A computer-implemented method may include measuring a performance of a virtual channel carrying packets through a transport network for a time period, measuring a performance of an ingress interface to the transport network carrying the virtual channel packets for the time period, and measuring a performance of an internal interface carrying the virtual channel packets internal to the transport network for the time period. The computer-implemented method may determine that the performance of the virtual channel during the time period does not meet a first performance standard, and, when the performance of the virtual channel does not meet the first performance standard, may automatically determine whether the performance of the ingress interface meets a second performance standard and whether the performance of the internal interface meets a third performance standard.