interface.
An agent may or may not be able to tell if fundamental
changes to the media of the interface have occurred and
necessitate an invalidation of this entry. For example, a
hot-pluggable ethernet card could be pulled out and replaced
by a token-ring card. In such a case, if the agent has such
knowledge of the change, it is recommended that it
invalidate this entry.
This object may not be modified if the associated
historyControlStatus object is equal to valid(1)."
::= { historyControlEntry 2 }
historyControlBucketsRequested OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-create
STATUS current
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
historyControlEntry.
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."
DEFVAL { 50 }
::= { historyControlEntry 3 }
historyControlBucketsGranted OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of discrete sampling intervals
over which data shall be saved in the part of
the media-specific table associated with this
historyControlEntry.
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."
::= { historyControlEntry 4 }
historyControlInterval OBJECT-TYPE
SYNTAX Integer32 (1..3600)
UNITS "Seconds"
MAX-ACCESS read-create
STATUS current
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
historyControlEntry. 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)."
DEFVAL { 1800 }
::= { historyControlEntry 5 }
historyControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { historyControlEntry 6 }
historyControlStatus OBJECT-TYPE
SYNTAX EntryStatus
MAX-ACCESS read-create
STATUS current
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)."
::= { historyControlEntry 7 }
-- The Ethernet History Group
-- Implementation of the Ethernet History group is optional.
-- Consult the MODULE-COMPLIANCE macro for the authoritative
-- conformance information for this MIB.
--
-- The Ethernet History group records periodic statistical samples
-- from a network and stores them for later retrieval.
-- Once samples are taken, their data is stored in an entry
-- in a media-specific table. Each such entry defines one
-- sample, and is associated with the historyControlEntry that
-- caused the sample to be taken. This group defines the
-- etherHistoryTable, for Ethernet networks.
--
etherHistoryTable OBJECT-TYPE
SYNTAX SEQUENCE OF EtherHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of Ethernet history entries."
::= { history 2 }
etherHistoryEntry OBJECT-TYPE
SYNTAX EtherHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An historical sample of Ethernet statistics on a particular
Ethernet interface. This sample is associated with the
historyControlEntry which set up the parameters for
a regular collection of these samples. As an example, an
instance of the etherHistoryPkts object might be named
etherHistoryPkts.2.89"
INDEX { etherHistoryIndex , etherHistorySampleIndex }
::= { etherHistoryTable 1 }
EtherHistoryEntry ::= SEQUENCE {
etherHistoryIndex Integer32,
etherHistorySampleIndex Integer32,
etherHistoryIntervalStart TimeTicks,
etherHistoryDropEvents Counter32,
etherHistoryOctets Counter32,
etherHistoryPkts Counter32,
etherHistoryBroadcastPkts Counter32,
etherHistoryMulticastPkts Counter32,
etherHistoryCRCAlignErrors Counter32,
etherHistoryUndersizePkts Counter32,
etherHistoryOversizePkts Counter32,
etherHistoryFragments Counter32,
etherHistoryJabbers Counter32,
etherHistoryCollisions Counter32,
etherHistoryUtilization Integer32
}
etherHistoryIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { etherHistoryEntry 1 }
etherHistorySampleIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS read-only
STATUS current
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."
::= { etherHistoryEntry 2 }
etherHistoryIntervalStart OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
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."
::= { etherHistoryEntry 3 }
etherHistoryDropEvents OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of events in which packets
were dropped by the probe due to lack of resources
during this sampling 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."
::= { etherHistoryEntry 4 }
etherHistoryOctets OBJECT-TYPE
SYNTAX Counter32
UNITS "Octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets of data (including
those in bad packets) received on the
network (excluding framing bits but including
FCS octets)."
::= { etherHistoryEntry 5 }
etherHistoryPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets (including bad packets)
received during this sampling interval."
::= { etherHistoryEntry 6 }
etherHistoryBroadcastPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of good packets received during this
sampling interval that were directed to the
broadcast address."
::= { etherHistoryEntry 7 }
etherHistoryMulticastPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
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."
::= { etherHistoryEntry 8 }
etherHistoryCRCAlignErrors OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
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 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)."
::= { etherHistoryEntry 9 }
etherHistoryUndersizePkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"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."
::= { etherHistoryEntry 10 }
etherHistoryOversizePkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"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."
::= { etherHistoryEntry 11 }
etherHistoryFragments OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"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 (Alignment
Error).
Note that it is entirely normal for etherHistoryFragments to
increment. This is because it counts both runts (which are
normal occurrences due to collisions) and noise hits."
