Rockwell Automation 1734-AENTR EtherNet/IP Network Configuration User Manual - Manual (Page 120)

120 Rockwell Automation Publication ENET-UM001L-EN-P - March 2014
Chapter 9 Diagnostic Web Pages
Media Counters Port 1
Alignment Errors A frame containing bits that do not total an integral multiple of eight.
FCS Errors A frame containing eight bits, at least one of which has been corrupted.
Single Collisions The number of outgoing packets that encountered only one collision during transmission.
Multiple Collisions The number of outgoing packets that encountered 2...15 collisions during transmission.
SQE Test Errors A test to detect the collision-present circuit between a transceiver and a network interface card (NIC).
IMPORTANT: Because most NICs now have an integrated transceiver, the SQE test is unnecessary. Ignore this media
counter.
Deferred Transmissions The number of outgoing packets whose transmission is deferred because the network is busy when the first attempt is
made to send them.
Late Collisions The number of times two devices transmit data simultaneously.
Excessive Collisions The number of frames that experience 16 consecutive collisions.
MAC Transmit Errors Frames for which transmission fails due to an internal MAC sublayer transmit error.
Carrier Sense Errors Times that the carrier sense condition was lost or never asserted when attempting to transmit a frame.
Frame Too Long The number of incoming packets that exceed the maximum Ethernet packet size.
MAC Receive Errors Frames for which reception on the Ethernet interface failed due to an internal MAC sublayer receive error.
Table 30 - Ethernet Statistics Web Page
Field Specifies