Accton Technology CheetahSwitch Workgroup-3514F, Management Manual

Page: 97 / 114

Port Statistics
3-37
RMON Statistics
RMON Statistics display key statistics for each port or media module from RMON
group 1. (RMON groups 2, 3 and 9 can only be accessed using SNMP management
software such as AccView.) The following screen displays overall statistics on traffic
passing through each port. RMON statistics provide access to a broad range of
statistics, including a total count of different frame types passing through each port.
Values displayed have been accumulated since the last system reboot.
Parameter Description
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 utilization.
Received Frames The total number of frames (bad, broadcast and multicast) received.
Broadcast Frames The total number of good frames received that were directed to the broadcast
address. Note that this does not include multicast packets.
Multicast Frames The total number of good frames received that were directed to this multicast
address.
CRC/Alignment Errors The number of CRC/alignment errors (FCS or alignment errors).
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 (excluding
framing bits, but including FCS octets) and were otherwise well formed.
Fragments The total number of frames received that were less than 64 octets in length
(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 (excluding
framing bits, but including FCS octets), and had either an FCS 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 packets) received and transmitted that
were between 65 and 127 octets in length inclusive (excluding framing bits but
including FCS octets).
128-255 Byte Frames The total number of packets (including bad packets) received and transmitted that
were between 128 and 255 octets in length inclusive (excluding framing bits but
including FCS octets).