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Communication method of packet transport network

A technology of packet transmission network and communication method, which is applied in the communication field of packet transmission network, can solve the problems of low utilization rate of network resources and low data transmission efficiency, and achieve the effect of increasing utilization efficiency and improving utilization efficiency

Inactive Publication Date: 2012-04-11
ZHEJIANG UNIV
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  • Description
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Problems solved by technology

[0008] The invention provides a communication method for a ring-shaped packet transmission network, which solves the problems of low network resource utilization and low data transmission efficiency in traditional methods

Method used

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  • Communication method of packet transport network
  • Communication method of packet transport network
  • Communication method of packet transport network

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Embodiment Construction

[0020] Such as Figure 5 The packet transmission network shown is a ring structure consisting of 6 nodes A to D connected in turn, in which node A is the master node, and the remaining nodes are slave nodes. The master node includes working port A1 and management port A2, as shown below C transmits data to node A as an example to introduce the communication method of the entire network.

[0021] Before data transmission, the network first performs continuity detection (CC detection) as described in the background art, and then performs loopback detection. Loopback detection is mainly used to verify the connection status between two nodes. Like continuity detection, it also belongs to the detection of connectivity. The implementation method is that the node at one end sends the LB request signal to the remote node of the network, according to whether it can be received The other party's feedback signal is used to detect connectivity, and the request signal is automatically trigger...

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Abstract

The invention discloses a communication method of a packet transport network which comprises several nodes successively connected in loop structure, wherein one of the nodes is a master node which comprises a work port and a management port. The communication method comprises the following steps that: when an initial node transmits data to a destination mode, the packet transport network detects data transmission packet loss rate, data transmission time delay and data transmission time delay jitter between the initial node and the destination node; and when any item of the data transmission packet loss rate, the data transmission time delay and the data transmission time delay jitter exceeds a respective threshold value, then the master node opens the management port temporarily, the initial node transmits the data to the destination node in another direction, and after performance recovery, the data is transmitted in an original direction again. By the method, the intermittent work mechanism of the management port is utilized, the protection function of a network performed by the management port does not be destructed and the using efficiency of the network is improved simultaneously.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, and in particular to a communication method of a packet transmission network. Background technique [0002] With the acceleration of the commercial construction of the packet transport network, how to improve the operating efficiency of the packet transport network and reduce the operating cost of each bit in the actual networking of the packet transport network has attracted more and more attention and has become one of the key considerations. . The content represented by the "bits" flowing in the network has evolved from pure data to multimedia. The information flow in the network is constantly increasing, which also puts forward lower requirements on the cost of data. In the construction and operation of China’s 3G network, the proportion of high-speed data and multimedia application services has further increased, and the delay requirements of the transmission network of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04L12/42H04L1/00
Inventor 董树荣周庆涛金鹏程吴梦军
Owner ZHEJIANG UNIV
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