21-12 Sm artSwit ch 1800 4.0 U ser Gui de, Rev 01
●Packet Filters – (set in commands from the protocol) specifies the types of
packets that can be received on this interface (more than one category can be
specified:
◆Directed and Multicast or Group and Fuctional
◆Broadcast
◆Promiscuous (any packet on the LAN)
◆Any Source Packet (any source routing packet on the LAN)
●Packets In/Out – is the number of packets received/transmitted over the
interface.
●Bytes In/Out – is the number of bytes received/transmitted over the interface.
●Multi-Cast In/Out – is the number of packets received/transmitted via a multic ast
address over the interface.
●Broadcast In/Out – is the number of packets received/transmitted via a broadcast
address over the interface.
●Frm Drop ped In/ Out – is the number of incoming/outgoing frames that were
dropp ed.
●Q Droppe d In – is th e numb er of inco ming Q- packet s that were dr op ped.
●Dropped Timeout – is the number of transmitted frames that did not return due
to a timeout or reception of another frame.
●Erro rs In – is the number of errors received over the interface.
Ethernet-Specific Statistics
●Alignment Errors – is the number of frames with FCS (frame check sequence)
errors due to non-integral lengths.
●Xmt w/1 Coll – is the number of f rames that were transmitted after one collision
(with a f rame transmitted from another node).
●Overrun Errors – is the number of frames that were not accepted due to DMA
(direct memory access) overrun errors.
●Xmt w/mul Coll – is the number of frames that were transmitted after multiple
collisions.
●Xmt/Deferral – is the number of f ram es that were held up du e to tr affic from other
directions, then transmitted later.
●Xmt CD Heartbeat – is the number of frames that were transmitted containing a
CD (collision detection) signal.
●Not Xmt (Coll) – is the number of frames that were not transmitted due to colli-
sions.
●Frm w/lost CS – is the numb er of f rames th at ex perienced a loss of the CS (ca rrier
sense) signal at the receiving node.
●Late Collisions – is the number of transmitted frames that were involved in col-
lisions while outside the flow control window.
●Underruns – is the numb er of fra mes that were not accepted due to DMA (direct
memory access) underrun errors.