
| 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 Errors (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 |
| 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.
Repeater Statistics |