Apparatus and method for monitoring network
AssigneeFujitsu Limited
InventorSatoshi Imai
Life of this patent
Estimating the term…
Abstract
A network monitoring apparatus retrieves packets flowing on a path to be monitored on a network using a packet capturing unit. A packet analyzing unit analyzes the retrieved packets. Although the network monitoring apparatus discards some of the packets using a sampling unit, a sampling rate is determined by a sampling-rate regulating unit. A resource-usage-amount measuring unit measures how many resources are actually used inside the network monitoring apparatus and the sampling rate determined by the sampling-rate regulating unit is based on a resource usage amount.
Claims7
A computer program product having a computer readable medium including programmed instructions executed by a network monitoring apparatus, the instructions comprising:
- retrieving packets flowing on a path to be monitored on a network;
- analyzing the packets retrieved at the retrieving;
- measuring a usage amount of resources that are actually used by the network monitoring apparatus;
- and
- regulating, upon measurement results at the measuring exceeding predetermined threshold values, a sampling rate indicating a percentage of the packets on the path that are analyzed at the analyzing such that the measurement results at the measuring approach predetermined target values.
A method for monitoring a network in a network monitoring apparatus connected the network, comprising:
- retrieving packets flowing on a path to be monitored on the network;
- analyzing the packets retrieved at the retrieving;
- measuring a usage amount of resources that are actually used by the network monitoring apparatus;
- and
- regulating, upon measurement results at the measuring exceeding predetermined threshold values, a sampling rate indicating a percentage of the packets on the path that are analyzed at the analyzing such that the measurement results at the measuring approach predetermined target values.
A network monitoring apparatus, comprising:
- a packet retrieving unit that retrieves packets flowing on a path to be monitored on a network;
- a packet analyzing unit that analyzes the packets retrieved by the packet retrieving unit;
- a resource-usage-amount measuring unit that measures a usage amount of resources that are actually used by the network monitoring apparatus;
- and
- a sampling-rate regulating that regulates, upon measurement results by the resource-usage-amount measuring unit exceeding predetermined threshold values, a sampling rate indicating a percentage of the packets on the path that are analyzed by the packet analyzing unit such that the measurement results by the resource-usage-amount measuring unit approach predetermined target values.
Dependencies are inferred from the claim text.