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Network terminal apparatus, communication overload avoiding method and program

A network terminal and network technology, which is applied in the direction of data exchange, electrical components, and transmission systems through path configuration. It can solve problems such as difficulty in applying ordinary home network equipment, adverse effects of delay, and user misunderstandings as failures.

Inactive Publication Date: 2006-02-08
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned prior art has the following problems: since it requires the judgment of a network manager with professional knowledge, and it is necessary to add a device with a filtering function to the network of the source of the attack, it is difficult to apply to the network equipment used in ordinary homes
[0005] In addition, in a network device that processes image data, if the CPU is occupied by communication processing due to the overload of communication processing, and there is an adverse effect that the main processing other than communication processing (processing of image data, etc.) is delayed, there may be Possibility of misinterpreting it as a malfunction by the user

Method used

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  • Network terminal apparatus, communication overload avoiding method and program
  • Network terminal apparatus, communication overload avoiding method and program
  • Network terminal apparatus, communication overload avoiding method and program

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Embodiment Construction

[0036] (Hardware configuration of communication overload state avoidance device)

[0037] FIG. 1 is a diagram showing a main hardware configuration of a network terminal device according to an embodiment of the present invention. This network terminal device is referred to as a communication overload state avoiding device 10 in the figure, and includes: a CPU (Central Processing Unit: Central Processing Unit) 11, a memory 12, an interrupt controller 13, a LAN chip 14, a LAN I / F (interface : interface) 15, and communicates with a communication host 16 and the like via an IP (Internet Protocol: Internet Protocol) network 17.

[0038] This hardware configuration is a general configuration. The memory 12 has an area serving as a receive buffer for temporarily holding received data, and stores a program describing the communication overload state avoidance method of the present invention. The configuration is such that by executing the program by the CPU, the communication overloa...

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Abstract

A network terminal apparatus of the present invention includes an overload condition detecting unit detecting communication overload condition and an overload condition completion detecting unit detecting recovery from an overload condition, invalidates data received by LAN chip when an overload condition is detected, and releases said invalidation when recovery from an overload condition is detected.

Description

technical field [0001] The present invention relates to a network terminal device that eliminates adverse effects caused by communication overload, and particularly relates to a network terminal device that processes image data at home. Background technique [0002] Generally speaking, when the communication on the network terminal device connected to the IP network falls into an overloaded state, due to the increased load of communication processing below the IP layer in the network terminal device, most of the processing capacity of the CPU is occupied by communication processing. Therefore, not only communication processing but also other processing are adversely affected. [0003] In addition, as an extreme example of a communication overload state, a case where a DoS attack (Denial of Service attack: Denial of Service attack) is received may be considered. As a technique for avoiding communication overload caused by a DoS attack, for example, there is an unauthorized a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L29/06
CPCH04L63/1458
Inventor 渡边崇弘滨木贵之
Owner PANASONIC CORP