Method for rapidly detecting alarm link failure in IP (internal protocol)-RAN (random access network) equipment

Abstract

The invention relates to a method for rapidly detecting alarm link failure in IP (internal protocol)-RAN (random access network) equipment. The method comprises the steps of: making a quick alarming link detecting protocol including a request message (request) and a reply message (replay); periodically sending the request message (request) to a main control unit through the business interface unit of the IP-RAN equipment; and if the business interface unit receives the reply message (replay) and can correctly fetch field information from the reply message (replay), determining that the link for the message transmission is correct based on physics and logic; otherwise, determining the link as the chain in an abnormal state. By using the method provided by the invention, the defects that the alarming is out of work because the alarming can not be normally transmitted due to abnormal link are prevented during researching, developing, producing, managing and maintaining IP-RAN equipment; and a mechanism for quickly detecting the alarming link fault between boards is provided to achieve efficient, reliable and flexible alarming link detecting means, which has important implications for ensuring the stability of the business.

Description

technical field [0001] The invention relates to an IP radio access network (IP-RAN) system, in particular to a method for IP-RAN equipment to quickly detect and alarm link failures. Background technique [0002] The IP-RAN (IP Radio Access Network) system is applied to the IP-based mobile backhaul network. It has the characteristics of transmission equipment and data equipment, so it is compatible with ITU-T (International Telecommunication Union Telecommunication Standardization Organization) and IETF (Internet Engineering Task Force ) protection agreement. Its network-level protection includes LSP 1+1 / 1:1 path protection, Wrapping / Steering ring network protection, dual-homing protection and MPLS FRR (MPLS fast rerouting) protection. If the alarm transmission of any node fails, the service link protection may fail. Therefore, the alarm plays a key role in ensuring the normal operation of the system. [0003] With the continuous increase of equipment capacity, continuous e...

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Problems solved by technology

[0008] In view of the defects existing in the prior art, the purpose of the present invention is to provide a method for IP-RAN equipment to quickly detect and alarm link failures, which can prevent abnormal link failures during the development, production, management and maintenance of IP-RAN equipment. As a result, alarms cannot be transmitted normally, resulting in defects such as alarm failures. By providing a mechanism for quickly detecting alarm link failures between boards, an efficient, reliable, and flexible alarm link detection method is realized, which is of great significance for ensuring business stability.

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