Information Technology Reference
In-Depth Information
Table4-6
show interfaces ethernet Field Descriptions (continued)
output errors
Gives the 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 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.
collisions
Gives the number of messages retransmitted due to an
Ethernet collision. This is usually the result of an
overextended LAN (Ethernet or transceiver cable too long,
more than two repeaters between stations, or too many
cascaded multiport transceivers). A packet that collides is
counted only once in output packets.
interface resets
Gives the number of times that an interface has been
completely reset. This can happen if packets queued for
transmission were not sent within several seconds. On a serial
line, this can be caused by a malfunctioning modem that is
not supplying the transmit clock signal, or by a cable
problem. If the system notices that the carrier detect line of a
serial interface is up, but the line protocol is down, it
periodically resets the interface in an effort to restart it.
Interface resets can also occur when an interface is looped
back or shut down.
restarts
Gives the number of times a Type 2 Ethernet controller was
restarted because of errors.
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