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ARP table updating method and device

A technology of an ARP table and an update method, applied in the field of an address resolution protocol table update method and device, capable of solving problems such as inability to age ARP entries in time

Pending Publication Date: 2021-12-17
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for updating an ARP table to solve the problem in the prior art that ARP entries cannot be aged in time

Method used

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  • ARP table updating method and device

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Embodiment Construction

[0047] Aiming at the problem in the prior art that the ARP entries cannot be aged in time, the embodiment of the present invention provides an ARP table update method, which can be applied to at least two access network devices and at least two Among the converged network devices, at least two converged network devices share the configuration table and are respectively connected to at least two access network devices. The following describes the ARP entry update method with the access network device and the converged network device as execution subjects.

[0048] Firstly, the ARP table update method with the access network device as the execution subject is introduced. The process of this method is as follows: figure 2 As shown, the execution steps are as follows:

[0049] S21: After receiving the ARP message sent by the downlink terminal, send the source IP address and source Media Access Control (Media Access Control Address, MAC) carrying the ARP message to the first selec...

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Abstract

The invention discloses an ARP table updating method and device, and the method comprises the steps: transmitting a query message carrying a source IP address and a source MAC address of an ARP message to first selected convergence network equipment after receiving the ARP message transmitted by a downlink terminal; if a response message carrying the result of "not found", the source IP address and the source MAC address is received, adding a first ARP table item comprising the source IP address and the source MAC address in an ARP table; if a detection message carrying a first IP address and a second MAC address sent by second selected convergence network equipment is received, initiating ARP detection based on the first IP address and the second MAC address, and if an ARP response is not received, deleting a second ARP table item comprising the first IP address and the second MAC address from the ARP table, and sending a deletion notification carrying the first IP address and the second MAC address to the second selected convergence network equipment. According to the scheme, the deletion time of the ARP table item can be shortened.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to an address resolution protocol (Address Resolution Protocol, ARP) table updating method and device. Background technique [0002] in such as figure 1 In the shown three-layer-to-edge network architecture, at least two aggregation network devices (the figure shows two aggregation network devices) are respectively connected to at least two access network devices to form a full network (full mesh), After each access network device learns the ARP entry of the downlink terminal, it converts it into a route and synchronizes it to each convergence network device, and each convergence network device has a route of the entire network. [0003] In the static Internet Protocol (IP) address scenario, after an online terminal goes offline, the access network device connected to the terminal will delete the ARP entry after the ARP entry corresponding to the terminal reaches the aging t...

Claims

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Application Information

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IPC IPC(8): H04L29/12
CPCH04L61/103
Inventor 张起强
Owner RUIJIE NETWORKS CO LTD
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