Comtech EF Data SLM-5650A - Manual (Page 214)

SLM-5650A Satellite Modem Revision 8
Network Processor (NP) Interface MN-SLM5650A
8–52
WAN Rx Frames
Column Description
Network Layer Total packets received from data link layer.
Data Link Layer Total frames received from satellite layer.
Satellite Layer
Total frames received over the satellite.
WAN Rx Errors
Column Description
Network Layer
Counter updates for every WAN ingress packets with size more than 1700
bytes.
Data Link Layer These are the total WAN_FPGA Errors
Satellite Layer These are the total WAN_FPGA Errors.
Detailed Satellite Rx Errors
Item Description
WAN Rx Bad Address Errors
HDLC Address of the received frame does not match one of the eight
configured HDLC addresses.
WAN Rx Undersized Errors
For a given CEFD WAN Control byte setting, received frame is too short to be
valid.
WAN Rx HDLC Frame Errors
Any one of the following HDLC error conditions: Abort, Octet Alignment, or
Frame Length shorter than 32-bits.
WAN Rx Overrun Errors HDLC receive FIFO has overflowed.
WAN Rx Packet CRC Errors The Packet CRC checksum failed.
WAN Rx HDLC CRC Errors The received HDLC frame has failed the HDLC CRC checksum.