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LevelOne GTL-2691 User Manual

Page 169

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C

HAPTER

5

| Interface Configuration

Port Configuration

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Transmitted Errors

The number of outbound packets that could not be transmitted

because of errors.

Received Unicast Packets The number of subnetwork-unicast packets delivered to a higher-

layer protocol.

Transmitted Unicast

Packets

The total number of packets that higher-level protocols requested

be transmitted to a subnetwork-unicast address, including those

that were discarded or not sent.

Received Discarded

Packets

The number of inbound packets which were chosen to be

discarded even though no errors had been detected to prevent

their being deliverable to a higher-layer protocol. One possible

reason for discarding such a packet could be to free up buffer

space.

Transmitted Discarded

Packets

The number of outbound packets which were chosen to be

discarded even though no errors had been detected to prevent

their being transmitted. One possible reason for discarding such a

packet could be to free up buffer space.

Received Multicast

Packets

The number of packets, delivered by this sub-layer to a higher

(sub-)layer, which were addressed to a multicast address at this

sub-layer.

Transmitted Multicast

Packets

The total number of packets that higher-level protocols requested

be transmitted, and which were addressed to a multicast address

at this sub-layer, including those that were discarded or not sent.

Received Broadcast

Packets

The number of packets, delivered by this sub-layer to a higher

(sub-)layer, which were addressed to a broadcast address at this

sub-layer.

Transmitted Broadcast

Packets

The total number of packets that higher-level protocols requested

be transmitted, and which were addressed to a broadcast address

at this sub-layer, including those that were discarded or not sent.

Received Unknown

Packets

The number of packets received via the interface which were

discarded because of an unknown or unsupported protocol.

Etherlike Statistics

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 than one collision.

Late Collisions

The number of times that a collision is detected later than 512 bit-

times into the transmission of a packet.

Excessive Collisions

A count of frames for which transmission on a particular interface

fails due to excessive collisions. This counter does not increment

when the interface is operating in full-duplex mode.

Deferred Transmissions

A count of frames for which the first transmission attempt on a

particular interface is delayed because the medium was busy.

Frames Too Long

A count of frames received on a particular interface that exceed

the maximum permitted frame size.

Alignment Errors

The number of alignment errors (missynchronized data packets).

FCS Errors

A count of frames received on a particular interface that are an

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

This count does not include frames received with frame-too-long

or frame-too-short error.

SQE Test Errors

A count of times that the SQE TEST ERROR message is generated

by the PLS sublayer for a particular interface.

Carrier Sense Errors

The number of times that the carrier sense condition was lost or

never asserted when attempting to transmit a frame.

Table 7: Port Statistics (Continued)

Parameter

Description