Repeater Statistics 5-11
Managing Ethernet MicroLAN Modules
Frames (Blue)
Frames The total number of packets (both good and error) processed
by the selected repeater, board, or port.
Nothing The Frames scale is not currently measuring any statistics.
Total E rror s (Red )
Total Errors The total number of errors of any kind processed by the
selected repeater, board, or port.
Collisions The total number of collisions (combined transmit and receive)
detected by the selected repeater, board, or port.
CRC Errors The total number of packets with CRC (Cyclical Redundancy
Check) errors that the selected repeater, board, or port has
received from the network.
Runt Packets The number of runt packets detected by the selected repeater,
board, or port. A runt frame is one that is less than the
minimum Ethernet frame size of 64 bytes.
Giant Packets The number of giant packets detected by the selected repeater,
board, or port. A giant frame exceeds the maximum Ethernet
frame size of 1518 bytes (excluding the preamble).
Algn. Errors The number of misaligned packets detected by the selected
repeater, board, or port. Misaligned packets are those which
contain a non-integral number of bytes; they can result from a
MAC layer packet formation problem, or from a cabling
problem that is corrupting or losing data. Alignment errors are
also known as framing errors.
OOW Collns. The number of collisions out of the standard collision window
(51.2 µs) experienced by the selected repeater, board, or port.
There are two conditions which can cause this type of error to
occur: either the network’s physical length exceeds IEEE 802.3
specifications, or a node on the net is transmitting without first
listening for carrier sense (and beginning its illegal
transmission more than 51.2 µs after the first station began
transmitting).
Nothing The Errors scale is not currently monitoring error packets.
NOTE For more detailed definitions of these statistics and information on the possible network
conditions they represent, consult the Enterasys Network Troubleshooting Guide,
included with this package.