Alcatel Carrier Internetworking Solutions OmniStack 6300-24 User Manual

Page 135

Advertising
background image

Port Configuration

3-95

3

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.

Single Collision Frames

The number of successfully transmitted frames for which transmission is

inhibited by exactly one collision.

Internal MAC Transmit Errors

A count of frames for which transmission on a particular interface fails due

to an internal MAC sublayer transmit error.

Multiple Collision Frames

A count of successfully transmitted frames for which transmission is

inhibited by more than one collision.

Carrier Sense Errors

The number of times that the carrier sense condition was lost or never

asserted when attempting to transmit a frame.

SQE Test Errors

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

PLS sublayer for a particular interface.

Frames Too Long

A count of frames received on a particular interface that exceed the

maximum permitted frame size.

Deferred Transmissions

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

interface is delayed because the medium was busy.

Internal MAC Receive Errors

A count of frames for which reception on a particular interface fails due to

an internal MAC sublayer receive error.

RMON Statistics

Drop Events

The total number of events in which packets were dropped due to lack of

resources.

Jabbers

The total number of frames received that were longer than 1518 octets

(excluding framing bits, but including FCS octets), and had either an FCS

or alignment error.

Received Bytes

Total number of bytes of data received on the network. This statistic can

be used as a reasonable indication of Ethernet utilization.

Collisions

The best estimate of the total number of collisions on this Ethernet

segment.

Received Frames

The total number of frames (bad, broadcast and multicast) received.

Broadcast Frames

The total number of good frames received that were directed to the

broadcast address. Note that this does not include multicast packets.

Multicast Frames

The total number of good frames received that were directed to this

multicast address.

CRC/Alignment Errors

The number of CRC/alignment errors (FCS or alignment errors).

Undersize Frames

The total number of frames received that were less than 64 octets long

(excluding framing bits, but including FCS octets) and were otherwise well

formed.

Oversize Frames

The total number of frames received that were longer than 1518 octets

(excluding framing bits, but including FCS octets) and were otherwise well

formed.

Table 3-54. Displaying Port Statistics

Parameter

Description

Advertising