Panasonic Switch-M12PWR Operation Manual page 208

The counters are described below.
Total RX Bytes Displays the number of bytes of all packets received.
Total RX Pkts Displays the number of all packets received.
Good Displays the number of broadcast packets received.
Broadcast
Good Multicast Displays the number of multicast packets received.
CRC/Align Displays the number of error packets that have a normal packet
Errors length (64 to 1518 bytes); however, have an error found by an error
detection code (FCS). If the packet length is an integral multiple of
one byte, the error is a CRC (FCS) error. If not, it is an alignment
error.
Undersize Pkts Displays the number of error packets that have a packet length less
than 64 bytes; however, have no other errors.
Oversize Pkts <When the Jumbo status is disabled>
Displays the number of packets having a packet length greater than
1518 bytes.
<When the Jumbo status is enabled>
Displays the number of packets having a packet length greater than
9216 bytes.
Fragments Displays the number of error packets that have a packet length less
than 64 bytes and have a CRC or alignment error.
Jabbers Displays the number of error packets that have a packet length less
than 1518 bytes and have a CRC or alignment error.
Collisions Displays the number of packet collisions.
64-Byte Pkts Displays the total number of packets having a packet length of 64
bytes.
65-127 Pkts Displays the total number of packets having a packet length of 65
to 127 bytes.
128-255 Pkts Displays the total number of packets having a packet length of 128
to 255 bytes.
256-511 Pkts Displays the total number of packets having a packet length of 256
to 511 bytes.
512-1023 Pkts Displays the total number of packets having a packet length of 512
to 1023 bytes.
Over 1024 Pkts Displays the total number of packets having a packet length of 1024
bytes or greater.
* This field is displayed when the Jumbo status is disabled.
1024-1518 Pkts Displays the total number of packets having a packet length of 1024
to 1518 bytes.
* This field is displayed when the Jumbo status is enabled.
Note: By factory default, this screen is set to refresh about every 10 seconds.
Therefore, both the console and Telnet timeouts do not occur.
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