Users Guide

Layer 2 Switching Commands 430
When the errors parameter is provided, the following counters are displayed:
Transmitted Pause
Frames
Counted MAC Control frames transmitted on this
interface with an opcode indicating the PAUSE operation.
Received PFC Frames A count of the received Priority Flow Control (PFC)
frames.
Transmitted PFC
Frames
A count of the transmitted PFC frames.
Receive Packets
Discarded
Count of frames discarded on receipt due to any reason.
Transmit Packets
Discarded
Count of packets queued for transmission and discarded for
any reason.
Counters Description
Align-Err Alignment errors—Alignment errors are the count of
packets received which did not have an integral number of
octets. See RFC1271 etherStatsCRCAlignErrors for further
information. These are almost certainly physical
impairments (transceiver or cable) on a 10m link. Replace
the cable and transceivers.
FCS-Err Frame Check Sequence errors—FCS errors are the count of
packets received which did not have a valid CRC. See
RFC1271 etherStatsCRCAlignErrors for further
information. This indicates a physical impairment. Possible
causes include bad cables, not fully inserted cables, failed
transceivers, or incompatible settings (peers do not have
compatible settings).
Xmit-Err Total transmit errors—Transmit errors are the count of
packets queued for transmit but had an error during
transmission, such as jabber, FCS, fragment, or late
collision.
These errors may be seen in 10/100m legacy operation.
Jabber, fragment and late collision are 10/100m specific
errors.
Field Description