::= { etherHistoryEntry 12 }
etherHistoryJabbers OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"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).
Note that this definition of jabber is different
than the definition in IEEE-802.3 section 8.2.1.5
(10BASE5) and section 10.3.1.4 (10BASE2). These
documents define jabber as the condition where any
packet exceeds 20 ms. The allowed range to detect
jabber is between 20 ms and 150 ms."
::= { etherHistoryEntry 13 }
etherHistoryCollisions OBJECT-TYPE
SYNTAX Counter32
UNITS "Collisions"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The best estimate of the total number of collisions
on this Ethernet segment during this sampling
interval.
The value returned will depend on the location of the
RMON probe. Section 8.2.1.3 (10BASE-5) and section
10.3.1.3 (10BASE-2) of IEEE standard 802.3 states that a
station must detect a collision, in the receive mode, if
three or more stations are transmitting simultaneously. A
repeater port must detect a collision when two or more
stations are transmitting simultaneously. Thus a probe
placed on a repeater port could record more collisions
than a probe connected to a station on the same segment
would.
Probe location plays a much smaller role when considering
10BASE-T. 14.2.1.4 (10BASE-T) of IEEE standard 802.3
defines a collision as the simultaneous presence of signals
on the DO and RD circuits (transmitting and receiving
at the same time). A 10BASE-T station can only detect
collisions when it is transmitting. Thus probes placed on
a station and a repeater, should report the same number of
collisions.
Note also that an RMON probe inside a repeater should
ideally report collisions between the repeater and one or
more other hosts (transmit collisions as defined by IEEE
802.3k) plus receiver collisions observed on any coax
segments to which the repeater is connected."
::= { etherHistoryEntry 14 }
etherHistoryUtilization OBJECT-TYPE
SYNTAX Integer32 (0..10000)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The best estimate of the mean physical layer
network utilization on this interface during this
sampling interval, in hundredths of a percent."
::= { etherHistoryEntry 15 }
-- The Alarm Group
-- Implementation of the Alarm group is optional. The Alarm Group
-- requires the implementation of the Event group.
-- Consult the MODULE-COMPLIANCE macro for the authoritative
-- conformance information for this MIB.
--
-- The Alarm group periodically takes statistical samples from
-- variables in the probe and compares them to thresholds that have
-- been configured. The alarm table stores configuration
-- entries that each define a variable, polling period, and
-- threshold parameters. If a sample is found to cross the
-- threshold values, an event is generated. Only variables that
-- resolve to an ASN.1 primitive type of INTEGER (INTEGER, Integer32,
-- Counter32, Counter64, Gauge32, or TimeTicks) may be monitored in
-- this way.
--
-- This function has a hysteresis mechanism to limit the generation
-- of events. This mechanism generates one event as a threshold
-- is crossed in the appropriate direction. No more events are
-- generated for that threshold until the opposite threshold is
-- crossed.
--
-- In the case of a sampling a deltaValue, a probe may implement
-- this mechanism with more precision if it takes a delta sample
-- twice per period, each time comparing the sum of the latest two
-- samples to the threshold. This allows the detection of threshold
-- crossings that span the sampling boundary. Note that this does
-- not require any special configuration of the threshold value.
-- It is suggested that probes implement this more precise algorithm.
alarmTable OBJECT-TYPE
SYNTAX SEQUENCE OF AlarmEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of alarm entries."
::= { alarm 1 }
alarmEntry OBJECT-TYPE
SYNTAX AlarmEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of parameters that set up a periodic checking
for alarm conditions. For example, an instance of the
alarmValue object might be named alarmValue.8"
INDEX { alarmIndex }
::= { alarmTable 1 }
AlarmEntry ::= SEQUENCE {
alarmIndex Integer32,
alarmInterval Integer32,
alarmVariable OBJECT IDENTIFIER,
alarmSampleType INTEGER,
alarmValue Integer32,
alarmStartupAlarm INTEGER,
alarmRisingThreshold Integer32,
alarmFallingThreshold Integer32,
alarmRisingEventIndex Integer32,
alarmFallingEventIndex Integer32,
alarmOwner OwnerString,
alarmStatus EntryStatus
}
alarmIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { alarmEntry 1 }
alarmInterval OBJECT-TYPE
SYNTAX Integer32
UNITS "Seconds"
MAX-ACCESS read-create
STATUS current
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 taken in the case of deltaValue
sampling - the interval should be set short enough
that the sampled variable is very unlikely to
increase or decrease by more than 2^31 - 1 during
a single sampling interval.
This object may not be modified if the associated
alarmStatus object is equal to valid(1)."
