TCM level processing method and device

Abstract

The disclosure discloses a method for processing a Tandem Connection Monitoring (TCM) level, which comprises: obtaining a route of a service which needs to be configured TCM, obtaining a TCM segment on the route of the service, determining a TCM segment which needs to be configured from the obtained TCM segment, and allocating a TCM level for the TCM segment which needs to be configured according to a segment relationship between the TCM segment which needs to be configured and a configured TCM segment. The disclosure further discloses an apparatus for processing a TCM level. By means of the disclosure, a TCM level can be automatically allocated for a TCM segment and environment of multiple network applications can be applicable.

Description

technical field [0001] The invention relates to serial connection monitoring technology in an optical communication network, in particular to a serial connection monitoring level processing method and device. Background technique [0002] At present, Optical Transport Network (OTN, Optical Transport Network) is the trend of evolution from transport network to all-optical network. Digital transmission system and optical transmission system, among which, ITU-T G.709 describes the related functions of Tandem Connection Monitoring (TCM, Tandem Connection Monitoring) of the OTN system. [0003] From the perspective of OTN frame structure and overhead, OTN frame structure is mainly divided into optical transform unit (OUT, Optical transform Unit), optical data unit (ODU, Optical Data Unit), optical channel load unit (OPU, Optical Payload Unit) three floors. Six levels of TCM overhead (OH, OverHead) are defined at the ODU layer. Each TCM includes: path tracking identifier (TTI) u...

AI Technical Summary

Problems solved by technology

[0007] 1) The actual business networking environment is not considered, and it is not suitable for network applications in the actual environment. For example, the business in the actual networking is generally protected. For the insertion of serial connection monitoring, it is necessary to consider the work business and at the same time It is necessary to consider the protection of services, including the protection route; if in the Automatically Switched Optical Network (ASON, Automatically Switched Optical Network) environment, the preset recovery route should also be considered

[0008] 2) The TCM level is calculated from the division of subnets or domains without starting from the perspective of segmentation and analysis of segment relationships, which reduces the flexibility of TCM level management, cannot generate TCM segments according to the existing configuration, and cannot handle the failure of domains. The situation of division, for example: in the multi-level network management system environment, if the lower network management system does not divide the TCM segment by domain, the existing technology cannot automatically generate the TCM segment

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