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24-port NWay Ethernet Switch User’s Guide
88 Using the Console Interface
♦ Dropped Frames The number of frames which are dropped by this port since the last Switch reboot.
♦ Undersize Frames The number of frames detected that are less than the minimum permitted frame size of 64
bytes and have a good CRC. Undersize frames usually indicate collision fragments, a normal network occurrence.
♦ Total errors The sum of the CRC Error, Oversize Frames, Fragments, Jabber, Late Collision, Mac Rx Error,
Dropped Frames, and Undersize Frames counters.
♦ Collisions The number of collision that has occurred.
Port Packet Analysis Statistics
To access the fourth item on the Traffic Statistics menu, choose Port Packet Analysis Statistics. The following
table appears:
Figure 6-59. Packet Analysis Statistics table
Select the desired setting in the Ports field: 1 to 4, 5 to 8, 9 to 12, 13 to 16, 17 to 20, 21-S1P2, or Slot 2 and the
desired increment setting in the Polling Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend. Pressing
CLEAR COUNTER resets the counters.
The statistic counters displayed are defined as follows:
♦ 64, 65-127, 128-255, 256-511, 512-1023, 1024-1518 The number of good frames of various length ranges, both valid
and invalid.
♦ RX (GOOD) The number of good frames received. This also includes local and dropped packets.
♦ TX (GOOD) The number of good frames sent from the respective port.
♦ Total RX The number of frames received, good and bad.
♦ TX Octets The number of good bytes sent from the respective port.
♦ RX Octets The number of good bytes received. This also includes local and dropped packets.