18 Rockwell Automation Publication 1763-UM002E-EN-P - October 2015
Chapter 4 Monitor Diagnostics
Network Status
The Diagnostics → Network Status page presents a summary of the status of
communication activity on the Ethernet network. This summary includes:
• Ethernet network configuration.
• packets sent and received over the Ethernet network.
• frames sent and received over the Ethernet network.
This field Specifies
Interface Counters
Rx Octets Octets received on the Ethernet interface
Tx Octets Octets sent on the Ethernet interface
Rx Packets Packets received on the Ethernet interface
Tx Packets Packets sent on the Ethernet interface
Command Sent Command sent on the Ethernet interface
Command Received Command received on the Ethernet interface
Replies Sent Replies sent on the Ethernet interface
Replies Received Replies received on the Ethernet interface
Replies Sent with error Outbound packets that contain errors
Replies Received with error Inbound packets that contain errors
Replies Timed Out No reply within a specified time period
Media Counters
Single Collisions Successfully transmitted frames which experienced exactly one collision
Multiple Collisions Successfully transmitted frames which experienced more than one collision
Deferred Transmissions Frames for which first transmission attempt is delayed because the medium is busy
Late Collisions Number of times a collision is detected later than 512 bit-times into the transmission of a packet
Excessive Collisions Frames for which transmission fails due to excessive collisions
MAC Transmit Errors Frames for which transmission fails due to an internal MAC sublayer transmit error
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