::= { alarmEntry 2 }
alarmVariable OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object identifier of the particular variable to be
sampled. Only variables that resolve to an ASN.1 primitive
type of INTEGER (INTEGER, Integer32, Counter32, Counter64,
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)."
::= { alarmEntry 3 }
alarmSampleType OBJECT-TYPE
SYNTAX INTEGER {
absoluteValue(1),
deltaValue(2)
}
MAX-ACCESS read-create
STATUS current
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)."
::= { alarmEntry 4 }
alarmValue OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the statistic during the last sampling
period. For example, if the sample type is deltaValue,
this value will be the difference between the samples
at the beginning and end of the period. If the sample
type is absoluteValue, this value will be the sampled
value at the end of the period.
This is the value that is compared with the rising and
falling thresholds.
The value during the current sampling period is not
made available until the period is completed and will
remain available until the next period completes."
::= { alarmEntry 5 }
alarmStartupAlarm OBJECT-TYPE
SYNTAX INTEGER {
risingAlarm(1),
fallingAlarm(2),
risingOrFallingAlarm(3)
}
MAX-ACCESS read-create
STATUS current
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)."
::= { alarmEntry 6 }
alarmRisingThreshold OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
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)."
::= { alarmEntry 7 }
alarmFallingThreshold OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
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)."
::= { alarmEntry 8 }
alarmRisingEventIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-create
STATUS current
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)."
::= { alarmEntry 9 }
alarmFallingEventIndex OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-create
STATUS current
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)."
::= { alarmEntry 10 }
alarmOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { alarmEntry 11 }
alarmStatus OBJECT-TYPE
SYNTAX EntryStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this alarm entry."
::= { alarmEntry 12 }
-- The Host Group
-- Implementation of the Host group is optional.
-- Consult the MODULE-COMPLIANCE macro for the authoritative
-- conformance information for this MIB.
--
-- The host group discovers new hosts on the network by
-- keeping a list of source and destination MAC Addresses seen
-- in good packets. For each of these addresses, the host group
-- keeps a set of statistics. The hostControlTable controls
-- which interfaces this function is performed on, and contains
-- some information about the process. On behalf of each
-- hostControlEntry, data is collected on an interface and placed
-- in both the hostTable and the hostTimeTable. If the
-- monitoring device finds itself short of resources, it may
-- delete entries as needed. It is suggested that the device
-- delete the least recently used entries first.
-- The hostTable contains entries for each address discovered on
-- a particular interface. Each entry contains statistical
-- data about that host. This table is indexed by the
-- MAC address of the host, through which a random access
-- may be achieved.
-- The hostTimeTable contains data in the same format as the
-- hostTable, and must contain the same set of hosts, but is
-- indexed using hostTimeCreationOrder rather than hostAddress.
-- The hostTimeCreationOrder is an integer which reflects
-- the relative order in which a particular entry was discovered
-- and thus inserted into the table. As this order, and thus
-- the index, is among those entries currently in the table,
-- the index for a particular entry may change if an
-- (earlier) entry is deleted. Thus the association between
-- hostTimeCreationOrder and hostTimeEntry may be broken at
-- any time.
-- The hostTimeTable has two important uses. The first is the
-- fast download of this potentially large table. Because the
-- index of this table runs from 1 to the size of the table,
-- inclusive, its values are predictable. This allows very
-- efficient packing of variables into SNMP PDU's and allows
-- a table transfer to have multiple packets outstanding.
-- These benefits increase transfer rates tremendously.
-- The second use of the hostTimeTable is the efficient discovery
-- by the management station of new entries added to the table.
-- After the management station has downloaded the entire table,
-- it knows that new entries will be added immediately after the
-- end of the current table. It can thus detect new entries there
-- and retrieve them easily.
-- Because the association between hostTimeCreationOrder and
-- hostTimeEntry may be broken at any time, the management
-- station must monitor the related hostControlLastDeleteTime
-- object. When the management station thus detects a deletion,
-- it must assume that any such associations have been broken,
-- and invalidate any it has stored locally. This includes
-- restarting any download of the hostTimeTable that may have been
-- in progress, as well as rediscovering the end of the
-- hostTimeTable so that it may detect new entries. If the
-- management station does not detect the broken association,
-- it may continue to refer to a particular host by its
-- creationOrder while unwittingly retrieving the data associated
-- with another host entirely. If this happens while downloading
-- the host table, the management station may fail to download
-- all of the entries in the table.
hostControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF HostControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of host table control entries."
