RFC 4293
Management Information Base for the Internet Protocol (IP)
5. Definitions
The following MIB module imports from the IF-MIB [6] and the INET- ADDRESS-MIB [7] and references Neighbor Discovery [4], the IPv6 Stateless Address Autoconfiguration protocol [5], the Default Router Preferences document [8], ARP [10] and the IPv6 address architecture document [17]. IP-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, Integer32, Counter32, IpAddress, mib-2, Unsigned32, Counter64, zeroDotZero FROM SNMPv2-SMI PhysAddress, TruthValue, TimeStamp, RowPointer, TEXTUAL-CONVENTION, TestAndIncr, RowStatus, StorageType FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF InetAddress, InetAddressType, InetAddressPrefixLength, InetVersion, InetZoneIndex FROM INET-ADDRESS-MIB InterfaceIndex FROM IF-MIB; ipMIB MODULE-IDENTITY LAST-UPDATED "200602020000Z" ORGANIZATION "IETF IPv6 MIB Revision Team" CONTACT-INFO "Editor:
Shawn A. Routhier
Interworking Labs
108 Whispering Pines Dr. Suite 235
Scotts Valley, CA 95066
USA
EMail: <sar@iwl.com>"
DESCRIPTION
"The MIB module for managing IP and ICMP implementations, but
excluding their management of IP routes.
Copyright (C) The Internet Society (2006). This version of
this MIB module is part of RFC 4293; see the RFC itself for
full legal notices."
REVISION "200602020000Z"
DESCRIPTION
"The IP version neutral revision with added IPv6 objects for
ND, default routers, and router advertisements. As well as
being the successor to RFC 2011, this MIB is also the
successor to RFCs 2465 and 2466. Published as RFC 4293."
REVISION "199411010000Z"
DESCRIPTION
"A separate MIB module (IP-MIB) for IP and ICMP management
objects. Published as RFC 2011."
REVISION "199103310000Z"
DESCRIPTION
"The initial revision of this MIB module was part of MIB-II,
which was published as RFC 1213."
::= { mib-2 48}
--
-- The textual conventions we define and use in this MIB.
--
IpAddressOriginTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The origin of the address.
manual(2) indicates that the address was manually configured
to a specified address, e.g., by user configuration.
dhcp(4) indicates an address that was assigned to this
system by a DHCP server.
linklayer(5) indicates an address created by IPv6 stateless
auto-configuration.
random(6) indicates an address chosen by the system at
random, e.g., an IPv4 address within 169.254/16, or an RFC
3041 privacy address."
SYNTAX INTEGER {
other(1),
manual(2),
dhcp(4),
linklayer(5),
random(6)
}
IpAddressStatusTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The status of an address. Most of the states correspond to
states from the IPv6 Stateless Address Autoconfiguration
protocol.
The preferred(1) state indicates that this is a valid
address that can appear as the destination or source address
of a packet.
The deprecated(2) state indicates that this is a valid but
deprecated address that should no longer be used as a source
address in new communications, but packets addressed to such
an address are processed as expected.
The invalid(3) state indicates that this isn't a valid
address and it shouldn't appear as the destination or source
address of a packet.
The inaccessible(4) state indicates that the address is not
accessible because the interface to which this address is
assigned is not operational.
The unknown(5) state indicates that the status cannot be
determined for some reason.
The tentative(6) state indicates that the uniqueness of the
address on the link is being verified. Addresses in this
state should not be used for general communication and
should only be used to determine the uniqueness of the
address.
The duplicate(7) state indicates the address has been
determined to be non-unique on the link and so must not be
used.
The optimistic(8) state indicates the address is available
for use, subject to restrictions, while its uniqueness on
a link is being verified.
In the absence of other information, an IPv4 address is
always preferred(1)."
REFERENCE "RFC 2462"
SYNTAX INTEGER {
preferred(1),
deprecated(2),
invalid(3),
inaccessible(4),
unknown(5),
tentative(6),
duplicate(7),
optimistic(8)
}
IpAddressPrefixOriginTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The origin of this prefix.
manual(2) indicates a prefix that was manually configured.
wellknown(3) indicates a well-known prefix, e.g., 169.254/16
for IPv4 auto-configuration or fe80::/10 for IPv6 link-local
addresses. Well known prefixes may be assigned by IANA,
the address registries, or by specification in a standards
track RFC.
dhcp(4) indicates a prefix that was assigned by a DHCP
server.
routeradv(5) indicates a prefix learned from a router
advertisement.
Note: while IpAddressOriginTC and IpAddressPrefixOriginTC
are similar, they are not identical. The first defines how
an address was created, while the second defines how a
prefix was found."
