Software Status
Indicates whether the interface has
been enabled or disabled by the operator.
Hardware Status
Indicates whether the line protocol
for the interface is up or down. Normally, if the
Software Status is enabled, the Hardware Status will
be up. An error condition is indicated if the Software
Status is Enabled and the Hardware Status is Down.
Maximum Rate
The rate setting for the ethernet
interface, either 10 Mbps or 100 Mbps.
Duplex
The duplex setting for the ethernet
interface, either half or full.
Interface Resets
The number of times an interface
has been completely reset. This reset occurs if packets
queued for transmission were not sent within several
seconds. This disruption may be caused by a malfunctioning
modem that is not supplying the transmit clock signal
or a cable problem on the serial line. If the system
notices that the carrier detect line of a serial interface
is operational but the line protocol is not, 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.
No Carrier
The number of times the carrier was
not present during the transmission.
Lost Carrier
The number of times the carrier was
lost during transmission.
5 min Input Rate (bits/sec)
The average number of bits per second
transmitted in the last 5 minutes.
5 min Input Rate (packets/sec)
The average number of packets per
second transmitted in the last 5 minutes.
Time Since Last Input
The number of hours, minutes, and
seconds since the last packet was successfully received
by an interface. Knowing this time helps you determine
the traffic load on the interface and locate network
problems.
Total Packets Input
The total number of error-free packets
received by the system.
Total Bytes Input
The total number of bytes, including
data and MAC encapsulation, received by the system.
Broadcast Packets
The total number of broadcast packet
received by the interface.
5 min Output Rate (bits/sec)
The average number of bits transmitted
per second in the last 5 minutes.
5 min Output
Rate (packets/sec)
The average number of packets transmitted
per second in the last 5 minutes.
Time Since Last Output
The number of hours, minutes, and
seconds since the last packet was successfully transmitted
by the interface. Knowing this time helps you determine
the traffic load on the interface and locate network
problems.
Total Packets Output
The total number of messages transmitted
by the system.
Total Bytes
Output
The total number of bytes, including
data and MAC encapsulation, transmitted by the system.
Total Input Errors
The total number of input-related
errors that occurred, including runts, giants, no
buffer, CRC, frame, overrun, and ignored counts.
Overrun
Errors
The number of times the receiver
hardware was unable to send received data to a hardware
buffer because the input rate exceeded the receiver's
ability to process the data.
Ignored Packets
The number of received packets ignored
by the interface because the interface hardware ran
low on internal buffers. Broadcast storms and bursts
of noise can cause the ignored count to be increased.
Framing Errors
The number of packets received incorrectly
having a CRC error and non-integer number of octets.
These errors occur on a LAN as a result of a collision
or malfunctioning Ethernet device.
CRC Errors
Cyclic redundancy checksum generated
by the originating LAN station or far-end bridge that
does not match the checksum calculated from the data
received. These errors indicate noise or transmission
problems on the LAN interface or LAN bus itself. A
high number of CRC errors usually results in collisions
or the transmission of bad data.
Packet too
Short (Runts)
The number of packets that are discarded
because they are smaller than the medium's minimum
packet size. For example, any Ethernet packet that
is less than 64 bytes is considered a runt.
Packet too
Long (Giants)
The number of packets that are discarded
because they exceed the medium's maximum packet size.
For example, any Ethernet packet that is greater than
1,518 bytes is considered a giant.
Throttles
The number of times the receiver
on the port was disabled, possibly due to buffer or
processor overload.
Total Output Errors
The sum of all errors that prevented
the final transmission of datagrams from being examined.
Underrun
Errors
The number of times the transmitter
has run faster than the router can handle.
Deferred
Packets
The number of times the chip had
to defer while ready to transmit a frame because the
carrier was asserted.
Babbles
The number of times the transmit
jabber time expired.
Collisions
The number of messages retransmitted
because of an Ethernet collision (only applicable
in half duplex).
Late Collisions
The number of late collisions. This
collision usually results from an overextended LAN
where the Ethernet or transceiver cable is too long,
where too many cascaded multiport transceivers are
used, or where more than two repeaters are used between
stations.
Last Output Hang
The number of hours, minutes, and
seconds (or never) since the interface was last reset
because of a transmission that took too long. When
the number of hours in Time Since Last Input, Time
Since Last Output, or Last Output Hang fields exceeds
24, the number of days and hours is printed.