MIB MODULE DETAILS RFC1271-MIB


etherStatsIndex

Registration:  1.3.6.1.2.1.16.1.1.1.1
Access:        read-only
Reference:     None
Description:  

The value of this object uniquely identifies this
etherStats entry.

etherStatsDataSource

Registration:  1.3.6.1.2.1.16.1.1.1.2
Access:        read-write
Reference:     None
Description:  

This object identifies the source of the data that
this etherStats entry is configured to analyze. This
source can be any ethernet interface on this device.
In order to identify a particular interface, this
object shall identify the instance of the ifIndex
object, defined in [4,6], for the desired interface.
For example, if an entry were to receive data from
interface #1, this object would be set to ifIndex.1.

The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.

This object may not be modified if the associated
etherStatsStatus object is equal to valid(1).

etherStatsDropEvents

Registration:  1.3.6.1.2.1.16.1.1.1.3
Access:        read-only
Reference:     None
Description:  

The total number of events in which packets
were dropped by the probe due to lack of resources.
Note that this number is not necessarily the number of
packets dropped; it is just the number of times this
condition has been detected.

etherStatsOctets

Registration:  1.3.6.1.2.1.16.1.1.1.4
Access:        read-only
Reference:     None
Description:  

The total number of octets of data (including
those in bad packets) received on the
network (excluding framing bits but including
FCS octets).

etherStatsPkts

Registration:  1.3.6.1.2.1.16.1.1.1.5
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error packets)
received.

etherStatsBroadcastPkts

Registration:  1.3.6.1.2.1.16.1.1.1.6
Access:        read-only
Reference:     None
Description:  

The total number of good packets received that were
directed to the broadcast address.

etherStatsMulticastPkts

Registration:  1.3.6.1.2.1.16.1.1.1.7
Access:        read-only
Reference:     None
Description:  

The total number of good packets received that were
directed to a multicast address. Note that this
number does not include packets directed to the
broadcast address.

etherStatsCRCAlignErrors

Registration:  1.3.6.1.2.1.16.1.1.1.8
Access:        read-only
Reference:     None
Description:  

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 were not an integral number
of octets in length or had a bad Frame Check
Sequence (FCS).

etherStatsUndersizePkts

Registration:  1.3.6.1.2.1.16.1.1.1.9
Access:        read-only
Reference:     None
Description:  

The total number of packets received that were
less than 64 octets long (excluding framing bits,
but including FCS octets) and were otherwise well
formed.

etherStatsOversizePkts

Registration:  1.3.6.1.2.1.16.1.1.1.10
Access:        read-only
Reference:     None
Description:  

The total number of packets received that were
longer than 1518 octets (excluding framing bits,
but including FCS octets) and were otherwise
well formed.

etherStatsFragments

Registration:  1.3.6.1.2.1.16.1.1.1.11
Access:        read-only
Reference:     None
Description:  

The total number of packets received that were not an
integral number of octets in length or that had a bad
Frame Check Sequence (FCS), and were less than 64
octets in length (excluding framing bits but
including FCS octets).

etherStatsJabbers

Registration:  1.3.6.1.2.1.16.1.1.1.12
Access:        read-only
Reference:     None
Description:  

The total number of packets received that were
longer than 1518 octets (excluding framing bits,
but including FCS octets), and were not an
integral number of octets in length or had
a bad Frame Check Sequence (FCS).

etherStatsCollisions

Registration:  1.3.6.1.2.1.16.1.1.1.13
Access:        read-only
Reference:     None
Description:  

The best estimate of the total number of collisions
on this Ethernet segment.

etherStatsPkts64Octets

Registration:  1.3.6.1.2.1.16.1.1.1.14
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error
packets) received that were 64 octets in length
(excluding framing bits but including FCS octets).

etherStatsPkts65to127Octets

Registration:  1.3.6.1.2.1.16.1.1.1.15
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error
packets) received that were between
65 and 127 octets in length inclusive
(excluding framing bits but including FCS octets).

etherStatsPkts128to255Octets

Registration:  1.3.6.1.2.1.16.1.1.1.16
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error
packets) received that were between
128 and 255 octets in length inclusive
(excluding framing bits but including FCS octets).

etherStatsPkts256to511Octets

Registration:  1.3.6.1.2.1.16.1.1.1.17
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error
packets) received that were between
256 and 511 octets in length inclusive
(excluding framing bits but including FCS octets).

etherStatsPkts512to1023Octets

Registration:  1.3.6.1.2.1.16.1.1.1.18
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error
packets) received that were between
512 and 1023 octets in length inclusive
(excluding framing bits but including FCS octets).

etherStatsPkts1024to1518Octets

Registration:  1.3.6.1.2.1.16.1.1.1.19
Access:        read-only
Reference:     None
Description:  

The total number of packets (including error
packets) received that were between
1024 and 1518 octets in length inclusive
(excluding framing bits but including FCS octets).

etherStatsOwner

Registration:  1.3.6.1.2.1.16.1.1.1.20
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is
therefore using the resources assigned to it.

etherStatsStatus

Registration:  1.3.6.1.2.1.16.1.1.1.21
Access:        read-write
Reference:     None
Description:  

The status of this etherStats entry.

historyControlIndex

Registration:  1.3.6.1.2.1.16.2.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in the
historyControl table. Each such entry defines a
set of samples at a particular interval for an
interface on the device.

historyControlDataSource

Registration:  1.3.6.1.2.1.16.2.1.1.2
Access:        read-write
Reference:     None
Description:  

This object identifies the source of the data for
which historical data was collected and
placed in a media-specific table on behalf of this
historyControlEntry. This source can be any
interface on this device. In order to identify
a particular interface, this object shall identify
the instance of the ifIndex object, defined
in [4,6], for the desired interface. For example,
if an entry were to receive data from interface #1,
this object would be set to ifIndex.1.

The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.

This object may not be modified if the associated
historyControlStatus object is equal to valid(1).

historyControlBucketsRequested

Registration:  1.3.6.1.2.1.16.2.1.1.3
Access:        read-write
Reference:     None
Description:  

The requested number of discrete time intervals
over which data is to be saved in the part of the
media-specific table associated with this
historyControl entry.

When this object is created or modified, the probe
should set historyControlBucketsGranted as closely to
this object as is possible for the particular probe
implementation and available resources.

historyControlBucketsGranted

Registration:  1.3.6.1.2.1.16.2.1.1.4
Access:        read-only
Reference:     None
Description:  

The number of discrete sampling intervals
over which data shall be saved in the part of
the media-specific table associated with this
historyControl entry.

When the associated historyControlBucketsRequested
object is created or modified, the probe
should set this object as closely to the requested
value as is possible for the particular
probe implementation and available resources. The
probe must not lower this value except as a result
of a modification to the associated
historyControlBucketsRequested object.

There will be times when the actual number of
buckets associated with this entry is less than
the value of this object. In this case, at the
end of each sampling interval, a new bucket will
be added to the media-specific table.

When the number of buckets reaches the value of
this object and a new bucket is to be added to the
media-specific table, the oldest bucket associated
with this historyControlEntry shall be deleted by
the agent so that the new bucket can be added.

