Cisco Systems VPN 3002 Alignment Errors, FCS Errors, Carrier Sense Errors, SQE Test Errors, 13-54

Chapter 13 Monitoring

Monitoring Statistics MIB-II Ethernet

Alignment Errors

The number of frames received on this interface that are not an integral number of bytes in length and do not pass the FCS (Frame Check Sequence; used for error detection) check.

FCS Errors

The number of frames received on this interface that are an integral number of bytes in length but do not pass the FCS (Frame Check Sequence) check.

Carrier Sense Errors

The number of times that the carrier sense signal was lost or missing when trying to transmit a frame on this interface.

SQE Test Errors

The number of times that the SQE (Signal Quality Error) Test Error message was generated for this interface. The SQE message tests the collision circuits on an interface.

Frame Too Long Errors

The number of frames received on this interface that exceed the maximum permitted frame size.

Deferred Transmits

The number of frames for which the first transmission attempt on this interface is delayed because the medium is busy. This number does not include frames involved in collisions.

Single Collisions

The number of successfully transmitted frames on this interface for which transmission is inhibited by exactly one collision. This number is not included in the Multiple Collisions number.

Multiple Collisions

The number of successfully transmitted frames on this interface for which transmission is inhibited by more than one collision. This number does not include the Single Collisions number.

Late Collisions

The number of times that a collision is detected on this interface later than 512 bit-times into the transmission of a packet. 512 bit-times = 51.2 microseconds on a 10-Mbps system.

	VPN 3002 Hardware Client Reference
13-54	OL-1893-01