Linksys Etherfast EF1704 User Manual page 42

• Out Non-Unicast Pkts - The total number of packets that higher-level
protocols requested be transmitted to a non-unicast (that is, a subnet-
work-broadcast or subnetwork-multicast) address, including those that
were discarded or not sent.
• Out Discards - The number of outbound packets which were chosen to
be discarded even though no errors had been detected to prevent their
being transmitted. One possible reason for discarding such a packet
could be to free up buffer space.
• Out Errors - The number of outbound packets that could not be trans-
mitted because of errors.
• CRC Errors - Number of Ethernet Cyclic Redundancy Check errors
detected by this device.
Ethernet
• Single Collisions - The number of successfully transmitted frames for
which transmission is inhibited by exactly one collision.
• Deferred Transmissions - A count of frames for which the first trans-
mission attempt on a particular interface is delayed because the medium
was busy.
• Excessive Collisions - The number of frames for which transmission
failed due to excessive collisions.
• Drop Events - The total number of events in which packets were
dropped due to lack of resources.
• 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.
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Instant EtherFast Series
®
EtherFast Layer 3 Management 4-Port Gigabit Ethernet Switch
®
• 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.
RMON Statistics
The RMON Statistics screen, shown in Figure 6-70, 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 accumulat-
ed since the last system reboot.
Select the required port.
Figure 6-70
• 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.
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