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7000 Series L3 Managed Switch Reference Manual for Software v2.0
7-6 Switching Commands
Packets Received with
MAC Errors
Total - The total number of inbound packets that contained errors
preventing them from being deliverable to a higher-layer proto-
col.
Jabbers Received - The total number of packets received that
were longer than 1518 octets (excluding framing bits, but includ-
ing 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 fram-
ing 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.
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
(i.e. 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 operation. This counter does not increment when the
interface is operating in half-duplex mode.