Hierarchical processing and propagation of partial faults in a packet network

A communication network module, comprising: The processor, which is for realizing method, the method comprising a transmission fault information; the fault information with degenerated data, wherein the degenerated data to indicate is reduced with the partial fault relative bandwidth. Further publicizes the method, comprising: The fault information, fault information comprises a fault related degeneration, dataWherein the output available bandwidth is smaller than of the bandwidth of the fault and multiple); retainAnd maintain the available bandwidth is smaller than of the bandwidth of the connection retained, the modification of the bandwidth of the connection retained.