Communicating with Devices on an Ethernet Network

11-19

 

 

Details of each counter on the General Ethernet Counters page are described in the following table.

This Counter

Totals

Commands Sent

number of PCCC (programmable controller communication commands)

 

sent by the module

 

 

Replies Sent

number of PCCC replies sent by the module

 

 

Command Received

number of PCCC commands received by the module

 

 

Replies Received

number of PCCC replies received by the module

 

 

Replies Sent with Error

number of PCCC replies with error status sent by the module

 

 

Replies Received with Error

number of PCCC replies with error status received by the module

 

 

Replies Timed Out

number of PCCC replies that were not received within the time period

 

specified on the Ethernet Configuration page

 

 

In Octets

number of octets received by the module

 

 

Out Octets

number of octets sent by the module

 

 

In Packets

number of packets received by the module, including broadcast

 

packets

 

 

Out Packets

number of packets send by the module, including broadcast packets

 

 

Alignment Errors

count of frames received that are not an integral number of octets in

 

length

 

 

FCS Errors

count of frames that do not pass the FCS check

 

 

Carrier Sense Errors

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

 

asserted when attempting to transmit a frame

 

 

Excessive Collisions

count of frames when transmission fails caused by excessive

 

collisions

 

 

Excessive Deferrals

count of frames when transmission is deferred for an excessive period

 

of time

 

 

MAC Receive Errors

count of frames when transmission fails because of an internal MAC

 

sublayer receive error

 

 

MAC Transmit Errors

count of frames when transmission fails because of internal MAC

 

sublayer transmit error

 

 

Single Collisions

count of successfully transmitted frames when transmission is

 

inhibited by one collision

 

 

Multiple Collisions

count of successfully transmitted frames when transmission is

 

inhibited by more than one collision

 

 

Deferred Transmissions

count of frames when the first transmission attempt is delayed

 

because the medium is busy

 

 

Late Collisions

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

 

into the transmission of a packet

 

 

Packet Storms

number of times the SONIC driver has entered storm or throttle back

 

operation due to excessive traffic

 

 

6.At the bottom of the General Ethernet Counters page, click on

Diagnostic Information to return to that page.

Publication 1785-UM012D-EN-P - July 2005

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