Comtech EF Data CDM-700 - Manual (Page 96)

CDM-700 High Speed Satellite Modem Revision 5
Front Panel Operation MN/CDM700.IOM
6–42
The statistics for the Gigabit Ethernet Interface are shown in the following table:
GBEI Statistics Summary
Category Message Description
1000Base-T Link
Statistics
FPGA Statistics FPGA Link Errors Indicates the number of HDLC link errors that have occurred on
the Rx WAN interface. This error would most likely occur if there
are errors in the received signal from the satellite resulting in
corrupted frames.
FPGA Overrun Errors Indicates the number of times that a GBEI buffer overrun has
occurred in the Rx direction (WAN to the LAN). This error would
most likely occur if there are errors in the received signal from the
satellite resulting in a corrupted framing structure.
FPGA Rx Packet Count Indicates the number of Ethernet packets received from the WAN
FPGA Overflow Errors
v3.1.0 and earlier
Indicates the number of times this error is likely to occur if the
LAN traffic to the modem exceeds that which can be HDLC
encapsulated per the configured modem data rate.
FPGA Overflow Errors
v3.1.1 and later
For debug only
FPGA Tx Packet Count Indicates the number of Ethernet frames transmitted to the WAN
1000Base-T Link
Statistics (cont)
LAN Statistics LAN Good Octets (In) The sum of lengths of all good Ethernet frames received from the
LAN
LAN Bad Octets (In) The sum of lengths of all bad Ethernet frames received from the LAN
LAN Unicast (In)
The sum of good frames received from the LAN that have a unicast
destination MAC address
LAN Broadcast (In)
The sum of good frames received from the LAN that have a
broadcast destination MAC address
LAN Multicast (In)
The sum of good frames received from the LAN that have a multicast
destination MAC address
LAN Pause (In) The number of good flow control frames received from the LAN
LAN Collisions (In) The sum of collisions detected on the LAN
LAN Undersize (In) Removed, V1.3.1 and later
LAN Fragments (In)
Total frames received from the LAN with a length of less than 64
octets and an invalid FCS
LAN Oversize (In)
Total frames received form the LAN with a length greater than the
maximum size of octets but with a valid FCS
LAN Discards (In)
A count of the number of incoming packets from the LAN to GBEI
card that are overflowing the Tx Buffer and discarded
LAN Jabber (In) Removed, V1.3.1 and later
LAN Rx Err (In)
Total frames received from the LAN for which an error was detected
at the PHY
LAN FCS Err (In)
Total frames received from the LAN with a CRC error which was not
counted in the Fragments or Rx Err totals
LAN Octets (Out) The sum of the lengths of all Ethernet frames transmitted to the LAN
LAN Unicast (Out)
The sum of frames transmitted to the LAN that have a unicast
destination MAC address
LAN Broadcast (Out)
The sum of frames transmitted to the LAN that have a broadcast
destination MAC address
LAN Multicast (Out)
The sum of frames transmitted to the LAN that have a multicast
destination MAC address