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Statistics for BGE 10/100/1000 Ethernet interface

The ifstat command output displays several statistics when you use the command on the BGE 10/100/1000 Ethernet interface.

RECEIVE section statistics

The following table describes the statistics in the RECEIVE section of the ifstat command output when you use the command on the BGE 10/100/1000 Ethernet interface.

Statistic Meaning
Frames/second Rate of received frames per second.
Bytes/second Rate of received bytes per second.
Errors/minute Rate of errors (which led to frames being lost) per minute.
Discards/minute Rate per minute of packets discarded due to unavailable resources.
Total frames Total frames that are received on the interface.
Total bytes Total bytes that are received on the interface.
Total errors Total errors that occur on the interface.
Total discards Total number of packets that were discarded even though no errors were detected. This number is a sum of the "No buffers", "Bus overruns", and "Queue overflows" statistics.
Multi/broadcast Total number of multicast or broadcast packets received.
Alignment errors Number of frames that are both misaligned and contain CRC errors.
Non-primary u/c Number of Ethernet frames received for the partner's MAC address after a failover in a cluster configuration.
Tag drop Number of tagged frames dropped on an interface that is not configured to support VLAN tagging.
Vlan tag drop Number of tagged frames dropped that do not match the VLAN tags configured on the interface.
Vlan untag drop Number of untagged frames dropped on an interface that is configured to be part of a VLAN.
CRC errors Number of packets received with bad CRC.
Runt frames Number of received frames that were less than the minimum size (64 bytes) and had a valid CRC.
Fragment Number of received frames that were less than the minimum size and had a bad CRC.
Long frames Number of received frames that were greater than the maximum size and had a valid CRC.
Jabber Number of received frames that were greater than the maximum size and had a bad CRC.
No buffer Number of times the driver could not allocate a buffer and a packet was dropped. This might happen when your storage system is very busy. If the count increases continually, it might indicate that a software component is not returning buffers.
Xon Number of XON frames received when receive or full flow control is enabled.
Xoff Number of XOFF frames received when receive or full flow control is enabled.
Jumbo Number of good packets received that were larger than the standard Ethernet packet size when jumbo frames are enabled.
Ring full Not used. Ignore.
Jumbo error Error detected while processing a jumbo packet. Packet is discarded.

TRANSMIT section statistics

The following table describes the statistics in the TRANSMIT section of the ifstat command output when you use the command on the BGE 10/100/1000 Ethernet interface.

Statistic Meaning
Frames/second Rate of transmitted frames per second.
Bytes/second Rate of transmitted bytes per second.
Errors/minute Rate of errors (which led to frames being lost) per minute.
Discards/minute Rate per minute of packets discarded due to unavailable resources.
Total frames Total frames that are transmitted on the interface.
Total bytes Total bytes that are transmitted on the interface.
Total errors Total errors that occur on the interface.
Total discards Total number of packets that were discarded even though no errors were detected. This number is a sum of the "No buffers" and "Queue overflows" statistics.
Multi/broadcast Total number of multicast or broadcast packets transmitted.
No buffers Number of times the driver failed to allocate a buffer for the transmit packet.
Queue overflow Number of outgoing packets dropped because the driver's queue was full. It might indicate a system problem.
Max collisions Number of frames that were not transmitted because they encountered the maximum number of allowed collisions. Only valid in half-duplex mode.
Single collision Number of frames that encountered exactly one collision. Only valid in half-duplex mode.
Multi collisions Number of frames that encountered more than one collision, but less than the maximum allowed. Only valid in half-duplex mode.
Late collisions Number of collisions that occurred outside the collision window. Only valid in half-duplex mode.
Xon Number of XON frames transmitted when send or full flow control is enabled.
Xoff Number of XOFF frames transmitted when send or full flow control is enabled.
Jumbo Number of packets transmitted that were larger than the standard Ethernet packet size when jumbo frames are enabled.
Deferred Number of frames for which the first transmission was delayed because the medium was busy.
MAC Internal Number of frames not transmitted due to an internal MAC sublayer error.

LINK INFO section statistics

The following table describes the statistics in the LINK INFO section of the ifstat command output when you use the command on the BGE 10/100/1000 Ethernet interface.

Statistic Meaning
Current state Current state of the interface:
  • up or down—The state of the link.
  • cfg_down —The interface is configured down.
  • enabling—The interface is coming up.
Up to downs Number of times the link toggled between up and down.
Speed Speed of link negotiated or set.
Duplex Duplex of the link negotiated or set.
Flow control The operational flow control setting.