Data transmission method and apparatus

A data transmission method and equipment technology, applied in the field of network communication, can solve the problems of waste of link resources, inconvenient link maintenance, unreasonable communication methods, etc., and achieve the effect of improving the success rate of transmission

Active Publication Date: 2010-03-17
ZTE CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Aiming at the problem in the related art that the communication mode between switches is not reasonable enough to cause waste of link resources and inconvenient link maintenance, the present invention proposes a data transmission method, which can solve the above problems

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  • Data transmission method and apparatus
  • Data transmission method and apparatus

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Embodiment Construction

[0037] In view of the unreasonable communication mode between switches in the related technology, which leads to low message transmission success rate, unnecessary message retransmission occupies too much link load, and message transmission cannot reflect the specific transmission status, which is not convenient for link maintenance. Problem, the present invention proposes: the second device returns a second data packet to the first device in response to the first data packet from the first device, and the first data packet will carry the number of sending times, which is used to identify the first data How many times the packet has been sent, the second data packet can return the second data packet according to the number of sending times, and the number of times the second data packet is returned is equal to the number of sending times carried in the first data packet, and the second data returned each time Each of the packets carries the current sending times. Through this ...

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Abstract

The invention discloses a data transmission method and an apparatus. The method comprises: a step that a second apparatus receives a first data packet from a first apparatus, wherein the first data packet carries data contents, an identifier of the second apparatus, an identifier of the first apparatus, a first operation code and a current number of transmitting the first data packet, and the operation code is used for indicating that the type of the first data packet is data information; and a step that the second apparatus transmits a second data packet to the first apparatus according to the current transmission number, wherein the second data packet carries the data contents, the identifier of the second apparatus, the identifier of the first apparatus, confirmation information and a second operation code, and the second operation code is used for indicating that the type of the second data packet is feedback information, wherein the number of transmitting the second data packet isthe same as the current number of transmitting the first data packet. The method and the apparatus can determine the state of a link between the apparatuses according to the transmission numbers carried in the data packets, thus facilitating the maintenance of the link.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a data transmission method and equipment. Background technique [0002] At present, a commonly used switch stacking system mainly includes a main switch and several member switches, and each switch is provided with one or more stacking ports, and the switches are connected through the stacking ports, and data transmission is performed through the stacking ports. [0003] In a switch stacking system, when communicating between switches (between member switches, between member switches and the master switch), the communication mechanism adopted is: in order to ensure the reachability of packets and avoid heavy link load For the problem of packet loss, for the transmission of packets for communication between bearer boards, such as topology packets and configuration synchronization packets, one packet is usually sent multiple times in succession. For example, switch 1 sends mes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/16H04L12/24
Inventor 陈建光郑炎马凤鸣
Owner ZTE CORP
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