The number of otherwise properly-sized frames that failed the ethernet crc check -- a rising count usually points to a noisy optical link or a bad transceiver counted on the receive side of this EPON device/card/port for the completed or in-progress 15-minute performance-monitoring bin. The source DESCRIPTION for this object is mojibake (Chinese text corrupted at the byte level -- e.g. the word for "octets" consistently decodes to the wrong character across the file -- and does not recover cleanly under gbk/gb18030), so this reading is inferred from the object name, its Counter64 syntax, and the standard Ethernet/RMON statistics naming convention this table follows.