When the value of this object changes to a value less
than the current value, entries are deleted
from the media-specific table associated with this
historyControlEntry. Enough of the oldest of these
entries shall be deleted by the agent so that their
number remains less than or equal to the new value of
this object.

When the value of this object changes to a value
greater than the current value, the number of
associated media-specific entries may be allowed
to grow.

historyControlInterval

Registration:  1.3.6.1.2.1.16.2.1.1.5
Access:        read-write
Reference:     None
Description:  

The interval in seconds over which the data is
sampled for each bucket in the part of the
media-specific table associated with this
historyControl entry. This interval can
be set to any number of seconds between 1 and
3600 (1 hour).

Because the counters in a bucket may overflow at their
maximum value with no indication, a prudent manager
will take into account the possibility of overflow
in any of the associated counters. It is important
to consider the minimum time in which any counter
could overflow on a particular media type and set
the historyControlInterval object to a value less
than this interval. This is typically most
important for the 'octets' counter in any
media-specific table. For example, on an Ethernet
network, the etherHistoryOctets counter could overflow
in about one hour at the Ethernet's maximum
utilization.

This object may not be modified if the associated
historyControlStatus object is equal to valid(1).

historyControlOwner

Registration:  1.3.6.1.2.1.16.2.1.1.6
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is therefore
using the resources assigned to it.

historyControlStatus

Registration:  1.3.6.1.2.1.16.2.1.1.7
Access:        read-write
Reference:     None
Description:  

The status of this historyControl entry.

Each instance of the media-specific table associated
with this historyControlEntry will be deleted by the
agent if this historyControlEntry is not equal to
valid(1).

etherHistoryIndex

Registration:  1.3.6.1.2.1.16.2.2.1.1
Access:        read-only
Reference:     None
Description:  

The history of which this entry is a part. The
history identified by a particular value of this
index is the same history as identified
by the same value of historyControlIndex.

etherHistorySampleIndex

Registration:  1.3.6.1.2.1.16.2.2.1.2
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies the particular
sample this entry represents among all samples
associated with the same historyControlEntry.
This index starts at 1 and increases by one
as each new sample is taken.

etherHistoryIntervalStart

Registration:  1.3.6.1.2.1.16.2.2.1.3
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime at the start of the interval
over which this sample was measured. If the probe
keeps track of the time of day, it should start
the first sample of the history at a time such that
when the next hour of the day begins, a sample is
started at that instant. Note that following this
rule may require the probe to delay collecting the
first sample of the history, as each sample must be
of the same interval. Also note that the sample which
is currently being collected is not accessible in this
table until the end of its interval.

etherHistoryDropEvents

Registration:  1.3.6.1.2.1.16.2.2.1.4
Access:        read-only
Reference:     None
Description:  

The total number of events in which packets
were dropped by the probe due to lack of resources
during this interval. Note that this number is not
necessarily the number of packets dropped, it is just
the number of times this condition has been detected.

etherHistoryOctets

Registration:  1.3.6.1.2.1.16.2.2.1.5
Access:        read-only
Reference:     None
Description:  

The total number of octets of data (including
those in bad packets) received on the
network (excluding framing bits but including
FCS octets).

etherHistoryPkts

Registration:  1.3.6.1.2.1.16.2.2.1.6
Access:        read-only
Reference:     None
Description:  

The number of packets (including error packets)
received during this sampling interval.

etherHistoryBroadcastPkts

Registration:  1.3.6.1.2.1.16.2.2.1.7
Access:        read-only
Reference:     None
Description:  

The number of good packets received during this
sampling interval that were directed to the
broadcast address.

etherHistoryMulticastPkts

Registration:  1.3.6.1.2.1.16.2.2.1.8
Access:        read-only
Reference:     None
Description:  

The number of good packets received during this
sampling interval that were directed to a
multicast address. Note that this number does not
include packets addressed to the broadcast address.

etherHistoryCRCAlignErrors

Registration:  1.3.6.1.2.1.16.2.2.1.9
Access:        read-only
Reference:     None
Description:  

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 were not an
integral number of octets in length or had a
bad Frame Check Sequence (FCS).

etherHistoryUndersizePkts

Registration:  1.3.6.1.2.1.16.2.2.1.10
Access:        read-only
Reference:     None
Description:  

The number of packets received during this
interval that were less than 64 octets long
(excluding framing bits but including FCS
octets) and were otherwise well formed.

etherHistoryOversizePkts

Registration:  1.3.6.1.2.1.16.2.2.1.11
Access:        read-only
Reference:     None
Description:  

The number of packets received during this
interval that were longer than 1518 octets
(excluding framing bits but including FCS
octets) but were otherwise well formed.

etherHistoryFragments

Registration:  1.3.6.1.2.1.16.2.2.1.12
Access:        read-only
Reference:     None
Description:  

The total number of packets received during this
sampling interval that were not an integral
number of octets in length or that
had a bad Frame Check Sequence (FCS), and
were less than 64 octets in length (excluding
framing bits but including FCS octets).

etherHistoryJabbers

Registration:  1.3.6.1.2.1.16.2.2.1.13
Access:        read-only
Reference:     None
Description:  

The number of packets received during this
interval that were longer than 1518 octets
(excluding framing bits but including FCS octets),
and were not an integral number of octets in
length or had a bad Frame Check Sequence (FCS).

etherHistoryCollisions

Registration:  1.3.6.1.2.1.16.2.2.1.14
Access:        read-only
Reference:     None
Description:  

The best estimate of the total number of collisions
on this Ethernet segment during this interval.

etherHistoryUtilization

Registration:  1.3.6.1.2.1.16.2.2.1.15
Access:        read-only
Reference:     None
Description:  

The best estimate of the mean physical layer
network utilization on this interface during this
interval, in hundredths of a percent.

alarmIndex

Registration:  1.3.6.1.2.1.16.3.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in the
alarm table. Each such entry defines a
diagnostic sample at a particular interval
for an object on the device.

alarmInterval

Registration:  1.3.6.1.2.1.16.3.1.1.2
Access:        read-write
Reference:     None
Description:  

The interval in seconds over which the data is
sampled and compared with the rising and falling
thresholds. When setting this variable, care
should be given to ensure that the variable being
monitored will not exceed 2^31 - 1 and roll
over the alarmValue object during the interval.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmVariable

Registration:  1.3.6.1.2.1.16.3.1.1.3
Access:        read-write
Reference:     None
Description:  

The object identifier of the particular variable to
be sampled. Only variables that resolve to an ASN.1
primitive type of INTEGER (INTEGER, Counter, Gauge,
or TimeTicks) may be sampled.

Because SNMP access control is articulated entirely
in terms of the contents of MIB views, no access
control mechanism exists that can restrict the value of
this object to identify only those objects that exist
in a particular MIB view. Because there is thus no
acceptable means of restricting the read access that
could be obtained through the alarm mechanism, the
probe must only grant write access to this object in
those views that have read access to all objects on
the probe.

During a set operation, if the supplied variable
name is not available in the selected MIB view, a
badValue error must be returned. If at any time
the variable name of an established alarmEntry is
no longer available in the selected MIB view, the
probe must change the status of this alarmEntry
to invalid(4).

