EtherFast® Series
RMON Statistics
The RMON Statistics screen provides access to a broad range of statistics, including a total count of different frame types and sizes passing through each port. The values displayed have been accumulated since the last sys- tem reboot.
Select the required port.
•Drop Events - The total number of events in which packets were dropped due to lack of resources.
•Received Bytes - Total number of bytes of data received on the network. This statistic can be used as a reasonable indication of Ethernet utiliza- tion.
•Received Frames - The total number of frames (bad, broadcast, and mul- ticast) received.
•Broadcast Frames - The total number of good frames received that were directed to the broadcast address. This does not include multicast packets.
•CRC/Alignment Errors - The number of CRC/alignment errors (FCS or alignment errors).
EtherFast® Managed
•Undersize Frames - The total number of frames received that were less than 64 octets long (excluding framing bits, but including FCS octets) and were otherwise well formed.
•Oversize Frames - The total number of frames received that were longer than 1518 octets long (excluding framing bits, but including FCS octets) and were otherwise well formed.
•Fragments - The number of outbound packets that could not be trans- mitted because of errors.
•CRC Errors - The total number of frames received that were less than
64 octets long (excluding framing bits, but including FCS octets) and had either an FCS or alignment error.
•Jabbers - The total number of frames received that were longer than 1518 octets long (excluding framing bits, but including FCS octets) and had either an RCS or alignment error.
•Collisions- The best estimate of the total number of collisions on this Ethernet segment.
•64 Byte Frames - The total number of frames (including bad packets) received and transmitted that were 64 octets in length (excluding framing bits, but including FCS octets).
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