Siemens SCALANCE W788-1PRO Operating Instructions Manual page 235

Configuration Using Web Based Management and the Command Line Interface
● Fragmentation errors
Sum of all failed fragmentations. One of the fragments was not received or
received too late.
● Encryption errors
Is incremented if a frame is received in which the WEP bit is set and the device
operates without encryption, or the reverse situation when a packet is received
without a WEP bit and encryption is enabled.
● Duplicate frames
Sum of all frames received twice.
● FCS errors
Sum of all packets received in which the checksum was incorrect.
● Header CRC error
Sum of all packets received in which the header checksum was incorrect.
● Decrypt CRC error
Sum of all packets received in which the checksum of the encrypted data buffer
was incorrect.
Transmit Errors
● Transmission errors
Is incremented when a frame cannot be sent successfully despite hardware
retries.
● Dropped frames
Number of packages that were dropped either when the packet was not sent
despite all retries or packets that had not been sent when a node deregistered.
● Acknowledged errors
Sum of all packets sent that were not confirmed by an acknowledge.
● RTS errors
Sum of all sent RTS frames that were not acknowledged by a CTS.
● Retry count
Sum of all frames sent successfully that required one or more retries.
● One retry count
Sum of all frames sent successfully that required exactly one retry.
● Multiple retry count
Sum of all frames sent successfully that required more than one retry.
Note
The percentages shown following the errors relate to the entire received/sent
frames.
Operating Instructions SCALANCE W78x
C79000-G8976-C184-07
235