hwMusaServiceChannelBufferRate 1.3.6.1.4.1.2011.2.6.7.1.1.2.1.9

Service channel buffer usage. It only supports the xDSL service board on the MA5600 and the MA5600T product. -1 indicates that the device cannot get the value, e.g. the board does not support this operation, or the board state is abnormal.