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ARP realization method based on distributed system

A distributed system and implementation method technology, applied in the field of distributed system data processing, can solve the problems of main control and line board communication pressure, low ARP efficiency, etc., and achieve the effect of improving analysis efficiency and stability

Active Publication Date: 2013-07-03
SHANGHAI BAUD DATA COMM
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The present invention aims at the inefficiency of indirectly requesting ARP from the main control when the distributed system processes ARP information in the above-mentioned existing solutions, and when encountering burst traffic, it will cause pressure on the communication between the main control and the line board, etc. problem, and provide a new ARP realization method based on distributed system

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  • ARP realization method based on distributed system
  • ARP realization method based on distributed system
  • ARP realization method based on distributed system

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Embodiment Construction

[0031] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0032] Aiming at the inefficiency of using the scheme of indirectly requesting ARP from the main control in the existing technology, when encountering sudden traffic, it will cause pressure on the communication between the main control and the board, this invention aims to simplify and speed up the distributed system The ARP analysis process provides a method to directly request ARP from the destination line card to avoid pressure on the main control. The specific process is: when the line card needs to resolve ARP across line cards, it directly requests the ARP entry from the destination line card; If the ARP entry exists in the destination line card, it will directly return the ARP entry to the requesting line card; otherwise, the destination l...

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Abstract

The invention discloses an ARP (Address Resolution Protocol) realization method based on a distributed system. In the method, when a line card is required to resolve an ARP by crossing line cards, an ARP table entry of a target line card is requested directly; if the target line card has the ARP table entry, the ARP table entry is directly returned to the requesting line card; or else, the target line card transmits an ARP request for ARP resolution; and the resolved ARP table entry is synchronized to other line cards. With the adoption of the method of directly requesting the ARP to the target line card, pressure of a master controller is avoided; compared with the prior art, the ARP resolution efficiency is improved greatly, and the stability of the master controller is improved.

Description

technical field [0001] The invention relates to network data transmission technology, in particular to a distributed system data processing technology. Background technique [0002] In a distributed system, when receiving a packet forwarded across line cards, in order to improve the processing performance of the whole machine, it is usually considered that the ingress line card completes the entire forwarding work. Therefore, it is required to be able to query the ARP information of the egress line card on the ingress line card. Usually, firstly, the line card can synchronize the learned ARP entry to the main control, and then, when other line cards need to resolve ARP across line cards, then synchronize the ARP entry on the main control to the line card. However, if the master control does not have the ARP entry, the master control will request the destination line card, and then the destination line card will send an ARP request. [0003] The problem brought about by suc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/757
Inventor 汪革彭双庭蒋晓刚陈少春
Owner SHANGHAI BAUD DATA COMM