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmSampleType

Registration:  1.3.6.1.2.1.16.3.1.1.4
Access:        read-write
Reference:     None
Description:  

The method of sampling the selected variable and
calculating the value to be compared against the
thresholds. If the value of this object is
absoluteValue(1), the value of the selected variable
will be compared directly with the thresholds at the
end of the sampling interval. If the value of this
object is deltaValue(2), the value of the selected
variable at the last sample will be subtracted from
the current value, and the difference compared with
the thresholds.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmValue

Registration:  1.3.6.1.2.1.16.3.1.1.5
Access:        read-only
Reference:     None
Description:  

The value of the statistic during the last sampling
period. The value during the current sampling period
is not made available until the period is completed.

alarmStartupAlarm

Registration:  1.3.6.1.2.1.16.3.1.1.6
Access:        read-write
Reference:     None
Description:  

The alarm that may be sent when this entry is first
set to valid. If the first sample after this entry
becomes valid is greater than or equal to the
risingThreshold and alarmStartupAlarm is equal to
risingAlarm(1) or risingOrFallingAlarm(3), then a
single rising alarm will be generated. If the first
sample after this entry becomes valid is less than
or equal to the fallingThreshold and
alarmStartupAlarm is equal to fallingAlarm(2) or
risingOrFallingAlarm(3), then a single falling
alarm will be generated.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmRisingThreshold

Registration:  1.3.6.1.2.1.16.3.1.1.7
Access:        read-write
Reference:     None
Description:  

A threshold for the sampled statistic. When the
current sampled value is greater than or equal to
this threshold, and the value at the last sampling
interval was less than this threshold, a single
event will be generated.
A single event will also be generated if the first
sample after this entry becomes valid is greater
than or equal to this threshold and the associated
alarmStartupAlarm is equal to risingAlarm(1) or
risingOrFallingAlarm(3).

After a rising event is generated, another such event
will not be generated until the sampled value
falls below this threshold and reaches the
alarmFallingThreshold.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmFallingThreshold

Registration:  1.3.6.1.2.1.16.3.1.1.8
Access:        read-write
Reference:     None
Description:  

A threshold for the sampled statistic. When the
current sampled value is less than or equal to
this threshold, and the value at the last sampling
interval was greater than this threshold, a single
event will be generated.
A single event will also be generated if the first
sample after this entry becomes valid is less than or
equal to this threshold and the associated
alarmStartupAlarm is equal to fallingAlarm(2) or
risingOrFallingAlarm(3).

After a falling event is generated, another such event
will not be generated until the sampled value
rises above this threshold and reaches the
alarmRisingThreshold.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmRisingEventIndex

Registration:  1.3.6.1.2.1.16.3.1.1.9
Access:        read-write
Reference:     None
Description:  

The index of the eventEntry that is
used when a rising threshold is crossed. The
eventEntry identified by a particular value of
this index is the same as identified by the same value
of the eventIndex object. If there is no
corresponding entry in the eventTable, then
no association exists. In particular, if this value
is zero, no associated event will be generated, as
zero is not a valid event index.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmFallingEventIndex

Registration:  1.3.6.1.2.1.16.3.1.1.10
Access:        read-write
Reference:     None
Description:  

The index of the eventEntry that is
used when a falling threshold is crossed. The
eventEntry identified by a particular value of
this index is the same as identified by the same value
of the eventIndex object. If there is no
corresponding entry in the eventTable, then
no association exists. In particular, if this value
is zero, no associated event will be generated, as
zero is not a valid event index.

This object may not be modified if the associated
alarmStatus object is equal to valid(1).

alarmOwner

Registration:  1.3.6.1.2.1.16.3.1.1.11
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is
therefore using the resources assigned to it.

alarmStatus

Registration:  1.3.6.1.2.1.16.3.1.1.12
Access:        read-write
Reference:     None
Description:  

The status of this alarm entry.

hostControlIndex

Registration:  1.3.6.1.2.1.16.4.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in the
hostControl table. Each such entry defines
a function that discovers hosts on a particular
interface and places statistics about them in the
hostTable and the hostTimeTable on behalf of this
hostControlEntry.

hostControlDataSource

Registration:  1.3.6.1.2.1.16.4.1.1.2
Access:        read-write
Reference:     None
Description:  

This object identifies the source of the data for
this instance of the host function. This source
can be any interface on this device. In order
to identify a particular interface, this object shall
identify the instance of the ifIndex object, defined
in [4,6], for the desired interface. For example,
if an entry were to receive data from interface #1,
this object would be set to ifIndex.1.

The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.

This object may not be modified if the associated
hostControlStatus object is equal to valid(1).

hostControlTableSize

Registration:  1.3.6.1.2.1.16.4.1.1.3
Access:        read-only
Reference:     None
Description:  

The number of hostEntries in the hostTable and the
hostTimeTable associated with this hostControlEntry.

hostControlLastDeleteTime

Registration:  1.3.6.1.2.1.16.4.1.1.4
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime when the last entry
was deleted from the portion of the hostTable
associated with this hostControlEntry. If no
deletions have occurred, this value shall be zero.

hostControlOwner

Registration:  1.3.6.1.2.1.16.4.1.1.5
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is
therefore using the resources assigned to it.

hostControlStatus

Registration:  1.3.6.1.2.1.16.4.1.1.6
Access:        read-write
Reference:     None
Description:  

The status of this hostControl entry.

If this object is not equal to valid(1), all
associated entries in the hostTable,
hostTimeTable, and the hostTopNTable shall be
deleted by the agent.

hostAddress

Registration:  1.3.6.1.2.1.16.4.2.1.1
Access:        read-only
Reference:     None
Description:  

The physical address of this host.

hostCreationOrder

Registration:  1.3.6.1.2.1.16.4.2.1.2
Access:        read-only
Reference:     None
Description:  

An index that defines the relative ordering of
the creation time of hosts captured for a
particular hostControlEntry. This index shall
be between 1 and N, where N is the value of
the associated hostControlTableSize. The ordering
of the indexes is based on the order of each entry's
insertion into the table, in which entries added
earlier have a lower index value than entries added
later.

It is important to note that the order for a
particular entry may change as an (earlier) entry
is deleted from the table. Because this order may
change, management stations should make use of the
hostControlLastDeleteTime variable in the
hostControlEntry associated with the relevant
portion of the hostTable. By observing
this variable, the management station may detect
the circumstances where a previous association
between a value of hostCreationOrder
and a hostEntry may no longer hold.

hostIndex

Registration:  1.3.6.1.2.1.16.4.2.1.3
Access:        read-only
Reference:     None
Description:  

The set of collected host statistics of which
this entry is a part. The set of hosts
identified by a particular value of this
index is associated with the hostControlEntry
as identified by the same value of hostControlIndex.

hostInPkts

Registration:  1.3.6.1.2.1.16.4.2.1.4
Access:        read-only
Reference:     None
Description:  

The number of packets without errors transmitted to
this address since it was added to the hostTable.

hostOutPkts

Registration:  1.3.6.1.2.1.16.4.2.1.5
Access:        read-only
Reference:     None
Description:  

The number of packets including errors transmitted
by this address since it was added to the hostTable.

hostInOctets

Registration:  1.3.6.1.2.1.16.4.2.1.6
Access:        read-only
Reference:     None
Description:  

The number of octets transmitted to this address
since it was added to the hostTable (excluding
framing bits but including FCS octets), except for
those octets in packets that contained errors.

