316 RMON Commands
The following table describes the significant fields shown in the display:
Field Description
Time Date and Time the entry is recorded.
Octets The total number of octets of data (including those in bad packets) received on the
network (excluding framing bits but including FCS octets).
Packets The number of packets (including bad packets) received during this sampling interval.
Broadcast The number of good packets received during this sampling interval that were directed to
the Broadcast address.
Multicast The number of good packets received during this sampling interval that were directed to
a Multicast address. This number does not include packets addressed to the Broadcast
address.
Utilization% The best estimate of the mean physical layer network utilization on this interface during
this sampling interval, in hundredths of a percent.
CRC Align The number of packets received during this sampling interval that had a length
(excluding framing bits but including FCS octets) between 64 and 1518 octets, inclusive,
but 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).
Undersize The number of packets received during this sampling interval that were less than 64
octets long (excluding framing bits but including FCS octets) and were otherwise well
formed.
Oversize The number of packets received during this sampling interval that were longer than 1518
octets (excluding framing bits but including FCS octets) but were otherwise well formed.
Fragments The total number of packets received during this sampling interval that were less than 64
octets in length (excluding framing bits but including FCS octets) 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 (AlignmentError). It is normal for
etherHistoryFragments to increment because it counts both runts (which are normal
occurrences due to collisions) and noise hits.
Jabbers The number of packets received during this sampling interval 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).
Dropped The total number of events in which packets were dropped by the probe due to lack of
resources during this sampling interval. This number is not necessarily the number of
packets dropped, it is just the number of times this condition has been detected.
Collisions The best estimate of the total number of collisions on this Ethernet segment during this
sampling interval.
5400_CLI.book Page 316 Wednesday, December 17, 2008 4:33 PM
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