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Data protection method of dual-connection network

A dual-homing connection and data protection technology, applied in the field of communication, to improve the anti-fault ability, prevent data duplication and broadcast storm effect

Inactive Publication Date: 2010-01-13
无棣鑫岳化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a data protection method for a dual-homing connection network, so as to prevent the data transmitted between the networks connected through the network from being sent repeatedly, affecting the correctness of the data Transmission, even the formation of broadcast storms, resulting in the problem that the network cannot communicate

Method used

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  • Data protection method of dual-connection network

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Embodiment Construction

[0036] The data protection method of the highly reliable dual-homing connection network can realize the following functions:

[0037] When the links of the dual-homing network are all intact, by blocking a certain port, the communication of the dual-homing network has one and only one transmission path, and the link corresponding to the blocked port is used as the backup link;

[0038] When the link of the dual-homing network fails, if the faulty link is not the above-mentioned backup link, open the above-mentioned blocked port and enable the backup link, so that the communication of the dual-homing network can be transmitted through the above-mentioned port to form a new path. allowing communication to be restored.

[0039] For example, when the data protection method of the above-mentioned dual-homing connection network is applied to the network shown in FIG. The communication path between and network A is:

[0040] Network B Node S3 Node S1 R1 Network A;

[0...

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Abstract

The invention relates to a data protection method of a dual-connection network when a first data node and an auxiliary control node are in dual-connection with a second data node through a control node. The data protection method comprises the following steps that: the control node blocks a port directly connected with a protection link when the protection link and a non-protection link are in a serviceable state; and the control node opens the port directly connected with the protection link when the non-protection link fails and the protection link is in the serviceable state. The data protection method of the dual-connection network of the invention improves the anti-failure ability of the dual-connection network, enables the switch speed to satisfy the requirement of a carrier Ethernet, prevents failures such as the data duplication, broadcast storm, and the like of the dual-connection network, and can be used in a plurality of network structures.

Description

technical field [0001] The invention relates to the communication field, in particular to a data protection method for a dual-homing connection network. Background technique [0002] In the actual application of the network, the networking structure of dual-homing connection is widely used to improve the reliability of the network. With the development of the network towards the direction of multi-service bearing, especially some services have higher and higher requirements on the reliability and real-time performance of the network, a highly reliable dual-homing connection network protection method is required in the network, and it can meet the switching requirements. High real-time requirements with a convergence time of less than 50 milliseconds. [0003] figure 1 is the network topology diagram of Ethernet dual-homing connection; figure 1 As shown, the nodes S1, S2 and S3 are Ethernet switches or network devices with Ethernet switching functions, forming an Ethernet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/42H04L12/437
Inventor 吴少勇
Owner 无棣鑫岳化工集团有限公司
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