SYNTAX INTEGER {
other(1),
manual(2),
wellknown(3),
dhcp(4),
routeradv(5)
}
Ipv6AddressIfIdentifierTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "2x:"
STATUS current
DESCRIPTION
"This data type is used to model IPv6 address
interface identifiers. This is a binary string
of up to 8 octets in network byte-order."
SYNTAX OCTET STRING (SIZE (0..8))
--
-- the IP general group
-- some objects that affect all of IPv4
--
ip OBJECT IDENTIFIER ::= { mib-2 4 }
ipForwarding OBJECT-TYPE
SYNTAX INTEGER {
forwarding(1), -- acting as a router
notForwarding(2) -- NOT acting as a router
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The indication of whether this entity is acting as an IPv4
router in respect to the forwarding of datagrams received
by, but not addressed to, this entity. IPv4 routers forward
datagrams. IPv4 hosts do not (except those source-routed
via the host).
When this object is written, the entity should save the
change to non-volatile storage and restore the object from
non-volatile storage upon re-initialization of the system.
Note: a stronger requirement is not used because this object
was previously defined."
::= { ip 1 }
ipDefaultTTL OBJECT-TYPE
SYNTAX Integer32 (1..255)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The default value inserted into the Time-To-Live field of
the IPv4 header of datagrams originated at this entity,
whenever a TTL value is not supplied by the transport layer
protocol.
When this object is written, the entity should save the
change to non-volatile storage and restore the object from
non-volatile storage upon re-initialization of the system.
Note: a stronger requirement is not used because this object
was previously defined."
::= { ip 2 }
ipReasmTimeout OBJECT-TYPE
SYNTAX Integer32
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of seconds that received fragments are
held while they are awaiting reassembly at this entity."
::= { ip 13 }
--
-- the IPv6 general group
-- Some objects that affect all of IPv6
--
ipv6IpForwarding OBJECT-TYPE
SYNTAX INTEGER {
forwarding(1), -- acting as a router
notForwarding(2) -- NOT acting as a router
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The indication of whether this entity is acting as an IPv6
router on any interface in respect to the forwarding of
datagrams received by, but not addressed to, this entity.
IPv6 routers forward datagrams. IPv6 hosts do not (except
those source-routed via the host).
When this object is written, the entity SHOULD save the
change to non-volatile storage and restore the object from
non-volatile storage upon re-initialization of the system."
::= { ip 25 }
ipv6IpDefaultHopLimit OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The default value inserted into the Hop Limit field of the
IPv6 header of datagrams originated at this entity whenever
a Hop Limit value is not supplied by the transport layer
protocol.
When this object is written, the entity SHOULD save the
change to non-volatile storage and restore the object from
non-volatile storage upon re-initialization of the system."
REFERENCE "RFC 2461 Section 6.3.2"
::= { ip 26 }
--
-- IPv4 Interface Table
--
ipv4InterfaceTableLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at which
a row in the ipv4InterfaceTable was added or deleted, or
when an ipv4InterfaceReasmMaxSize or an
ipv4InterfaceEnableStatus object was modified.
If new objects are added to the ipv4InterfaceTable that
require the ipv4InterfaceTableLastChange to be updated when
they are modified, they must specify that requirement in
their description clause."
::= { ip 27 }
ipv4InterfaceTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ipv4InterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table containing per-interface IPv4-specific
information."
::= { ip 28 }
ipv4InterfaceEntry OBJECT-TYPE
SYNTAX Ipv4InterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry containing IPv4-specific information for a specific
interface."
INDEX { ipv4InterfaceIfIndex }
::= { ipv4InterfaceTable 1 }
Ipv4InterfaceEntry ::= SEQUENCE {
ipv4InterfaceIfIndex InterfaceIndex,
ipv4InterfaceReasmMaxSize Integer32,
ipv4InterfaceEnableStatus INTEGER,
ipv4InterfaceRetransmitTime Unsigned32
}
ipv4InterfaceIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index value that uniquely identifies the interface to
which this entry is applicable. The interface identified by
a particular value of this index is the same interface as
identified by the same value of the IF-MIB's ifIndex."
::= { ipv4InterfaceEntry 1 }
ipv4InterfaceReasmMaxSize OBJECT-TYPE
SYNTAX Integer32 (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The size of the largest IPv4 datagram that this entity can
re-assemble from incoming IPv4 fragmented datagrams received
on this interface."
