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Remote Network Monitoring (RMON) Commands
78-20269-01 Command Line Interface Reference Guide
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19
19.5
rmon alarm
Use the rmon alarm Global Configuration mode command to configure alarm
conditions. Use the no form of this command to remove an alarm.
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) 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). 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 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.
Field
Description