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DUA1840-0AAA01
Port Traffic Statistics
5-7
Multicasts Received
The number of frames successfully received that
have a multicast destination address. This does not include frames
directed to a broadcast address or frames received with errors.
Broadcasts Received
The number of frames received that have a
broadcast destination address. This does not include frames with errors.
Collisions
An estimate of the total number of collisions that occurred
when transmitting from the unit. Collisions are a normal part of
Ethernet operation that occur when two devices attempt to transmit
at the same time. A sudden sustained increase in the number of
collisions may indicate a problem with a device or cabling on the
network, particularly if this is not accompanied by an increase in
general network traffic.
Fragments
The total number of packets received that were not an
integral number of octets in length or that had a bad Frame Check
Sequence (FCS), and were less than 64 octets in length (excluding
framing bits but including FCS octets).
Frames Forwarded
The total number of frames which were received
by the port and forwarded to their destination address.
Frames Filtered
The total number of frames that were filtered because
the destination address was on the same segment (port) as the source
station.
Errors
The total number of errors which have occurred on the port.
Errors can be one of the following:
■
CRC Alignment Errors
■
Short Events
■
Long Frames
■
Late Events
■
Jabbers
The value shown should be a very small proportion of the total data
traffic.