::= { ipv4InterfaceEntry 2 }
ipv4InterfaceEnableStatus OBJECT-TYPE
SYNTAX INTEGER {
up(1),
down(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The indication of whether IPv4 is enabled (up) or disabled
(down) on this interface. This object does not affect the
state of the interface itself, only its connection to an
IPv4 stack. The IF-MIB should be used to control the state
of the interface."
::= { ipv4InterfaceEntry 3 }
ipv4InterfaceRetransmitTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time between retransmissions of ARP requests to a
neighbor when resolving the address or when probing the
reachability of a neighbor."
REFERENCE "RFC 1122"
DEFVAL { 1000 }
::= { ipv4InterfaceEntry 4 }
--
-- v6 interface table
--
ipv6InterfaceTableLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at which
a row in the ipv6InterfaceTable was added or deleted or when
an ipv6InterfaceReasmMaxSize, ipv6InterfaceIdentifier,
ipv6InterfaceEnableStatus, ipv6InterfaceReachableTime,
ipv6InterfaceRetransmitTime, or ipv6InterfaceForwarding
object was modified.
If new objects are added to the ipv6InterfaceTable that
require the ipv6InterfaceTableLastChange to be updated when
they are modified, they must specify that requirement in
their description clause."
::= { ip 29 }
ipv6InterfaceTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ipv6InterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table containing per-interface IPv6-specific
information."
::= { ip 30 }
ipv6InterfaceEntry OBJECT-TYPE
SYNTAX Ipv6InterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry containing IPv6-specific information for a given
interface."
INDEX { ipv6InterfaceIfIndex }
::= { ipv6InterfaceTable 1 }
Ipv6InterfaceEntry ::= SEQUENCE {
ipv6InterfaceIfIndex InterfaceIndex,
ipv6InterfaceReasmMaxSize Unsigned32,
ipv6InterfaceIdentifier Ipv6AddressIfIdentifierTC,
ipv6InterfaceEnableStatus INTEGER,
ipv6InterfaceReachableTime Unsigned32,
ipv6InterfaceRetransmitTime Unsigned32,
ipv6InterfaceForwarding INTEGER
}
ipv6InterfaceIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index value that uniquely identifies the interface to
which this entry is applicable. The interface identified by
a particular value of this index is the same interface as
identified by the same value of the IF-MIB's ifIndex."
::= { ipv6InterfaceEntry 1 }
ipv6InterfaceReasmMaxSize OBJECT-TYPE
SYNTAX Unsigned32 (1500..65535)
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The size of the largest IPv6 datagram that this entity can
re-assemble from incoming IPv6 fragmented datagrams received
on this interface."
::= { ipv6InterfaceEntry 2 }
ipv6InterfaceIdentifier OBJECT-TYPE
SYNTAX Ipv6AddressIfIdentifierTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Interface Identifier for this interface. The Interface
Identifier is combined with an address prefix to form an
interface address.
By default, the Interface Identifier is auto-configured
according to the rules of the link type to which this
interface is attached.
A zero length identifier may be used where appropriate. One
possible example is a loopback interface."
::= { ipv6InterfaceEntry 3 }
-- This object ID is reserved as it was used in earlier versions of
-- the MIB module. In theory, OIDs are not assigned until the
-- specification is released as an RFC; however, as some companies
-- may have shipped code based on earlier versions of the MIB, it
-- seems best to reserve this OID. This OID had been
-- ipv6InterfacePhysicalAddress.
-- ::= { ipv6InterfaceEntry 4}
ipv6InterfaceEnableStatus OBJECT-TYPE
SYNTAX INTEGER {
up(1),
down(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The indication of whether IPv6 is enabled (up) or disabled
(down) on this interface. This object does not affect the
state of the interface itself, only its connection to an
IPv6 stack. The IF-MIB should be used to control the state
of the interface.
When this object is written, the entity SHOULD save the
change to non-volatile storage and restore the object from
non-volatile storage upon re-initialization of the system."
::= { ipv6InterfaceEntry 5 }
ipv6InterfaceReachableTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time a neighbor is considered reachable after receiving
a reachability confirmation."
REFERENCE "RFC 2461, Section 6.3.2"
::= { ipv6InterfaceEntry 6 }
ipv6InterfaceRetransmitTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time between retransmissions of Neighbor Solicitation
messages to a neighbor when resolving the address or when
probing the reachability of a neighbor."
REFERENCE "RFC 2461, Section 6.3.2"
::= { ipv6InterfaceEntry 7 }
ipv6InterfaceForwarding OBJECT-TYPE
SYNTAX INTEGER {
forwarding(1), -- acting as a router
notForwarding(2) -- NOT acting as a router
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The indication of whether this entity is acting as an IPv6
router on this interface with respect to the forwarding of
datagrams received by, but not addressed to, this entity.