hostOutOctets

Registration:  1.3.6.1.2.1.16.4.2.1.7
Access:        read-only
Reference:     None
Description:  

The number of octets transmitted by this address
since it was added to the hostTable (excluding
framing bits but including FCS octets), including
those octets in packets that contained errors.

hostOutErrors

Registration:  1.3.6.1.2.1.16.4.2.1.8
Access:        read-only
Reference:     None
Description:  

The number of error packets transmitted by this
address since this host was added to the hostTable.

hostOutBroadcastPkts

Registration:  1.3.6.1.2.1.16.4.2.1.9
Access:        read-only
Reference:     None
Description:  

The number of good packets transmitted by this
address that were directed to the broadcast address
since this host was added to the hostTable.

hostOutMulticastPkts

Registration:  1.3.6.1.2.1.16.4.2.1.10
Access:        read-only
Reference:     None
Description:  

The number of good packets transmitted by this
address that were directed to a multicast address
since this host was added to the hostTable.
Note that this number does not include packets
directed to the broadcast address.

hostTimeAddress

Registration:  1.3.6.1.2.1.16.4.3.1.1
Access:        read-only
Reference:     None
Description:  

The physical address of this host.

hostTimeCreationOrder

Registration:  1.3.6.1.2.1.16.4.3.1.2
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in
the hostTime table among those entries associated
with the same hostControlEntry. This index shall
be between 1 and N, where N is the value of
the associated hostControlTableSize. The ordering
of the indexes is based on the order of each entry's
insertion into the table, in which entries added
earlier have a lower index value than entries added
later. Thus the management station has the ability
to learn of new entries added to this table without
downloading the entire table.

It is important to note that the index for a
particular entry may change as an (earlier) entry
is deleted from the table. Because this order may
change, management stations should make use of the
hostControlLastDeleteTime variable in the
hostControlEntry associated with the relevant
portion of the hostTimeTable. By observing
this variable, the management station may detect
the circumstances where a download of the table
may have missed entries, and where a previous
association between a value of hostTimeCreationOrder
and a hostTimeEntry may no longer hold.

hostTimeIndex

Registration:  1.3.6.1.2.1.16.4.3.1.3
Access:        read-only
Reference:     None
Description:  

The set of collected host statistics of which
this entry is a part. The set of hosts
identified by a particular value of this
index is associated with the hostControlEntry
as identified by the same value of hostControlIndex.

hostTimeInPkts

Registration:  1.3.6.1.2.1.16.4.3.1.4
Access:        read-only
Reference:     None
Description:  

The number of packets without errors transmitted to
this address since it was added to the hostTimeTable.

hostTimeOutPkts

Registration:  1.3.6.1.2.1.16.4.3.1.5
Access:        read-only
Reference:     None
Description:  

The number of packets including errors transmitted
by this address since it was added to the
hostTimeTable.

hostTimeInOctets

Registration:  1.3.6.1.2.1.16.4.3.1.6
Access:        read-only
Reference:     None
Description:  

The number of octets transmitted to this address
since it was added to the hostTimeTable (excluding
framing bits but including FCS octets), except for
those octets in packets that contained errors.

hostTimeOutOctets

Registration:  1.3.6.1.2.1.16.4.3.1.7
Access:        read-only
Reference:     None
Description:  

The number of octets transmitted by this address since
it was added to the hostTimeTable (excluding framing
bits but including FCS octets), including those
octets in packets that contained errors.

hostTimeOutErrors

Registration:  1.3.6.1.2.1.16.4.3.1.8
Access:        read-only
Reference:     None
Description:  

The number of error packets transmitted by this
address since this host was added to the
hostTimeTable.

hostTimeOutBroadcastPkts

Registration:  1.3.6.1.2.1.16.4.3.1.9
Access:        read-only
Reference:     None
Description:  

The number of good packets transmitted by this
address that were directed to the broadcast address
since this host was added to the hostTimeTable.

hostTimeOutMulticastPkts

Registration:  1.3.6.1.2.1.16.4.3.1.10
Access:        read-only
Reference:     None
Description:  

The number of good packets transmitted by this
address that were directed to a multicast address
since this host was added to the hostTimeTable.
Note that this number does not include packets
directed to the broadcast address.

hostTopNControlIndex

Registration:  1.3.6.1.2.1.16.5.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry
in the hostTopNControl table. Each such
entry defines one top N report prepared for
one interface.

hostTopNHostIndex

Registration:  1.3.6.1.2.1.16.5.1.1.2
Access:        read-write
Reference:     None
Description:  

The host table for which a top N report will be
prepared on behalf of this entry. The host table
identified by a particular value of this index is
associated with the same host table as identified
by the same value of hostIndex.

This object may not be modified if the associated
hostTopNStatus object is equal to valid(1).

hostTopNRateBase

Registration:  1.3.6.1.2.1.16.5.1.1.3
Access:        read-write
Reference:     None
Description:  

The variable for each host that the hostTopNRate
variable is based upon.

This object may not be modified if the associated
hostTopNStatus object is equal to valid(1).

hostTopNTimeRemaining

Registration:  1.3.6.1.2.1.16.5.1.1.4
Access:        read-write
Reference:     None
Description:  

The number of seconds left in the report currently
being collected. When this object is modified by
the management station, a new collection is started,
possibly aborting a currently running report. The
new value is used as the requested duration of this
report, which is loaded into the associated
hostTopNDuration object.

When this object is set to a non-zero value, any
associated hostTopNEntries shall be made
inaccessible by the monitor. While the value of this
object is non-zero, it decrements by one per second
until it reaches zero. During this time, all
associated hostTopNEntries shall remain
inaccessible. At the time that this object
decrements to zero, the report is made
accessible in the hostTopNTable. Thus, the hostTopN
table needs to be created only at the end of the
collection interval.

hostTopNDuration

Registration:  1.3.6.1.2.1.16.5.1.1.5
Access:        read-only
Reference:     None
Description:  

The number of seconds that this report has collected
during the last sampling interval, or if this
report is currently being collected, the number
of seconds that this report is being collected
during this sampling interval.

When the associated hostTopNTimeRemaining object is
set, this object shall be set by the probe to the
same value and shall not be modified until the next
time the hostTopNTimeRemaining is set.

This value shall be zero if no reports have been
requested for this hostTopNControlEntry.

hostTopNRequestedSize

Registration:  1.3.6.1.2.1.16.5.1.1.6
Access:        read-write
Reference:     None
Description:  

The maximum number of hosts requested for the top N
table.

When this object is created or modified, the probe
should set hostTopNGrantedSize as closely to this
object as is possible for the particular probe
implementation and available resources.

hostTopNGrantedSize

Registration:  1.3.6.1.2.1.16.5.1.1.7
Access:        read-only
Reference:     None
Description:  

The maximum number of hosts in the top N table.

When the associated hostTopNRequestedSize object is
created or modified, the probe should set this
object as closely to the requested value as is
possible for the particular implementation and
available resources. The probe must not lower this
value except as a result of a set to the associated
hostTopNRequestedSize object.

