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Kontron AT890X Full-Size CLI User Manual

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AT8901/2/3

Utility Commands

Page 5 - 11

AT8901/2/3 CLI Reference Manual

Total Packets Received Without Error - The total number of pack-
ets received that were without errors.
Unicast Packets Received - The number of subnetwork-unicast pack-
ets delivered to a higher-layer protocol.
Multicast Packets Received - The total number of good packets
received that were directed to a multicast address. Note that this num-
ber does not include packets directed to the broadcast address.
Broadcast Packets Received - The total number of good packets
received that were directed to the broadcast address. Note that this
does not include multicast packets.

Packets Received with MAC Errors

Total - The total number of inbound packets that contained errors pre-
venting them from being deliverable to a higher-layer protocol.
Jabbers Received - The total number of packets received that were
longer than 1518 octets (excluding framing bits, but including FCS
octets), and had either a bad Frame Check Sequence (FCS) with an
integral number of octets (FCS Error) or a bad FCS with a non-integral
number of octets (Alignment Error). Note that this definition of jabber
is different than the definition in IEEE-802.3 section 8.2.1.5
(10BASE5) and section 10.3.1.4 (10BASE2). These documents define
jabber as the condition where any packet exceeds 20 ms. The allowed
range to detect jabber is between 20 ms and 150 ms.
Fragments/Undersize Received - The total number of packets
received that were less than 64 octets in length (excluding framing bits
but including FCS octets).
Alignment Errors - The total number of packets received that had a
length (excluding framing bits, but including FCS octets) of between
64 and 1518 octets, inclusive, but had a bad Frame Check Sequence
(FCS) with a non-integral number of octets.
Rx FCS Errors - The total number of packets received that had a
length (excluding framing bits, but including FCS octets) of between
64 and 1518 octets, inclusive, but had a bad Frame Check Sequence
(FCS) with an integral number of octets
Overruns - The total number of frames discarded as this port was
overloaded with incoming packets, and could not keep up with the
inflow.

Received Packets Not Forwarded

Total - A count of valid frames received which were discarded (in
other words, filtered) by the forwarding process.
Local Traffic Frames - The total number of frames dropped in the
forwarding process because the destination address was located off of
this port.
802.3x Pause Frames Received - A count of MAC Control frames
received on this interface with an opcode indicating the PAUSE opera-
tion. This counter does not increment when the interface is operating
in half-duplex mode.