::= { hosts 1 }
hostControlEntry OBJECT-TYPE
SYNTAX HostControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of parameters that set up the discovery of hosts
on a particular interface and the collection of statistics
about these hosts. For example, an instance of the
hostControlTableSize object might be named
hostControlTableSize.1"
INDEX { hostControlIndex }
::= { hostControlTable 1 }
HostControlEntry ::= SEQUENCE {
hostControlIndex Integer32,
hostControlDataSource OBJECT IDENTIFIER,
hostControlTableSize Integer32,
hostControlLastDeleteTime TimeTicks,
hostControlOwner OwnerString,
hostControlStatus EntryStatus
}
hostControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { hostControlEntry 1 }
hostControlDataSource OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
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 RFC2233 [17], 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.
An agent may or may not be able to tell if fundamental
changes to the media of the interface have occurred and
necessitate an invalidation of this entry. For example, a
hot-pluggable ethernet card could be pulled out and replaced
by a token-ring card. In such a case, if the agent has such
knowledge of the change, it is recommended that it
invalidate this entry.
This object may not be modified if the associated
hostControlStatus object is equal to valid(1)."
::= { hostControlEntry 2 }
hostControlTableSize OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of hostEntries in the hostTable and the
hostTimeTable associated with this hostControlEntry."
::= { hostControlEntry 3 }
hostControlLastDeleteTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
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."
::= { hostControlEntry 4 }
hostControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { hostControlEntry 5 }
hostControlStatus OBJECT-TYPE
SYNTAX EntryStatus
MAX-ACCESS read-create
STATUS current
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."
::= { hostControlEntry 6 }
hostTable OBJECT-TYPE
SYNTAX SEQUENCE OF HostEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of host entries."
::= { hosts 2 }
hostEntry OBJECT-TYPE
SYNTAX HostEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A collection of statistics for a particular host that has
been discovered on an interface of this device. For example,
an instance of the hostOutBroadcastPkts object might be
named hostOutBroadcastPkts.1.6.8.0.32.27.3.176"
INDEX { hostIndex, hostAddress }
::= { hostTable 1 }
HostEntry ::= SEQUENCE {
hostAddress OCTET STRING,
hostCreationOrder Integer32,
hostIndex Integer32,
hostInPkts Counter32,
hostOutPkts Counter32,
hostInOctets Counter32,
hostOutOctets Counter32,
hostOutErrors Counter32,
hostOutBroadcastPkts Counter32,
hostOutMulticastPkts Counter32
}
hostAddress OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The physical address of this host."
::= { hostEntry 1 }
hostCreationOrder OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { hostEntry 2 }
hostIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { hostEntry 3 }
hostInPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of good packets transmitted to this
address since it was added to the hostTable."
::= { hostEntry 4 }
hostOutPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets, including bad packets, transmitted
by this address since it was added to the hostTable."
::= { hostEntry 5 }
hostInOctets OBJECT-TYPE
SYNTAX Counter32
UNITS "Octets"
MAX-ACCESS read-only
STATUS current
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 bad packets."
::= { hostEntry 6 }
hostOutOctets OBJECT-TYPE
SYNTAX Counter32
UNITS "Octets"
MAX-ACCESS read-only
STATUS current
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 bad packets."
::= { hostEntry 7 }
hostOutErrors OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of bad packets transmitted by this address
since this host was added to the hostTable."
::= { hostEntry 8 }
hostOutBroadcastPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
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."
::= { hostEntry 9 }
hostOutMulticastPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
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."
::= { hostEntry 10 }
-- host Time Table
hostTimeTable OBJECT-TYPE
SYNTAX SEQUENCE OF HostTimeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of time-ordered host table entries."
::= { hosts 3 }
hostTimeEntry OBJECT-TYPE
SYNTAX HostTimeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A collection of statistics for a particular host that has
been discovered on an interface of this device. This
collection includes the relative ordering of the creation
time of this object. For example, an instance of the
hostTimeOutBroadcastPkts object might be named
hostTimeOutBroadcastPkts.1.687"
INDEX { hostTimeIndex, hostTimeCreationOrder }
::= { hostTimeTable 1 }
HostTimeEntry ::= SEQUENCE {
hostTimeAddress OCTET STRING,
hostTimeCreationOrder Integer32,
hostTimeIndex Integer32,
hostTimeInPkts Counter32,
hostTimeOutPkts Counter32,
hostTimeInOctets Counter32,
hostTimeOutOctets Counter32,
hostTimeOutErrors Counter32,
hostTimeOutBroadcastPkts Counter32,
hostTimeOutMulticastPkts Counter32
}
hostTimeAddress OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The physical address of this host."
::= { hostTimeEntry 1 }
hostTimeCreationOrder OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { hostTimeEntry 2 }
hostTimeIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
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."
