NS3000/iX Operations and Maintenance Reference Manual (36922-90042)

214 AppendixA
LINKCONTROL Command
NS 3000/iX 100Base-T Link Statistics
Receives / Receives Unicast — Total number of unicast frames
(addressed to this specific adapter card) which were successfully
received over the medium and forwarded to an upper layer protocol
such as IP. This includes unicast frames that were successfully received
on the first attempt, as well as unicast frames that were successfully
received after being deferred, or that experienced one or more collisions.
It does not include unicast frames received but dropped for any reason.
The maximum printable value of this 64-bit field is 17 digits, or about
99 million billion frames. In the previous example, 113968 unicast
frames were received and forwarded to upper layers.
NOTE This has been renamed “Receives Unicast” in the PCI statistics display
to better distinguish this statistic from the other receive statistics, but
the meaning is the same as before.
Receives broadcast — Total number of frames addressed to a
broadcast address which were successfully received over the medium
and forwarded to an upper layer protocol such as IP. This includes
broadcast frames that were successfully received on the first attempt,
as well as broadcast frames that were successfully received after being
deferred, or that experienced one or more collisions. It does not include
broadcast frames received but dropped for any reason. The maximum
printable value of this 64-bit field is 17 digits, or about 99 million billion
frames. In the previous example, 3.96 million broadcast frames were
received and forwarded to upper layers.
Receives multicast — Total number of frames addressed to a
multicast address which were successfully received over the medium
and forwarded to an upper layer protocol such as IP. This includes
multicast frames that were successfully received on the first attempt,
as well as multicast frames that were successfully received after being
deferred, or that experienced one or more collisions. It does not include
multicast frames received but dropped for any reason. The maximum
printable value of this 64-bit field is 17 digits, or about 99 million billion
frames. In the previous example, 1.74 million multicast frames were
received and forwarded to upper layers.
Receives no error — Total number of frames the adapter card reports
it successfully received over the medium. These adapter card statistics
are periodically read, and are accumulated by the link driver. This
includes all address-matched unicast, broadcast, and multicast frames
received without error. It does not include frames not addressed to the
adapter card, frames dropped for any reason, or any frames the card
detected errors against. The total should approximate the sum of all
frames forwarded to upper layer protocols. The maximum printable
value of this 64-bit field is 17 digits, or about 99 million billion frames.
In the example above, 15.7 million frames were received successfully by
the adapter card, then either forwarded or dropped.