Cisco Nexus 5000 Series Interfaces Command Reference - Cisco Nexus 5000 Series Command Reference Manual

show interface loopback
Field
input errors
frame
overrun
fifo
packets output
bytes
underruns
output errors
collisions
fifo
This example shows how to display the brief information for a specific loopback interface:
switch# show interface loopback 10 brief
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Interface
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Cisco Nexus 5000 Series Interfaces Command Reference

122
Status Description
Description
Sum of all errors that prevented the receipt of
datagrams on the interface being examined. This may
not balance with the sum of the enumerated output
errors, because some datagrams may have more than
one error and others may have errors that do not fall
into any of the specifically tabulated categories.
Number of packets received incorrectly having a CRC
error and a noninteger number of octets. On a serial
line, this is usually the result of noise or other
transmission problems.
Number of times the serial receiver hardware was
unable to hand received data to a hardware buffer
because the input rate exceeded the receiver's ability
to handle the data.
Number of First In, First Out (FIFO) errors in the
receive direction.
Total number of messages transmitted by the system.
Total number of bytes, including data and MAC
encapsulation, transmitted by the system.
Number of times that the far-end transmitter has been
running faster than the near-end router's receiver can
handle. This may never happen (be reported) on some
interfaces.
Sum of all errors that prevented the final transmission
of datagrams out of the interface being examined.
Note that this may not balance with the sum of the
enumerated output errors, as some datagrams may
have more than one error, and others may have errors
that do not fall into any of the specifically tabulated
categories.
Loopback interface does not have collisions.
Number of First In, First Out (FIFO) errors in the
transmit direction.
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