Error Detect Yes on BERT module RFC2544

What errors drive the Error Detect column on the RFC 2544 results for the bert modules (MSAM/CSAM)?

For the Frame Loss Test or Throughput Test,  ‘Error Detect’ signifies the presence of either ATP payload errors, FCS errors, IP checksum errors, or TCP/UDP checksum errors. (The IP checksum applies only in L3/L4 and the TCP/UDP applies only in L4.) The Throughput test has an Anomolies that shows which errors were detected.