Hosts with the highest value of hostTopNRate shall be
placed in this table in decreasing order of this rate
until there is no more room or until there are no more
hosts.

hostTopNStartTime

Registration:  1.3.6.1.2.1.16.5.1.1.8
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime when this top N report was
last started. In other words, this is the time that
the associated hostTopNTimeRemaining object was
modified to start the requested report.

hostTopNOwner

Registration:  1.3.6.1.2.1.16.5.1.1.9
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is
therefore using the resources assigned to it.

hostTopNStatus

Registration:  1.3.6.1.2.1.16.5.1.1.10
Access:        read-write
Reference:     None
Description:  

The status of this hostTopNControl entry.
If this object is not equal to valid(1), all
associated hostTopNEntries shall be deleted by
the agent.

hostTopNReport

Registration:  1.3.6.1.2.1.16.5.2.1.1
Access:        read-only
Reference:     None
Description:  

This object identifies the top N report of which
this entry is a part. The set of hosts
identified by a particular value of this
object is part of the same report as identified
by the same value of the hostTopNControlIndex object.

hostTopNIndex

Registration:  1.3.6.1.2.1.16.5.2.1.2
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in
the hostTopN table among those in the same report.
This index is between 1 and N, where N is the
number of entries in this table. Increasing values
of hostTopNIndex shall be assigned to entries with
decreasing values of hostTopNRate until index N
is assigned to the entry with the lowest value of
hostTopNRate or there are no more hostTopNEntries.

hostTopNAddress

Registration:  1.3.6.1.2.1.16.5.2.1.3
Access:        read-only
Reference:     None
Description:  

The physical address of this host.

hostTopNRate

Registration:  1.3.6.1.2.1.16.5.2.1.4
Access:        read-only
Reference:     None
Description:  

The amount of change in the selected variable
during this sampling interval. The selected
variable is this host's instance of the object
selected by hostTopNRateBase.

matrixControlIndex

Registration:  1.3.6.1.2.1.16.6.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in the
matrixControl table. Each such entry defines
a function that discovers conversations on a particular
interface and places statistics about them in the
matrixSDTable and the matrixDSTable on behalf of this
matrixControlEntry.

matrixControlDataSource

Registration:  1.3.6.1.2.1.16.6.1.1.2
Access:        read-write
Reference:     None
Description:  

This object identifies the source of
the data from which this entry creates a traffic matrix.
This source can be any interface on this device. In
order to identify a particular interface, this object
shall identify the instance of the ifIndex object,
defined in [4,6], for the desired interface. For
example, if an entry were to receive data from
interface #1, this object would be set to ifIndex.1.

The statistics in this group reflect all packets
on the local network segment attached to the
identified interface.

This object may not be modified if the associated
matrixControlStatus object is equal to valid(1).

matrixControlTableSize

Registration:  1.3.6.1.2.1.16.6.1.1.3
Access:        read-only
Reference:     None
Description:  

The number of matrixSDEntries in the matrixSDTable
for this interface. This must also be the value of
the number of entries in the matrixDSTable for this
interface.

matrixControlLastDeleteTime

Registration:  1.3.6.1.2.1.16.6.1.1.4
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime when the last entry
was deleted from the portion of the matrixSDTable
or matrixDSTable associated with this
matrixControlEntry.
If no deletions have occurred, this value shall be
zero.

matrixControlOwner

Registration:  1.3.6.1.2.1.16.6.1.1.5
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is
therefore using the resources assigned to it.

matrixControlStatus

Registration:  1.3.6.1.2.1.16.6.1.1.6
Access:        read-write
Reference:     None
Description:  

The status of this matrixControl entry.

If this object is not equal to valid(1), all
associated entries in the matrixSDTable and the
matrixDSTable shall be deleted by the agent.

matrixSDSourceAddress

Registration:  1.3.6.1.2.1.16.6.2.1.1
Access:        read-only
Reference:     None
Description:  

The source physical address.

matrixSDDestAddress

Registration:  1.3.6.1.2.1.16.6.2.1.2
Access:        read-only
Reference:     None
Description:  

The destination physical address.

matrixSDIndex

Registration:  1.3.6.1.2.1.16.6.2.1.3
Access:        read-only
Reference:     None
Description:  

The set of collected matrix statistics of which
this entry is a part. The set of matrix statistics
identified by a particular value of this index
is associated with the same matrixControlEntry
as identified by the same value of matrixControlIndex.

matrixSDPkts

Registration:  1.3.6.1.2.1.16.6.2.1.4
Access:        read-only
Reference:     None
Description:  

The number of packets transmitted from the source
address to the destination address (this number
includes error packets).

matrixSDOctets

Registration:  1.3.6.1.2.1.16.6.2.1.5
Access:        read-only
Reference:     None
Description:  

The number of octets (excluding framing bits but
including FCS octets) contained in all packets
transmitted from the source address to the
destination address.

matrixSDErrors

Registration:  1.3.6.1.2.1.16.6.2.1.6
Access:        read-only
Reference:     None
Description:  

The number of error packets transmitted from
the source address to the destination address.

matrixDSSourceAddress

Registration:  1.3.6.1.2.1.16.6.3.1.1
Access:        read-only
Reference:     None
Description:  

The source physical address.

matrixDSDestAddress

Registration:  1.3.6.1.2.1.16.6.3.1.2
Access:        read-only
Reference:     None
Description:  

The destination physical address.

matrixDSIndex

Registration:  1.3.6.1.2.1.16.6.3.1.3
Access:        read-only
Reference:     None
Description:  

The set of collected matrix statistics of which
this entry is a part. The set of matrix statistics
identified by a particular value of this index
is associated with the same matrixControlEntry
as identified by the same value of matrixControlIndex.

matrixDSPkts

Registration:  1.3.6.1.2.1.16.6.3.1.4
Access:        read-only
Reference:     None
Description:  

The number of packets transmitted from the source
address to the destination address (this number
includes error packets).

matrixDSOctets

Registration:  1.3.6.1.2.1.16.6.3.1.5
Access:        read-only
Reference:     None
Description:  

The number of octets (excluding framing bits
but including FCS octets) contained in all packets
transmitted from the source address to the
destination address.

matrixDSErrors

Registration:  1.3.6.1.2.1.16.6.3.1.6
Access:        read-only
Reference:     None
Description:  

The number of error packets transmitted from
the source address to the destination address.

filterIndex

Registration:  1.3.6.1.2.1.16.7.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry
in the filter table. Each such entry defines
one filter that is to be applied to every packet
received on an interface.

filterChannelIndex

Registration:  1.3.6.1.2.1.16.7.1.1.2
Access:        read-write
Reference:     None
Description:  

This object identifies the channel of which this
filter is a part. The filters identified by a
particular value of this object are associated
with the same channel as identified by the same
value of the channelIndex object.

filterPktDataOffset

Registration:  1.3.6.1.2.1.16.7.1.1.3
Access:        read-write
Reference:     None
Description:  

The offset from the beginning of each packet where
a match of packet data will be attempted. This offset
is measured from the point in the physical layer
packet after the framing bits, if any. For example,
in an Ethernet frame, this point is at the beginning
of the destination MAC address.

