Method for implementing data transmission link reconstruction
A technology of data transmission and implementation method, which is applied in the field of network communication, and can solve problems such as inaccessibility of the logical layer, communication failure of the switch, economic loss, etc.
Active Publication Date: 2012-07-25
KYLAND TECH CO LTD
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Problems solved by technology
[0002] Today, with the widespread use of communication networks, the requirements for the integrity of links have become increasingly stringent; access, would cause serious economic loss and irreversible casualties
The actual application network is very complicated. For example, the network is divided into multiple vlans, and the switches are physically connected, but the switches in different vlans cannot communicate.
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[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] Figure 1 indicates the application scenario of link reconstruction. Switch 1, PC, MAN 3 are in vlan10, MAN 2, terminal server, MAN 4, switch 2, and switch 5 are in vlan11, vlan10, vlan11 Cannot communicate. If the switches or PCs in the vlan10 and vlan11 are required to communicate, and if any emergency occurs, people cannot touch the switch entities that need to be configured, so the method of the present invention needs to be used to solve the problem. Assuming that the switch 5 is controllable, select vlan11 on the switch 5, then start the terminal server (server), and the terminal server (server) sends a link reconstruction protocol message to all switches that can be connected, the server (server) and the client ( After client) receives the link reconstruction message, all ports are added to the vlan 11 sent together with the link reconstruction protocol m...
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The invention discloses a method for implementing data transmission link reconstruction, and aims to provide a technique for data transmission link reconstruction. The invention adopts the technical scheme that the method comprises the following steps of: selecting a certain vlan on a certain controllable exchanger, then starting a server, sending link reconstruction protocol message to all exchangers capable of being collected through the server, and adding all ports into the vlan id sent together with the link reconstruction protocol message after the server and a client receive the link reconstruction message; and canceling the vlan id to recover an initial state when the server and the client cannot receive the link reconstruction message in a certain time or receive a stop command. After two ports receive the same link reconstruction protocol message, the protocol message shields the redundant ports according to a self loop formation algorithm, and retains one network topology which does not form a loop so as to normally access the exchanger of which a logic layer cannot be accessed. The method is suitable for solving the problem that people cannot touch an exchanger entity of which the logic layer cannot be accessed so that the communication cannot be performed and heavy loss may be caused.
Description
technical field [0001] The present invention relates to the technical field of network communication, and more specifically, relates to the technology of data transmission link reconstruction. Background technique [0002] Today, with the widespread use of communication networks, the requirements for the integrity of links have become increasingly stringent; Visit, will cause severe economic losses and irreversible casualties. The actual application network is very complicated. For example, the network is divided into multiple vlans, and the switches are physically connected, but the switches in different vlans cannot communicate. This situation is an urgent problem to be solved at present. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a data transmission link reconstruction technology based on a link reconstruction protocol that is perfect at the physical layer but cannot be accessed ...
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IPC IPC(8): H04L29/06H04L12/56H04L12/24H04L45/02
Inventor 何英军肖智中
Owner KYLAND TECH CO LTD