IPv6 routers forward datagrams. IPv6 hosts do not (except
those source-routed via the host).
This object is constrained by ipv6IpForwarding and is
ignored if ipv6IpForwarding is set to notForwarding. Those
systems that do not provide per-interface control of the
forwarding function should set this object to forwarding for
all interfaces and allow the ipv6IpForwarding object to
control the forwarding capability.
When this object is written, the entity SHOULD save the
change to non-volatile storage and restore the object from
non-volatile storage upon re-initialization of the system."
::= { ipv6InterfaceEntry 8 }
--
-- Per-Interface or System-Wide IP statistics.
--
-- The following two tables, ipSystemStatsTable and ipIfStatsTable,
-- are intended to provide the same counters at different granularities.
-- The ipSystemStatsTable provides system wide counters aggregating
-- the traffic counters for all interfaces for a given address type.
-- The ipIfStatsTable provides the same counters but for specific
-- interfaces rather than as an aggregate.
--
-- Note well: If a system provides both system-wide and interface-
-- specific values, the system-wide value may not be equal to the sum
-- of the interface-specific values across all interfaces due to e.g.,
-- dynamic interface creation/deletion.
--
-- Note well: Both of these tables contain some items that are
-- represented by two objects, representing the value in either 32
-- or 64 bits. For those objects, the 32-bit value MUST be the low
-- order 32 bits of the 64-bit value. Also note that the 32-bit
-- counters must be included when the 64-bit counters are included.
ipTrafficStats OBJECT IDENTIFIER ::= { ip 31 }
ipSystemStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF IpSystemStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table containing system wide, IP version specific
traffic statistics. This table and the ipIfStatsTable
contain similar objects whose difference is in their
granularity. Where this table contains system wide traffic
statistics, the ipIfStatsTable contains the same statistics
but counted on a per-interface basis."
::= { ipTrafficStats 1 }
ipSystemStatsEntry OBJECT-TYPE
SYNTAX IpSystemStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A statistics entry containing system-wide objects for a
particular IP version."
INDEX { ipSystemStatsIPVersion }
::= { ipSystemStatsTable 1 }
IpSystemStatsEntry ::= SEQUENCE {
ipSystemStatsIPVersion InetVersion,
ipSystemStatsInReceives Counter32,
ipSystemStatsHCInReceives Counter64,
ipSystemStatsInOctets Counter32,
ipSystemStatsHCInOctets Counter64,
ipSystemStatsInHdrErrors Counter32,
ipSystemStatsInNoRoutes Counter32,
ipSystemStatsInAddrErrors Counter32,
ipSystemStatsInUnknownProtos Counter32,
ipSystemStatsInTruncatedPkts Counter32,
ipSystemStatsInForwDatagrams Counter32,
ipSystemStatsHCInForwDatagrams Counter64,
ipSystemStatsReasmReqds Counter32,
ipSystemStatsReasmOKs Counter32,
ipSystemStatsReasmFails Counter32,
ipSystemStatsInDiscards Counter32,
ipSystemStatsInDelivers Counter32,
ipSystemStatsHCInDelivers Counter64,
ipSystemStatsOutRequests Counter32,
ipSystemStatsHCOutRequests Counter64,
ipSystemStatsOutNoRoutes Counter32,
ipSystemStatsOutForwDatagrams Counter32,
ipSystemStatsHCOutForwDatagrams Counter64,
ipSystemStatsOutDiscards Counter32,
ipSystemStatsOutFragReqds Counter32,
ipSystemStatsOutFragOKs Counter32,
ipSystemStatsOutFragFails Counter32,
ipSystemStatsOutFragCreates Counter32,
ipSystemStatsOutTransmits Counter32,
ipSystemStatsHCOutTransmits Counter64,
ipSystemStatsOutOctets Counter32,
ipSystemStatsHCOutOctets Counter64,
ipSystemStatsInMcastPkts Counter32,
ipSystemStatsHCInMcastPkts Counter64,
ipSystemStatsInMcastOctets Counter32,
ipSystemStatsHCInMcastOctets Counter64,
ipSystemStatsOutMcastPkts Counter32,
ipSystemStatsHCOutMcastPkts Counter64,
ipSystemStatsOutMcastOctets Counter32,
ipSystemStatsHCOutMcastOctets Counter64,
ipSystemStatsInBcastPkts Counter32,
ipSystemStatsHCInBcastPkts Counter64,
ipSystemStatsOutBcastPkts Counter32,
ipSystemStatsHCOutBcastPkts Counter64,
ipSystemStatsDiscontinuityTime TimeStamp,
ipSystemStatsRefreshRate Unsigned32
}
ipSystemStatsIPVersion OBJECT-TYPE
SYNTAX InetVersion
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP version of this row."
