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Automatic protection switching method, main device and standby device

A technology of automatic protection switching and master equipment, applied in the field of communication systems, which can solve the problems of unable to protect the link and unable to realize the protection link Link2 protection.

Active Publication Date: 2012-10-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, Port1 and Port2 are not on the same device, and the traditional single-point protection protocol cannot protect the protection link Link2 on the working link Link1.
Similarly, in the environment of four network elements, traditional multiplex section protection cannot play the role of link protection

Method used

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  • Automatic protection switching method, main device and standby device
  • Automatic protection switching method, main device and standby device
  • Automatic protection switching method, main device and standby device

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0041] The present invention provides a cross-device automatic protection switching realization method, such as image 3 shown. Define the device where the working link is located as the master device, and the port connected to the link as the master port; the device where the protection link is located as the backup device, and the port connected to the link as the backup port. That is, node S2 is the master device, port2 is the working port, node S3 is the backup device, and port1 is the protection port. The cross-device multiplex section protection is composed of two netwo...

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Abstract

The invention provides an automatic protection switching method. The method includes that a main device where an active link is located and a standby device where a protection link is located form a multiplex section protection group; when the active link in the main device gives alarm information or alarm disappearing information, an alarm message is sent to the standby device, and when the standby device receives the alarm message, a switching decision is performed. The invention provides the main device and the standby device. By means of the automatic protection switching method, the main device and the standby device, the communication of the multiplex section protection group between the devices can be accomplished, triggering conditions at two ends are responded, and the protection of multiplex sections among the devices is achieved.

Description

technical field [0001] The invention relates to a communication system, in particular to an automatic protection switching method, main equipment and backup equipment. Background technique [0002] With the rapid development of communication technology, the self-healing protection capability of the network is becoming more and more important. Network protection can ensure that services can be switched without being interrupted through protection group switching when equipment or links are abnormal. [0003] Automatic Protection Switching (Automatic Protection Switching, APS) is applied in various network environments. Automatic protection switching can be divided into linear and ring according to the networking form. Linear protection switching is a widely used networking form, which is applied in point-to-point physical topology. When the network is normal, the traffic between the two communication nodes is transmitted on the main path; when the main path fails, the traf...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L1/22
CPCH04L12/437H04L1/22H04L45/00
Inventor 郝红杰
Owner ZTE CORP
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