Enterasys 5G1XX Guía de usuario descargar pdf (Pagina 99)

Displaying Port Statistics

Network Monitoring Menu Screens 8-3

Parameter Description

Alignment Errors For 10 Mbps ports, this counter records alignment errors

(mis-synchronized data packets). For 100 Mbps ports, this

counter records the sum of alignment errors and code errors

(frames received with rxerror signal).

FCS Errors The number of frames received that are an integral number

of octets in length but do not pass the FCS check.

Single Collision Frames* The number of successfully transmitted frames for which

transmission is inhibited by exactly one collision.

Multiple Collision Frames* A count of successfully transmitted frames for which

transmission is inhibited by more that one collision.

SQE Test Errors* A count of times that the SQE TEST ERROR message is

generated by the PLS sublayer.

Deferred Transmissions* A count of frames for which the first transmission attempt

on a particular interface is delayed because the medium was

busy.

Late Collisions The number of times that a collision is detected later than

512 bit-times into the transmission of a packet.

Excessive Collisions* The number of frames for which transmission failed due to

excessive collisions.

Internal Mac Transmit Errors* The number of frames for which transmission failed due to

an internal MAC sublayer transmit error.

Carrier Sense Errors* The number of times that the carrier sense condition was lost

or never asserted when attempting to transmit a frame.

Frames Too Long The number of frames received that exceed the maximum

permitted frame size.

Internal Mac Receive Errors* The number of frames for which reception failed due to an

internal MAC sublayer receive error.

* The reported values will always be zero because these statistics are not supported by the internal chip

set.

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Enterasys 5G1XX Guía de usuario Pagina 99