interfaces

MIB Information: interfaces
1.3.6.1.2.1.2

ifNumber

MIB Information: ifNumber
1.3.6.1.2.1.2.1
mandatory read-only

Description: The number of network interfaces (regardless of their current state) present on this system.

Settings: INTEGER

ifTable

MIB Information: ifTable
1.3.6.1.2.1.2.2
not-accessible

Description: A list of interface entries. The number of entries is given by the value of ifNumber.

ifEntry

MIB Information: ifEntry
1.3.6.1.2.1.2.2.1
not-accessible

Description: An interface entry containing objects at the subnetwork layer and below for a particular interface.

ifIndex

MIB Information: ifIndex
1.3.6.1.2.1.2.2.1.1
mandatory read-only

Description: A unique value for each interface. Its value ranges between 1 and the value of ifNumber. The value for each interface must remain constant at least from one re-initialization of the entity's network management system to the next re- initialization.

Settings: INTEGER

ifDescr

MIB Information: ifDescr
1.3.6.1.2.1.2.2.1.2
mandatory read-only

Description: A textual string containing information about the interface. This string should include the name of the manufacturer the product name and the version of the hardware interface.

Settings: DisplayString

Syntax Ref. Type: SIZE

0 = 255

ifType

MIB Information: ifType
1.3.6.1.2.1.2.2.1.3
mandatory read-only

Description: The type of interface distinguished according to the physical/link protocol(s) immediately \Qbelow' the network layer in the protocol stack.

Settings: INTEGER

Syntax Ref. Type: ENUM

(1) = other
(2) = regular1822
(3) = hdh1822
(4) = ddn-x25
(5) = rfc877-x25
(6) = ethernet-csmacd
(7) = iso88023-csmacd
(8) = iso88024-tokenBus
(9) = iso88025-tokenRing
(10) = iso88026-man
(11) = starLan
(12) = proteon-10Mbit
(13) = proteon-80Mbit
(14) = hyperchannel
(15) = fddi
(16) = lapb
(17) = sdlc
(18) = ds1
(19) = e1
(20) = basicISDN
(21) = primaryISDN
(22) = propPointToPointSerial
(23) = ppp
(24) = softwareLoopback
(25) = eon
(26) = ethernet-3Mbit
(27) = nsip
(28) = slip
(29) = ultra
(30) = ds3
(31) = sip
(32) = frame-relay

ifMtu

MIB Information: ifMtu
1.3.6.1.2.1.2.2.1.4
mandatory read-only

Description: The size of the largest datagram which can be sent/received on the interface specified in octets. For interfaces that are used for transmitting network datagrams this is the size of the largest network datagram that can be sent on the interface.

Settings: INTEGER

ifSpeed

MIB Information: ifSpeed
1.3.6.1.2.1.2.2.1.5
mandatory read-only

Description: An estimate of the interface's current bandwidth in bits per second. For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made this object should contain the nominal bandwidth.

Settings: Gauge

ifPhysAddress

MIB Information: ifPhysAddress
1.3.6.1.2.1.2.2.1.6
mandatory read-only

Description: The interface's address at the protocol layer immediately \Qbelow' the network layer in the protocol stack. For interfaces which do not have such an address (e.g. a serial line) this object should contain an octet string of zero length.

Settings: PhysAddress

ifAdminStatus

MIB Information: ifAdminStatus
1.3.6.1.2.1.2.2.1.7
mandatory read-write

Description: The desired state of the interface. The testing(3) state indicates that no operational packets can be passed.

Settings: INTEGER

Syntax Ref. Type: ENUM

(1) = up
(2) = down
(3) = testing

ifOperStatus

MIB Information: ifOperStatus
1.3.6.1.2.1.2.2.1.8
mandatory read-only

Description: The current operational state of the interface. The testing(3) state indicates that no operational packets can be passed.

Settings: INTEGER

Syntax Ref. Type: ENUM

(1) = up
(2) = down
(3) = testing

ifLastChange

MIB Information: ifLastChange
1.3.6.1.2.1.2.2.1.9
mandatory read-only

Description: The value of sysUpTime at the time the interface entered its current operational state. If the current state was entered prior to the last re- initialization of the local network management subsystem then this object contains a zero value.

Settings: TimeTicks

ifInOctets

MIB Information: ifInOctets
1.3.6.1.2.1.2.2.1.10
mandatory read-only

Description: The total number of octets received on the interface including framing characters.

Settings: Counter

ifInUcastPkts

MIB Information: ifInUcastPkts
1.3.6.1.2.1.2.2.1.11
mandatory read-only

Description: The number of subnetwork-unicast packets delivered to a higher-layer protocol.

Settings: Counter

ifInNUcastPkts

MIB Information: ifInNUcastPkts
1.3.6.1.2.1.2.2.1.12
mandatory read-only

Description: The number of non-unicast (i.e. subnetwork- broadcast or subnetwork-multicast) packets delivered to a higher-layer protocol.

Settings: Counter

ifInDiscards

MIB Information: ifInDiscards
1.3.6.1.2.1.2.2.1.13
mandatory read-only

Description: The number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol. One possible reason for discarding such a packet could be to free up buffer space.

Settings: Counter

ifInErrors

MIB Information: ifInErrors
1.3.6.1.2.1.2.2.1.14
mandatory read-only

Description: The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol.

Settings: Counter

ifInUnknownProtos

MIB Information: ifInUnknownProtos
1.3.6.1.2.1.2.2.1.15
mandatory read-only

Description: The number of packets received via the interface which were discarded because of an unknown or unsupported protocol.

Settings: Counter

ifOutOctets

MIB Information: ifOutOctets
1.3.6.1.2.1.2.2.1.16
mandatory read-only

Description: The total number of octets transmitted out of the interface including framing characters.

Settings: Counter

ifOutUcastPkts

MIB Information: ifOutUcastPkts
1.3.6.1.2.1.2.2.1.17
mandatory read-only

Description: The total number of packets that higher-level protocols requested be transmitted to a subnetwork-unicast address including those that were discarded or not sent.

Settings: Counter

ifOutNUcastPkts

MIB Information: ifOutNUcastPkts
1.3.6.1.2.1.2.2.1.18
mandatory read-only

Description: The total number of packets that higher-level protocols requested be transmitted to a non- unicast (i.e. a subnetwork-broadcast or subnetwork-multicast) address including those that were discarded or not sent.

Settings: Counter

ifOutDiscards

MIB Information: ifOutDiscards
1.3.6.1.2.1.2.2.1.19
mandatory read-only

Description: The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Settings: Counter

ifOutErrors

MIB Information: ifOutErrors
1.3.6.1.2.1.2.2.1.20
mandatory read-only

Description: The number of outbound packets that could not be transmitted because of errors.

Settings: Counter

ifOutQLen

MIB Information: ifOutQLen
1.3.6.1.2.1.2.2.1.21
mandatory read-only

Description: The length of the output packet queue (in packets).

Settings: Gauge

ifSpecific

MIB Information: ifSpecific
1.3.6.1.2.1.2.2.1.22
mandatory read-only

Description: A reference to MIB definitions specific to the particular media being used to realize the interface. For example if the interface is realized by an ethernet then the value of this object refers to a document defining objects specific to ethernet. If this information is not present its value should be set to the OBJECT IDENTIFIER 0 0 which is a syntatically valid object identifier and any conformant implementation of ASN.1 and BER must be able to generate and recognize this value.

Settings: OBJECT IDENTIFIER





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