This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterPktData

Registration:  1.3.6.1.2.1.16.7.1.1.4
Access:        read-write
Reference:     None
Description:  

The data that is to be matched with the input packet.
For each packet received, this filter and the
accompanying filterPktDataMask and
filterPktDataNotMask will be adjusted for the
offset. The only bits relevant to this
match algorithm are those that have the corresponding
filterPktDataMask bit equal to one. The following
three rules are then applied to every packet:

(1) If the packet is too short and does not have data
corresponding to part of the filterPktData, the
packet will fail this data match.

(2) For each relevant bit from the packet with the
corresponding filterPktDataNotMask bit set to
zero, if the bit from the packet is not equal to
the corresponding bit from the filterPktData,
then the packet will fail this data match.

(3) If for every relevant bit from the packet with the
corresponding filterPktDataNotMask bit set to one,
the bit from the packet is equal to the
corresponding bit from the filterPktData, then
the packet will fail this data match.

Any packets that have not failed any of the three
matches above have passed this data match.

This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterPktDataMask

Registration:  1.3.6.1.2.1.16.7.1.1.5
Access:        read-write
Reference:     None
Description:  

The mask that is applied to the match process.
After adjusting this mask for the offset, only those
bits in the received packet that correspond to bits
set in this mask are relevant for further processing
by the match algorithm. The offset is applied to
filterPktDataMask in the same way it is applied to
the filter. For the purposes of the matching
algorithm, if the associated filterPktData object
is longer than this mask, this mask is conceptually
extended with '1' bits until it reaches the
length of the filterPktData object.
This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterPktDataNotMask

Registration:  1.3.6.1.2.1.16.7.1.1.6
Access:        read-write
Reference:     None
Description:  

The inversion mask that is applied to the match
process. After adjusting this mask for the offset,
those relevant bits in the received packet that
correspond to bits cleared in this mask must all
be equal to their corresponding bits in the
filterPktData object for the packet to be accepted.
In addition, at least one of those relevant
bits in the received packet that correspond to bits
set in this mask must be different to its
corresponding bit in the filterPktData object.

For the purposes of the matching algorithm, if
the associated filterPktData object is longer than
this mask, this mask is conceptually extended with
'0' bits until it reaches the length of the
filterPktData object.

This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterPktStatus

Registration:  1.3.6.1.2.1.16.7.1.1.7
Access:        read-write
Reference:     None
Description:  

The status that is to be matched with the input
packet. The only bits relevant to this match
algorithm are those that have the corresponding
filterPktStatusMask bit equal to one.

The following two rules are then applied to every
packet:

(1) For each relevant bit from the packet status
with the corresponding filterPktStatusNotMask
bit set to zero, if the bit from the packet
status is not equal to the corresponding bit
from the filterPktStatus, then the packet will
fail this status match.

(2) If for every relevant bit from the packet status
with the corresponding filterPktStatusNotMask
bit set to one, the bit from the packet status
is equal to the corresponding bit from the
filterPktStatus, then the packet will fail
this status match.

Any packets that have not failed either of the two
matches above have passed this status match.

The value of the packet status is a sum. This sum
initially takes the value zero. Then, for each
error, E, that has been discovered in this packet,
2 raised to a value representing E is added to the sum.
The errors and the bits that represent them are
dependent on the media type of the interface that
this channel is receiving packets from.

The errors defined for a packet captured off of an
Ethernet interface are as follows:

bit # Error
0 Packet is longer than 1518 octets
1 Packet is shorter than 64 octets
2 Packet experienced a CRC or Alignment
error

For example, an Ethernet fragment would have a
value of 6 (2^1 + 2^2).

As this MIB is expanded to new media types, this
object will have other media-specific errors defined.

For the purposes of this status matching algorithm, if
the packet status is longer than this
object, filterPktStatus this object is conceptually
extended with '0' bits until it reaches the size of
the packet status.

This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterPktStatusMask

Registration:  1.3.6.1.2.1.16.7.1.1.8
Access:        read-write
Reference:     None
Description:  

The mask that is applied to the status match process.
Only those bits in the received packet that correspond
to bits set in this mask are relevant for further
processing by the status match algorithm. For the
purposes of the matching algorithm, if the
associated filterPktStatus object is longer than
this mask, this mask is conceptually extended with
'1' bits until it reaches the size of the
filterPktStatus. In addition, if a packet status is
longer than this mask, this mask is conceptually
extended with '0' bits until it reaches the size of
the packet status.

This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterPktStatusNotMask

Registration:  1.3.6.1.2.1.16.7.1.1.9
Access:        read-write
Reference:     None
Description:  

The inversion mask that is applied to the status match
process. Those relevant bits in the received packet
status that correspond to bits cleared in this mask
must all be equal to their corresponding bits in the
filterPktStatus object for the packet to be accepted.
In addition, at least one of those relevant bits in the
received packet status that correspond to bits set in
this mask must be different to its corresponding bit
in the filterPktStatus object for the packet to be
accepted.

For the purposes of the matching algorithm, if the
associated filterPktStatus object or a packet status
is longer than this mask, this mask is conceptually
extended with '0' bits until it reaches the longer of
the lengths of the filterPktStatus object and the
packet status.

This object may not be modified if the associated
filterStatus object is equal to valid(1).

filterOwner

Registration:  1.3.6.1.2.1.16.7.1.1.10
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is
therefore using the resources assigned to it.

filterStatus

Registration:  1.3.6.1.2.1.16.7.1.1.11
Access:        read-write
Reference:     None
Description:  

The status of this filter entry.

channelIndex

Registration:  1.3.6.1.2.1.16.7.2.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry
in the channel table. Each such
entry defines one channel, a logical data
and event stream.

channelIfIndex

Registration:  1.3.6.1.2.1.16.7.2.1.2
Access:        read-write
Reference:     None
Description:  

The value of this object uniquely identifies the
interface on this remote network monitoring device
to which the associated filters are applied to allow
data into this channel. The interface identified by
a particular value of this object is the same
interface as identified by the same value of the
ifIndex object, defined in [4,6]. The filters in
this group are applied to all packets on the local
network segment attached to the identified
interface.

This object may not be modified if the associated
channelStatus object is equal to valid(1).

channelAcceptType

Registration:  1.3.6.1.2.1.16.7.2.1.3
Access:        read-write
Reference:     None
Description:  

This object controls the action of the filters
associated with this channel. If this object is equal
to acceptMatched(1), packets will be accepted to this
channel if they are accepted by both the packet data
and packet status matches of an associated filter. If
this object is equal to acceptFailed(2), packets will
be accepted to this channel only if they fail either
the packet data match or the packet status match of
each of the associated filters.
This object may not be modified if the associated
channelStatus object is equal to valid(1).

channelDataControl

Registration:  1.3.6.1.2.1.16.7.2.1.4
Access:        read-write
Reference:     None
Description:  

This object controls the flow of data through this
channel. If this object is on(1), data, status and
events flow through this channel. If this object is
off(2), data, status and events will not flow through
this channel.

channelTurnOnEventIndex

Registration:  1.3.6.1.2.1.16.7.2.1.5
Access:        read-write
Reference:     None
Description:  

The value of this object identifies the event
that is configured to turn the associated
channelDataControl from off to on when the event is
generated. The event identified by a particular value
of this object is the same event as identified by the
same value of the eventIndex object. If there is no
corresponding entry in the eventTable, then no
association exists. In fact, if no event is intended
for this channel, channelTurnOnEventIndex must be
set to zero, a non-existent event index.