::= { hostTimeEntry 3 }
hostTimeInPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of good packets transmitted to this
address since it was added to the hostTimeTable."
::= { hostTimeEntry 4 }
hostTimeOutPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets, including bad packets, transmitted
by this address since it was added to the hostTimeTable."
::= { hostTimeEntry 5 }
hostTimeInOctets OBJECT-TYPE
SYNTAX Counter32
UNITS "Octets"
MAX-ACCESS read-only
STATUS current
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 bad packets."
::= { hostTimeEntry 6 }
hostTimeOutOctets OBJECT-TYPE
SYNTAX Counter32
UNITS "Octets"
MAX-ACCESS read-only
STATUS current
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 bad packets."
::= { hostTimeEntry 7 }
hostTimeOutErrors OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of bad packets transmitted by this address
since this host was added to the hostTimeTable."
::= { hostTimeEntry 8 }
hostTimeOutBroadcastPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
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."
::= { hostTimeEntry 9 }
hostTimeOutMulticastPkts OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
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."
::= { hostTimeEntry 10 }
-- The Host Top "N" Group
-- Implementation of the Host Top N group is optional. The Host Top N
-- group requires the implementation of the host group.
-- Consult the MODULE-COMPLIANCE macro for the authoritative
-- conformance information for this MIB.
--
-- The Host Top N group is used to prepare reports that describe
-- the hosts that top a list ordered by one of their statistics.
-- The available statistics are samples of one of their
-- base statistics, over an interval specified by the management
-- station. Thus, these statistics are rate based. The management
-- station also selects how many such hosts are reported.
-- The hostTopNControlTable is used to initiate the generation of
-- such a report. The management station may select the parameters
-- of such a report, such as which interface, which statistic,
-- how many hosts, and the start and stop times of the sampling.
-- When the report is prepared, entries are created in the
-- hostTopNTable associated with the relevant hostTopNControlEntry.
-- These entries are static for each report after it has been
-- prepared.
hostTopNControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF HostTopNControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of top N host control entries."
::= { hostTopN 1 }
hostTopNControlEntry OBJECT-TYPE
SYNTAX HostTopNControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of parameters that control the creation of a report
of the top N hosts according to several metrics. For
example, an instance of the hostTopNDuration object might
be named hostTopNDuration.3"
INDEX { hostTopNControlIndex }
::= { hostTopNControlTable 1 }
HostTopNControlEntry ::= SEQUENCE {
hostTopNControlIndex Integer32,
hostTopNHostIndex Integer32,
hostTopNRateBase INTEGER,
hostTopNTimeRemaining Integer32,
hostTopNDuration Integer32,
hostTopNRequestedSize Integer32,
hostTopNGrantedSize Integer32,
hostTopNStartTime TimeTicks,
hostTopNOwner OwnerString,
hostTopNStatus EntryStatus
}
hostTopNControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An index that uniquely identifies an entry
in the hostTopNControl table. Each such
entry defines one top N report prepared for
one interface."
::= { hostTopNControlEntry 1 }
hostTopNHostIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-create
STATUS current
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)."
::= { hostTopNControlEntry 2 }
hostTopNRateBase OBJECT-TYPE
SYNTAX INTEGER {
hostTopNInPkts(1),
hostTopNOutPkts(2),
hostTopNInOctets(3),
hostTopNOutOctets(4),
hostTopNOutErrors(5),
hostTopNOutBroadcastPkts(6),
hostTopNOutMulticastPkts(7)
}
MAX-ACCESS read-create
STATUS current
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)."
::= { hostTopNControlEntry 3 }
hostTopNTimeRemaining OBJECT-TYPE
SYNTAX Integer32
UNITS "Seconds"
MAX-ACCESS read-create
STATUS current
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."
DEFVAL { 0 }
::= { hostTopNControlEntry 4 }
hostTopNDuration OBJECT-TYPE
SYNTAX Integer32
UNITS "Seconds"
MAX-ACCESS read-only
STATUS current
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."
DEFVAL { 0 }
::= { hostTopNControlEntry 5 }
hostTopNRequestedSize OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-create
STATUS current
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."
DEFVAL { 10 }
::= { hostTopNControlEntry 6 }
hostTopNGrantedSize OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
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."
::= { hostTopNControlEntry 7 }
hostTopNStartTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
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."
::= { hostTopNControlEntry 8 }
hostTopNOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { hostTopNControlEntry 9 }
hostTopNStatus OBJECT-TYPE
SYNTAX EntryStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this hostTopNControl entry.
If this object is not equal to valid(1), all associated