EXFO FTB-880 - Page 325

Test Results
NetBlazer 313
Alarms/Errors
IP/UDP/TCP
Errors
 IP Chksum (IP Checksum)
RX: The IP datagrams received have invalid IP header checksum. Only
available for IPv4.
 UDP Chksum (UDP Checksum)
RX: The UDP segments received have invalid UDP checksum.
 TCP Chksum (TCP Checksum)
RX: The TCP segments received have invalid TCP checksum.
ISDN
Alarms
 D-Ch Down (D-Channel Down)
RX: The Data Link Layer is not in the multiple-frame established state.
Errors
 D-Ch FCS (D-Channel FCS)
RX: D-Channel Frames have an invalid FCS.