This object may not be modified if the associated
channelStatus object is equal to valid(1).

channelTurnOffEventIndex

Registration:  1.3.6.1.2.1.16.7.2.1.6
Access:        read-write
Reference:     None
Description:  

The value of this object identifies the event
that is configured to turn the associated
channelDataControl from on to off when the event is
generated. The event identified by a particular value
of this object is the same event as identified by the
same value of the eventIndex object. If there is no
corresponding entry in the eventTable, then no
association exists. In fact, if no event is intended
for this channel, channelTurnOffEventIndex must be
set to zero, a non-existent event index.

This object may not be modified if the associated
channelStatus object is equal to valid(1).

channelEventIndex

Registration:  1.3.6.1.2.1.16.7.2.1.7
Access:        read-write
Reference:     None
Description:  

The value of this object identifies the event
that is configured to be generated when the
associated channelDataControl is on and a packet
is matched. The event identified by a particular value
of this object is the same event as identified by the
same value of the eventIndex object. If there is no
corresponding entry in the eventTable, then no
association exists. In fact, if no event is intended
for this channel, channelEventIndex must be
set to zero, a non-existent event index.

This object may not be modified if the associated
channelStatus object is equal to valid(1).

channelEventStatus

Registration:  1.3.6.1.2.1.16.7.2.1.8
Access:        read-write
Reference:     None
Description:  

The event status of this channel.

If this channel is configured to generate events
when packets are matched, a means of controlling
the flow of those events is often needed. When
this object is equal to eventReady(1), a single
event may be generated, after which this object
will be set by the probe to eventFired(2). While
in the eventFired(2) state, no events will be
generated until the object is modified to
eventReady(1) (or eventAlwaysReady(3)). The
management station can thus easily respond to a
notification of an event by re-enabling this object.

If the management station wishes to disable this
flow control and allow events to be generated
at will, this object may be set to
eventAlwaysReady(3). Disabling the flow control
is discouraged as it can result in high network
traffic or other performance problems.

channelMatches

Registration:  1.3.6.1.2.1.16.7.2.1.9
Access:        read-only
Reference:     None
Description:  

The number of times this channel has matched a packet.
Note that this object is updated even when
channelDataControl is set to off.

channelDescription

Registration:  1.3.6.1.2.1.16.7.2.1.10
Access:        read-write
Reference:     None
Description:  

A comment describing this channel.

channelOwner

Registration:  1.3.6.1.2.1.16.7.2.1.11
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is therefore
using the resources assigned to it.

channelStatus

Registration:  1.3.6.1.2.1.16.7.2.1.12
Access:        read-write
Reference:     None
Description:  

The status of this channel entry.

bufferControlIndex

Registration:  1.3.6.1.2.1.16.8.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry
in the bufferControl table. The value of this
index shall never be zero. Each such
entry defines one set of packets that is
captured and controlled by one or more filters.

bufferControlChannelIndex

Registration:  1.3.6.1.2.1.16.8.1.1.2
Access:        read-write
Reference:     None
Description:  

An index that identifies the channel that is the
source of packets for this bufferControl table.
The channel identified by a particular value of this
index is the same as identified by the same value of
the channelIndex object.

This object may not be modified if the associated
bufferControlStatus object is equal to valid(1).

bufferControlFullStatus

Registration:  1.3.6.1.2.1.16.8.1.1.3
Access:        read-only
Reference:     None
Description:  

This object shows whether the buffer has room to
accept new packets or if it is full.

If the status is spaceAvailable(1), the buffer is
accepting new packets normally. If the status is
full(2) and the associated bufferControlFullAction
object is wrapWhenFull, the buffer is accepting new
packets by deleting enough of the oldest packets
to make room for new ones as they arrive. Otherwise,
if the status is full(2) and the
bufferControlFullAction object is lockWhenFull,
then the buffer has stopped collecting packets.

When this object is set to full(2) the probe must
not later set it to spaceAvailable(1) except in the
case of a significant gain in resources such as
an increase of bufferControlOctetsGranted. In
particular, the wrap-mode action of deleting old
packets to make room for newly arrived packets
must not affect the value of this object.

bufferControlFullAction

Registration:  1.3.6.1.2.1.16.8.1.1.4
Access:        read-write
Reference:     None
Description:  

Controls the action of the buffer when it
reaches the full status. When in the lockWhenFull(1)
state a packet is added to the buffer that
fills the buffer, the bufferControlFullStatus will
be set to full(2) and this buffer will stop capturing
packets.

bufferControlCaptureSliceSize

Registration:  1.3.6.1.2.1.16.8.1.1.5
Access:        read-write
Reference:     None
Description:  

The maximum number of octets of each packet
that will be saved in this capture buffer.
For example, if a 1500 octet packet is received by
the probe and this object is set to 500, then only
500 octets of the packet will be stored in the
associated capture buffer. If this variable is set
to 0, the capture buffer will save as many octets
as is possible.

This object may not be modified if the associated
bufferControlStatus object is equal to valid(1).

bufferControlDownloadSliceSize

Registration:  1.3.6.1.2.1.16.8.1.1.6
Access:        read-write
Reference:     None
Description:  

The maximum number of octets of each packet
in this capture buffer that will be returned in
an SNMP retrieval of that packet. For example,
if 500 octets of a packet have been stored in the
associated capture buffer, the associated
bufferControlDownloadOffset is 0, and this
object is set to 100, then the captureBufferPacket
object that contains the packet will contain only
the first 100 octets of the packet.

A prudent manager will take into account possible
interoperability or fragmentation problems that may
occur if the download slice size is set too large.
In particular, conformant SNMP implementations are not
required to accept messages whose length exceeds 484
octets, although they are encouraged to support larger
datagrams whenever feasible.

bufferControlDownloadOffset

Registration:  1.3.6.1.2.1.16.8.1.1.7
Access:        read-write
Reference:     None
Description:  

The offset of the first octet of each packet
in this capture buffer that will be returned in
an SNMP retrieval of that packet. For example,
if 500 octets of a packet have been stored in the
associated capture buffer and this object is set to
100, then the captureBufferPacket object that
contains the packet will contain bytes starting
100 octets into the packet.

bufferControlMaxOctetsRequested

Registration:  1.3.6.1.2.1.16.8.1.1.8
Access:        read-write
Reference:     None
Description:  

The requested maximum number of octets to be
saved in this captureBuffer, including any
implementation-specific overhead. If this variable
is set to -1, the capture buffer will save as many
octets as is possible.

When this object is created or modified, the probe
should set bufferControlMaxOctetsGranted as closely
to this object as is possible for the particular probe
implementation and available resources. However, if
the object has the special value of -1, the probe
must set bufferControlMaxOctetsGranted to -1.

bufferControlMaxOctetsGranted

Registration:  1.3.6.1.2.1.16.8.1.1.9
Access:        read-only
Reference:     None
Description:  

The maximum number of octets that can be
saved in this captureBuffer, including overhead.
If this variable is -1, the capture buffer will save
as many octets as possible.

When the bufferControlMaxOctetsRequested object is
created or modified, the probe should set this object
as closely to the requested value as is possible for
the particular probe implementation and available
resources. However, if the request object has the
special value of -1, the probe must set this object
to -1. The probe must not lower this value except
as a result of a modification to the associated
bufferControlMaxOctetsRequested object.

