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Method for detecting operating state of default gateway and apparatus therefor

A default gateway and working state technology, applied in the direction of network connection, data exchange network, digital transmission system, etc., can solve the problem of reducing the transmission performance of the network system, routers or switches can not detect the failure of the default gateway in time, loss of data packets, etc., to achieve The effect of improving transmission performance

Inactive Publication Date: 2005-11-02
刘纳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] In summary, it can be seen that in the prior art based on the "physical port + VLAN ID + ARP" method of detecting the working state of the default gateway, after the default gateway fails, the router or switch cannot detect the failure of the default gateway in time. It is also impossible to switch to the backup default gateway in time, which may cause some data packets that need to be forwarded to be lost during this period of time when the failure of the default gateway is not detected in time and the switch is switched to the backup default gateway, thereby reducing the transmission performance of the network system

Method used

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  • Method for detecting operating state of default gateway and apparatus therefor
  • Method for detecting operating state of default gateway and apparatus therefor
  • Method for detecting operating state of default gateway and apparatus therefor

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Embodiment Construction

[0042] The present invention detects the method and system thereof of default gateway working state to adopt in the network device to carry out state detection to the physical port directly connected with default gateway; , it is considered that the default gateway directly connected to the physical port is working normally; and if the physical port is detected to be in a fault state (the flag of the physical port is Down when the physical port is in a fault state), it is considered to be directly connected to the physical port The working status of the default gateway is abnormal.

[0043] Such as figure 1 As shown, this figure is a simple structural block diagram of the connection between devices in the method and device for detecting the working state of the default gateway in the present invention. In the figure, it is assumed that the network device is an Ethernet switch 1. Of course, the network device can also be other devices such as a router. It is assumed that the p...

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Abstract

The invention discloses a method for detecting the status of the default gateway and corresponding device which can be used in the network system with default gateway. The said default gateway is directly connected to the physical ports of the devices in the network, and these devices have loop checks on the physical ports with default gateway connected directly. If the physical ports is under the status of UP, the working status of the default gateway connected directly with the physical ports is Normal; if the detected status is DOWN, then get the Abnormal result of the status of the default gateway.

Description

technical field [0001] The invention relates to the detection technology of the working state between network devices, in particular to a method and device for detecting the working state of a gateway. Background technique [0002] The Internet network is generally divided into several IP subnets. Switches and routers are network devices that connect multiple IP subnets. The router can perform "address translation" and route selection for data packets between different IP subnets, and then the The switch then exchanges the data packets, so that multiple IP subnets can "read" each other's data packet information for compatible transmission, so as to realize the unimpeded transmission of data packets in the entire network system. [0003] Switches and routers in the network system will use routing tables to select routes when forwarding data packets. In order to reduce the memory space occupied by storing routing tables, default routes are usually set in switches and routers. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L45/28
Inventor 兰保青
Owner 刘纳
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