EtherWAN EX26262, Management Manual

Page: 231 / 326

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C
HAPTER
5
| Monitoring the Switch
Displaying Information About Ports
◆
Receive/Transmit Size Counters – The number of received and
transmitted packets (good and bad) split into categories based on their
respective frame sizes.
◆
Receive/Transmit Queue Counters – The number of received and
transmitted packets per input and output queue.
◆
Receive Error Counters
■
Rx Drops – The number of inbound packets which were discarded
even though no errors had been detected to prevent their being
delivered to a higher-layer protocol. One possible reason for
discarding such a packet could be to free up buffer space.
■
Rx CRC/Alignment – The number of frames received with CRC or
alignment errors.
■
Rx Undersize – 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.
■
Rx Oversize – The total number of frames received that were
longer than the configured maximum frame length for this port
(excluding framing bits, but including FCS octets) and were
otherwise well formed.
■
Rx 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.
■
Rx Jabber – The total number of frames received that were longer
than the configured maximum frame length for this port (excluding
framing bits, but including FCS octets), and had either an FCS or
alignment error.
■
Rx Filtered – The number of received frames filtered by the
forwarding process.
◆
Transmit Error Counters
■
Tx Drops – The number of frames dropped due to output buffer
congestion.
■
Tx Late/Exc. Coll. – The number of frames dropped due to late or
excessive collisions.