributed at intervals. A traffic data collection processor sequentially accesses the entries of the schedule table and, when a traffic data collection event is registered in an accessed entry, a traffic data collection request is transmitted to a corresponding traffic counter.
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Citations
16 Claims
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1. A network management system having a function of collecting traffic data at predetermined intervals from a switch having a plurality of traffic detectors provided for respective ones of line ports of the switch, comprising:
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a schedule table having a plurality of entries, in which traffic data collection events for respective ones of the traffic detectors are distributed at first predetermined intervals;
a scheduler for creating the schedule table at second predetermined intervals; and
a traffic data collection processor for sequentially accessing the plurality of entries of the schedule table to transmit traffic data collection requests to the traffic detectors depending on whether a traffic data collection event is registered in an accessed entry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for collecting traffic data at predetermined intervals from a switch having a plurality of traffic detectors provided for respective ones of line ports of the switch, comprising the steps of:
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storing a plurality of entries in a schedule table, in which traffic data collection events for respective ones of the traffic detectors are distributed at first predetermined intervals;
creating the schedule table at second predetermined intervals; and
sequentially accessing the plurality of entries of the schedule table; and
when a traffic data collection event is registered in an accessed entry, transmitting a traffic data collection request to a corresponding traffic detector. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A network management system having a function of periodically collecting traffic data at predetermined intervals from a switch having a plurality of traffic counters provided for respective ones of line ports of the switch, comprising:
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traffic counter processors provided for respective ones of the traffic counters, each of the traffic counter processors transmits a traffic data collection request to a designated one of the traffic counters and stores traffic data received from the designated traffic counter;
a schedule table for scheduling operations of the traffic counter processors;
a schedule table creation processor for providing a schedule time interval to each of the entries of the schedule table and assigning processor identifications of the traffic counter processors to entries equally spaced in the schedule table;
a collection cycle timer for activating schedule table creation processing of the schedule table creation processor in a predetermined period of time;
a schedule execution processor for activating the traffic counter processors depending on the processor identifications registered in the schedule table; and
a schedule execution timer for activating the schedule execution processor in a predetermined period of time, wherein traffic counter collection requests are transmitted to the switch uniformly for a predetermined time period.
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Specification