When this maximum number of octets is reached
and a new packet is to be added to this
capture buffer and the corresponding
bufferControlFullAction is set to wrapWhenFull(2),
enough of the oldest packets associated with this
capture buffer shall be deleted by the agent so
that the new packet can be added. If the
corresponding bufferControlFullAction is set to
lockWhenFull(1), the new packet shall be discarded.
In either case, the probe must set
bufferControlFullStatus to full(2).

When the value of this object changes to a value less
than the current value, entries are deleted from
the captureBufferTable associated with this
bufferControlEntry. Enough of the
oldest of these captureBufferEntries shall be
deleted by the agent so that the number of octets
used remains less than or equal to the new value of
this object.

When the value of this object changes to a value greater
than the current value, the number of associated
captureBufferEntries may be allowed to grow.

bufferControlCapturedPackets

Registration:  1.3.6.1.2.1.16.8.1.1.10
Access:        read-only
Reference:     None
Description:  

The number of packets currently in this captureBuffer.

bufferControlTurnOnTime

Registration:  1.3.6.1.2.1.16.8.1.1.11
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime when this capture buffer was
first turned on.

bufferControlOwner

Registration:  1.3.6.1.2.1.16.8.1.1.12
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is therefore
using the resources assigned to it.

bufferControlStatus

Registration:  1.3.6.1.2.1.16.8.1.1.13
Access:        read-write
Reference:     None
Description:  

The status of this buffer Control Entry.

captureBufferControlIndex

Registration:  1.3.6.1.2.1.16.8.2.1.1
Access:        read-only
Reference:     None
Description:  

The index of the bufferControlEntry with which
this packet is associated.

captureBufferIndex

Registration:  1.3.6.1.2.1.16.8.2.1.2
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry
in the captureBuffer table associated with a
particular bufferControlEntry. This index will
start at 1 and increase by one for each new packet
added with the same captureBufferControlIndex.

captureBufferPacketID

Registration:  1.3.6.1.2.1.16.8.2.1.3
Access:        read-only
Reference:     None
Description:  

An index that describes the order of packets
that are received on a particular interface.
The packetID of a packet captured on an
interface is defined to be greater than the
packetID's of all packets captured previously on
the same interface. As the captureBufferPacketID
object has a maximum positive value of 2^31 - 1,
any captureBufferPacketID object shall have the
value of the associated packet's packetID mod 2^31.

captureBufferPacketData

Registration:  1.3.6.1.2.1.16.8.2.1.4
Access:        read-only
Reference:     None
Description:  

The data inside the packet, starting at the beginning
of the packet plus any offset specified in the
associated bufferControlDownloadOffset, including any
link level headers. The length of the data in this
object is the minimum of the length of the captured
packet minus the offset, the length of the associated
bufferControlCaptureSliceSize minus the offset, and the
associated bufferControlDownloadSliceSize. If this
minimum is less than zero, this object shall have a
length of zero.

captureBufferPacketLength

Registration:  1.3.6.1.2.1.16.8.2.1.5
Access:        read-only
Reference:     None
Description:  

The actual length (off the wire) of the packet stored
in this entry, including FCS octets.

captureBufferPacketTime

Registration:  1.3.6.1.2.1.16.8.2.1.6
Access:        read-only
Reference:     None
Description:  

The number of milliseconds that had passed since
this capture buffer was first turned on when this
packet was captured.

captureBufferPacketStatus

Registration:  1.3.6.1.2.1.16.8.2.1.7
Access:        read-only
Reference:     None
Description:  

A value which indicates the error status of this
packet.

The value of this object is defined in the same way as
filterPacketStatus. The value is a sum. This sum
initially takes the value zero. Then, for each
error, E, that has been discovered in this packet,
2 raised to a value representing E is added to the sum.

The errors defined for a packet captured off of an
Ethernet interface are as follows:

bit # Error
0 Packet is longer than 1518 octets
1 Packet is shorter than 64 octets
2 Packet experienced a CRC or Alignment
error
3 First packet in this capture buffer after
it was detected that some packets were
not processed correctly.

For example, an Ethernet fragment would have a
value of 6 (2^1 + 2^2).

As this MIB is expanded to new media types, this object
will have other media-specific errors defined.

eventIndex

Registration:  1.3.6.1.2.1.16.9.1.1.1
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry in the
event table. Each such entry defines one event that
is to be generated when the appropriate conditions
occur.

eventDescription

Registration:  1.3.6.1.2.1.16.9.1.1.2
Access:        read-write
Reference:     None
Description:  

A comment describing this event entry.

eventType

Registration:  1.3.6.1.2.1.16.9.1.1.3
Access:        read-write
Reference:     None
Description:  

The type of notification that the probe will make
about this event. In the case of log, an entry is
made in the log table for each event. In the case of
snmp-trap, an SNMP trap is sent to one or more
management stations.

eventCommunity

Registration:  1.3.6.1.2.1.16.9.1.1.4
Access:        read-write
Reference:     None
Description:  

If an SNMP trap is to be sent, it will be sent to
the SNMP community specified by this octet string.
In the future this table will be extended to include
the party security mechanism. This object shall be
set to a string of length zero if it is intended that
that mechanism be used to specify the destination of
the trap.

eventLastTimeSent

Registration:  1.3.6.1.2.1.16.9.1.1.5
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime at the time this event
entry last generated an event. If this entry has
not generated any events, this value will be
zero.

eventOwner

Registration:  1.3.6.1.2.1.16.9.1.1.6
Access:        read-write
Reference:     None
Description:  

The entity that configured this entry and is therefore
using the resources assigned to it.

If this object contains a string starting with 'monitor'
and has associated entries in the log table, all
connected management stations should retrieve those
log entries, as they may have significance to all
management stations connected to this device

eventStatus

Registration:  1.3.6.1.2.1.16.9.1.1.7
Access:        read-write
Reference:     None
Description:  

The status of this event entry.

If this object is not equal to valid(1), all associated
log entries shall be deleted by the agent.

logEventIndex

Registration:  1.3.6.1.2.1.16.9.2.1.1
Access:        read-only
Reference:     None
Description:  

The event entry that generated this log
entry. The log identified by a particular
value of this index is associated with the same
eventEntry as identified by the same value
of eventIndex.

logIndex

Registration:  1.3.6.1.2.1.16.9.2.1.2
Access:        read-only
Reference:     None
Description:  

An index that uniquely identifies an entry
in the log table amongst those generated by the
same eventEntries. These indexes are
assigned beginning with 1 and increase by one
with each new log entry. The association
between values of logIndex and logEntries
is fixed for the lifetime of each logEntry.
The agent may choose to delete the oldest
instances of logEntry as required because of
lack of memory. It is an implementation-specific
matter as to when this deletion may occur.

logTime

Registration:  1.3.6.1.2.1.16.9.2.1.3
Access:        read-only
Reference:     None
Description:  

The value of sysUpTime when this log entry was
created.

logDescription

Registration:  1.3.6.1.2.1.16.9.2.1.4
Access:        read-only
Reference:     None
Description:  

An implementation dependent description of the
event that activated this log entry.