Patent ID: 7760620

Claim:
A method for processing fault dependency of different levels of tandem connection monitoring, comprising: obtaining monitored coverage scopes of the different levels of tandem connection monitoring (TCM); wherein the TCM is implemented in a network including sub-networks of a plurality of operators; locating a fault section according to an overlapping relationship between monitored coverage scopes of the at least two different levels of TCM at which the warnings are reported and performance degradation degrees of the at least two different levels of TCM, the fault section being located when warnings are reported in at least two different levels of TCM; outputting location-related information that includes information of the fault section to a user; and suppressing warnings between the at least two different levels of TCM according to the overlapping relationship between the monitored coverage scopes of the at least two different levels of TCM; wherein when suppressing warnings between the at least two different levels of TCM, if a node terminates multiple levels of TCM, a sink function of a level of TCM does not use Server Signal Failure (SSF) information transferred by a previously processed level of TCM after generating a Trail Signal Failure (TSF).