19．EtherNet/IP COMMUNICATION
This object holds a link-specific counter and the status information of the IEEE802.3 communication
interface. The description of each Attribute is as follows.
Last attribute ID of the class attribute
Last attribute ID of the instance attribute
Interface speed currently in use (10 Mbps or 100 Mbps)
Interface status flags (Refer to the following for details.)
Octets received on the interface
Unicast packets received on the interface
Non-unicast packets received on the interface
Inbound packets received on the interface but discarded
Inbound packets that contain errors (does not include In Discards)
Inbound packets with unknown protocol
Octets sent on the interface
Unicast packets sent on the interface
Non-unicast packets sent on the interface
Outbound packets discarded
Outbound packets that contain errors
Frames received that are not an integral number of octets in length
Frames received that do not pass the FCS check
Successfully transmitted frames which experienced exactly one collision
Successfully transmitted frames which experienced more than one collision
Number of times SQE test error message is generated
Frames for which first transmission attempt is delayed because the medium is busy
Number of times a collision is detected later than 512 bit-times into the transmission of a packet
Frames for which transmission fails due to an internal MAC sublayer transmission error
Times that the carrier sense condition was lost or never asserted when attempting to transmit a frame
Frames received that exceed the maximum permitted frame size
Frames for which reception on an interface fails due to an internal MAC sublayer receive error
Configuration for physical interface
Speed at which the interface shall be forced to operate
Type of interface: twisted pair, fiber, internal, etc
Current state of the interface: Operational, disabled, and etc
Administrative state: enable, disable
Human readable identification
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