Method and device for realizing fast table synchronization between line cards

A line card, fast technology, applied in the field of data transmission, can solve the problems that cannot meet the actual needs, etc., achieve the effect of less consumption of bandwidth resources, reduction of synchronization delay, and reduction of processing burden

Active Publication Date: 2018-01-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional single-board single-chip centralized processing method is increasingly unable to meet actual needs

Method used

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  • Method and device for realizing fast table synchronization between line cards
  • Method and device for realizing fast table synchronization between line cards
  • Method and device for realizing fast table synchronization between line cards

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Embodiment Construction

[0041] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] refer to figure 1 , an embodiment of the method for implementing fast table synchronization between line cards of the present invention is proposed. The method for realizing fast table synchronization between line cards in this embodiment includes the following steps:

[0043] Step S110, creating a unidirectional synchronous data transmission channel loop between line cards;

[0044] When the Ethernet switching system is started, a one-way synchronous data transmission channel is established between adjacent line cards, and finally a synchronous data transmission channel loop is formed. The present invention makes full use of the existing backboard switching...

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Abstract

The invention discloses a method and device for realizing fast table synchronization between line cards. The method comprises the following steps: creating a loop of a unidirectional synchronous data transmission channel between line cards; any line card will send out synchronization when the fast table changes. message, and the synchronization message is sequentially transmitted among the line cards through the loop of the unidirectional synchronization data transmission channel to perform synchronization operation; until the line card that initially sent the synchronization message receives the synchronization message sent by itself, then End the synchronization operation and delete the synchronization message. In the embodiment of the present invention, a synchronous data transmission channel loop is established between line cards, so that synchronization messages can be transmitted in the synchronous data transmission channel loop, thereby reducing the processing burden of the main control board; and in a network with n line cards Every time a synchronization operation is performed on the system, only the interaction of n packets can be completed, and once the synchronization is successful, there will be no more synchronization message packets in the system, thereby improving the synchronization efficiency.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to a method and device for realizing fast table synchronization between line cards. Background technique [0002] Ethernet is not only a connection standard for computers to access local area networks, but also a communication protocol for data sharing between networked devices. Ethernet adopts carrier sense multi-point access technology with collision detection. The host can only send data when it detects that the line is idle. If a collision is detected, that is, when other hosts are sending data, it will try to send again after a while until The data is sent out. The popularity, high-speed transmission speed and low-cost characteristics of Ethernet make it a de facto standard for LAN hardware and network connections. get more and more applications. [0003] With the development of the Internet and the wide application of Ethernet in the Internet, the rate of Ethernet has been ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L7/00
Inventor 黄治文
Owner ZTE CORP
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