EtherFast
®
Managed 24-Port with Dual Gigabit Switch
• 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.
• CRCErrors - 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).
• 65-127 Byte Frames - The total number of frames (including bad pack-
ets) received and transmitted where the number of octets fall within the
specified range (excluding framing bits, but including FCS octets).
• 128-255 Byte Frames - The total number of frames (including bad pac-
ets) received and transmitted where the number of octets fall within the
specified range (excluding framing bits, but including FCS octets).
• 256-511 Byte Frames - The total number of frames (including bad pack-
ets) received and transmitted where the number of octets fall within the
specified range (excluding framing bits, but including FCS octets).
• 512-1023 Byte Frames - The total number of frames (including bad
packets) received and transmitted where the number of octets fall within
the specified range (excluding framing bits, but including FCS octets).
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EtherFast
®
Series
RMON Statistics
The RMONStatistics 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).
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