IP (Internet protocol) address conflict detecting method and device

Abstract

The invention discloses an IP (Internet protocol) address conflict detecting method and device. The method comprises steps as follows: allocated IP addresses are acquired and identified as IP addresses possibly in a silent conflict state; the IP addresses possibly in the silent conflict state are detected, and whether activity exists in the IP addresses possibly in the silent conflict state is judged; when activity possibly exists in the IP addresses possibly in the silent conflict state, IP addresses in the normal use state are continuously detected at an active state detecting time interval; when activity doesn't exist in the IP addresses possibly in the silent conflict state, the IP addresses possibly in the silent conflict state are detected at a variable-length detecting time interval. According to the IP address conflict detecting method and device, IP address activity detection is performed at the variable-length detecting time interval according to the history use state of the IP addresses, the network traffic produced during detection is reduced, and the detection time of the whole IP address range is shortened.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method and device for detecting IP address conflict. Background technique [0002] In data center IP address management, the available IP address space is usually used as a resource to be managed by the data center, and IP addresses are allocated to specific devices when needed, otherwise managed as assignable IP addresses. Once an IP address is allocated, the existing IP address management method usually does not check whether the IP address is actually used, and manages the IP address as an assignable IP address until a notification that the IP address can be recycled is received. . For an allocated IP address, if it is found that the IP address is inactive for more than a certain period of time, it is considered that the IP address has a silent conflict, that is, the actual usage of the IP address conflicts with the planned usage. [0003] At present, the commonl...

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Problems solved by technology

[0004] The above IP address conflict detection method has the following deficiencies: it does not consider the past use status of the IP address. Although it can be found that the allocated IP address has no active response, this situation may occur accidentally, and it is impossible to determine whether the IP address is It can provide sufficient basis for recovery; IP address conflict detection is performed at a fixed time interval, which increases the network traffic generated by the detection activity and prolongs the detection time of the entire IP address range

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