Fault codes! This would be a great amendment to the Internet Sticker. Some of the abbreviations would need to be resolved, such as MDD, FEC, NCP, etc.
It's all in that 900 page document I linked. But even understanding that document requires a lot of general technical knowledge. I understand some of it but not all of it. For example, this is the definition of NCP:
5.2.2.1.2 NCP
The Next Codeword Pointer (NCP) is a portion of the downstream OFDM channel which is dedicated to carry information about the mapping of FEC codewords to subcarriers within a symbol. NCP is generally considered a part of the Downstream Convergence Layer. [DOCSIS PHYv3.1] includes a detailed description of the NCP. The NCP references in the MULPI specification are limited to the DPD message which is also used to specify a profile for NCP as well as to performance monitoring and failure reporting protocol.
FEC is a bit easier to understand:
Forward Error Correction FEC enables the receiver to detect and fix errors to packets without the need for the transmitter to retransmit packets.
