| 摘要 |
A bit stream is offered to a telecommunication network (2, 9) by way of a first network adapter (3, 8) in which said bit stream is converted into transport frames, each having a frame header and a data part. The bit scream is drawn off by way of a second network adapter (4, 10) in which the transport frames are converted back into a replica of the original bit stream. The first network adapter in each frame header sets check codes relating to the data part. The check codes are read by the second network adapter and processed into network-management information (OAM). The data part comprises subframes, each having a subframe header and a subdata part. The subframe headers also comprise check codes relating to the subdata part. By having the network adapters read the bit-error codes from the subframe headers and also use these as OAM information, it is achieved that errors in the data part are also signalled by the network. Application: transfer of MPEG2-TS signals by way of a PDH/SDH/ATM network. |