::= { ipSystemStatsEntry 1 }
-- This object ID is reserved to allow the IDs for this table's objects
-- to align with the objects in the ipIfStatsTable.
-- ::= { ipSystemStatsEntry 2 }
ipSystemStatsInReceives OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of input IP datagrams received, including
those received in error.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 3 }
ipSystemStatsHCInReceives OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of input IP datagrams received, including
those received in error. This object counts the same
datagrams as ipSystemStatsInReceives, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 4 }
ipSystemStatsInOctets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets received in input IP datagrams,
including those received in error. Octets from datagrams
counted in ipSystemStatsInReceives MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 5 }
ipSystemStatsHCInOctets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets received in input IP datagrams,
including those received in error. This object counts the
same octets as ipSystemStatsInOctets, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 6 }
ipSystemStatsInHdrErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input IP datagrams discarded due to errors in
their IP headers, including version number mismatch, other
format errors, hop count exceeded, errors discovered in
processing their IP options, etc.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 7 }
ipSystemStatsInNoRoutes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input IP datagrams discarded because no route
could be found to transmit them to their destination.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 8 }
ipSystemStatsInAddrErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input IP datagrams discarded because the IP
address in their IP header's destination field was not a
valid address to be received at this entity. This count
includes invalid addresses (e.g., ::0). For entities
that are not IP routers and therefore do not forward
datagrams, this counter includes datagrams discarded
because the destination address was not a local address.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 9 }
ipSystemStatsInUnknownProtos OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of locally-addressed IP datagrams received
successfully but discarded because of an unknown or
unsupported protocol.
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 10 }
ipSystemStatsInTruncatedPkts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input IP datagrams discarded because the
datagram frame didn't carry enough data.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 11 }
ipSystemStatsInForwDatagrams OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input datagrams for which this entity was not
their final IP destination and for which this entity
attempted to find a route to forward them to that final
destination. In entities that do not act as IP routers,
this counter will include only those datagrams that were
Source-Routed via this entity, and the Source-Route
processing was successful.
When tracking interface statistics, the counter of the
incoming interface is incremented for each datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 12 }
ipSystemStatsHCInForwDatagrams OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input datagrams for which this entity was not
their final IP destination and for which this entity
attempted to find a route to forward them to that final
destination. This object counts the same packets as
ipSystemStatsInForwDatagrams, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 13 }
ipSystemStatsReasmReqds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of IP fragments received that needed to be
reassembled at this interface.
When tracking interface statistics, the counter of the
interface to which these fragments were addressed is
incremented. This interface might not be the same as the
input interface for some of the fragments.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 14 }
ipSystemStatsReasmOKs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of IP datagrams successfully reassembled.
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 15 }
ipSystemStatsReasmFails OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of failures detected by the IP re-assembly
algorithm (for whatever reason: timed out, errors, etc.).
Note that this is not necessarily a count of discarded IP
fragments since some algorithms (notably the algorithm in
RFC 815) can lose track of the number of fragments by
combining them as they are received.
When tracking interface statistics, the counter of the
interface to which these fragments were addressed is
incremented. This interface might not be the same as the
input interface for some of the fragments.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 16 }
ipSystemStatsInDiscards OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of input IP datagrams for which no problems were
encountered to prevent their continued processing, but
were discarded (e.g., for lack of buffer space). Note that
this counter does not include any datagrams discarded while
awaiting re-assembly.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 17 }
ipSystemStatsInDelivers OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of datagrams successfully delivered to IP
user-protocols (including ICMP).
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 18 }
ipSystemStatsHCInDelivers OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of datagrams successfully delivered to IP
user-protocols (including ICMP). This object counts the
same packets as ipSystemStatsInDelivers, but allows for
larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 19 }
ipSystemStatsOutRequests OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of IP datagrams that local IP user-
protocols (including ICMP) supplied to IP in requests for
transmission. Note that this counter does not include any
datagrams counted in ipSystemStatsOutForwDatagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 20 }
ipSystemStatsHCOutRequests OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of IP datagrams that local IP user-
protocols (including ICMP) supplied to IP in requests for
transmission. This object counts the same packets as
ipSystemStatsOutRequests, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 21 }
ipSystemStatsOutNoRoutes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of locally generated IP datagrams discarded
because no route could be found to transmit them to their
destination.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime."
::= { ipSystemStatsEntry 22 }