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EtherFast
®
Layer 3 Management 24-Port 10/100 + 2-Port Gigabit Ethernet Switch
87
Instant EtherFast
®
Series
•Octets - Number of octets passing through this port.
•Multiple Collisions - A count of successfully transmitted frames for
which transmission is inhibited by more than one collision.
•Late Collisions - The number of times that a collision is detected later
than 512 bit-times into the transmission of a packet.
•Carrier Sense Errors - The number of times that the carrier sense con-
dition was lost or never asserted when attempting to transmit a frame.
•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.
Select Apply to make changes. Select Refresh to refresh the statistics. Select
OK to return to the previous panel. Select Reset to reset a specific statistic.
Select Reset All to reset the all statistics. Select Prev Port to view the previous
port. Select Next Port to view the next port. To display a specific port, set the
port number in the Port field and then press Apply.
86
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 system
reboot.
Select the required port.
•Drop Events - The total number of events in which packets were
dropped due to lack of resources.
•Bytes - Total number of bytes of data received on the network. This
statistic can be used as a reasonable indication of Ethernet utiliza-
tion.
•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. This does not include multicast packets.
•Multicast Frames - The total number of multicast frames.
•CRC/Alignment Errors - The number of CRC/alignment errors (FCS or
alignment errors).