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ARP table entry updating method and device

An ARP table entry and update method technology, applied in the field of network communication, can solve problems such as consumption of network resources, abnormal transmission of IP packets, flooding of ARP request packets, etc., and achieve the effect of avoiding abnormal transmission

Active Publication Date: 2020-08-18
HANGZHOU DPTECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] When there are a large number of terminal devices in the above-mentioned switch network, the frequent changes of the network topology will be caused by the frequent offline and offline of the terminal devices, and the ARP cache table in the root switch and each designated switch will be deleted frequently, which will not only cause the network The flood of ARP request packets sent in the form of internal broadcast greatly consumes network resources, and will also cause the root switch and designated switches to fail to forward IP packets normally, resulting in abnormal IP packet transmission

Method used

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  • ARP table entry updating method and device
  • ARP table entry updating method and device
  • ARP table entry updating method and device

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Embodiment Construction

[0029] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0030] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides an ARP table entry updating method and device, which are used for deleting only part of ARP table entries in an ARP cache table by utilizing an ARP detection mechanism when a network topology structure of a switch network configured with an STP is changed.

Description

technical field [0001] The present application relates to network communication technology, in particular to a method and device for updating ARP entries. Background technique [0002] In a switch network configured with STP (Spanning Tree Protocol, Spanning Tree Protocol), according to the election mechanism of the STP protocol, one switch will be elected as the root switch, and other switches will be used as designated switches. When the root switch senses a change in the network topology, the root switch notifies all other designated switches to clear its own ARP cache table while clearing its own ARP cache table. [0003] When there are a large number of terminal devices in the above-mentioned switch network, the frequent changes of the network topology will be caused by the frequent offline and offline of the terminal devices, and the ARP cache table in the root switch and each designated switch will be deleted frequently, which will not only cause the network The floo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
CPCH04L61/103H04L61/5053
Inventor 李有
Owner HANGZHOU DPTECH TECH
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