JUNIPER-IF-MIB

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Organization: Juniper Networks, Inc.

Last Updated: 2011-09-22

Category: Network Interfaces, Vendor: Juniper

Description: Defines extended interface managed objects for Juniper Networks devices, supplementing the standard IF-MIB with vendor-specific attributes.

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What Is JUNIPER-IF-MIB?

JUNIPER-IF-MIB is a vendor-specific extension MIB from Juniper Networks that supplements the standard IETF IF-MIB with additional interface-related managed objects for Juniper routers and switches. It exposes data augmenting the standard ifTable, adding Juniper-specific interface attributes not covered by generic interface counters and status codes. It is used chiefly for monitoring interface hardware and software status, including link-level operational state, interface-specific error conditions, and other per-interface health indicators that complement standard traffic and uptime counters. The MIB explicitly extends the ifTable defined in the standard IF-MIB (RFC 2863), so it must be polled alongside that MIB rather than in isolation. It is typically deployed in network operations centers monitoring Juniper routing and switching platforms for interface-level fault and performance visibility. Network engineers evaluating or troubleshooting this functionality can download the JUNIPER-IF-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-IF-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Juniper Networks routers
Juniper Networks switches

Monitoring Examples

Because this MIB extends ifTable, an administrator would correlate entries keyed by ifIndex between the standard IF-MIB ifTable and this module's supplemental columns to get a fuller picture of a given interface's state on a Juniper device. A sudden change in a Juniper-specific interface attribute alongside a drop in ifOperStatus from the base IF-MIB would flag a hardware or link-layer fault on that port. No sample object names were provided for this module beyond its relationship to ifTable, so specific column names cannot be confirmed from source.

What Can Be Monitored

interface operational status
interface-specific extended attributes
interface error conditions
per-interface link state

Imported Objects

From HCNUM-TC

CounterBasedGauge64

From IF-MIB

ifEntry	OBJECT-TYPE
ifIndex	OBJECT-TYPE

From JUNIPER-SMI

jnxMibs

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

TimeStamp

How to Use in IPNetwork Monitor

Example using ifJnxInErrors OID:

Select a Juniper Networks router/switch (ifTable extension) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type ifJnxInErrors into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports errors: The sum of the incoming frame aborts and FCS errors. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
I32 ifChassisChannel	1.3.6.1.4.1.2636.3.3.2.1.4	Integer32	read-only	The channel identifier for the specified interface if and only if it is part of a channelized interface. Although the channel is numbered from 0 and up in the interface naming, the return value for this object always starts from 1 according to Network Management convention. For the interface which could not be channelized, this object returns zero.
ifChassisEntry	1.3.6.1.4.1.2636.3.3.2.1		not-accessible	An entry containing additional management information applicable to a particular interface.
I32 ifChassisFpc	1.3.6.1.4.1.2636.3.3.2.1.1	Integer32	read-only	The number of the FPC card on which the interface is located in the chassis. It is the chassis slot in which the FPC card is installed for the specified interface. Although the number is labeled from 0 and up in the chassis, the return value for this object always starts from 1 according to Network Management convention. Therefore, a value of zero means there is no real or physical FPC associated with the specified interface.
I32 ifChassisLogicalUnit	1.3.6.1.4.1.2636.3.3.2.1.5	Integer32	read-only	The logical unit number of the specified interface. It is the logical part of the interface that is configured on the physical or channel part if any. Although the logical unit number is numbered from 0 and up in the interface naming, the return value for this object always starts from 1 according to Network Management convention. For the interface which is really a physical device, this value returns zero.
I32 ifChassisPic	1.3.6.1.4.1.2636.3.3.2.1.2	Integer32	read-only	The number of the PIC card on which the interface is located in the chassis. It is the PIC location on the FPC card for the specified interface. Although the number is labeled from 0 and up in the chassis, the return value for this object always starts from 1 according to Network Management convention. Therefore, a value of zero means there is no real or physical PIC associated with the specified interface.
OCT ifChassisPicIndex	1.3.6.1.4.1.2636.3.3.2.1.6	OCTET STRING	read-only	The index or indices for the Chassis MIB tables. This is the instance index which keys into the jnxContentsTable in Chassis MIB. For example, it could return an octet string of '8.1.2.0' - meaning a PIC ('8', first digit) at FPC slot 0 ('1-1', second digit minus one if nonzero) PIC number 1 ('2-1', third digit minus one if nonzero) port number whatever (fourth digit currently unused) - which in turn could be plugged in by NMS directly after any MIB objects in the jnxContentsTable, say 'jnxContentsDescr.8.1.2.0', so NMS could get that PIC object for the specified interface. This object is valid only for those interfaces having real and physical PIC cards. Otherwise, it returns an octet string of four zeros '0.0.0.0.'
I32 ifChassisPort	1.3.6.1.4.1.2636.3.3.2.1.3	Integer32	read-only	The number of the port on the PIC card on which the interface is located in the chassis. It is the port number on the PIC card for the specified interface. Although the number is labeled from 0 and up in the chassis, the return value for this object always starts from 1 according to Network Management convention. Therefore, a value of zero means there is no real or physical port associated with the specified interface.
ifChassisTable	1.3.6.1.4.1.2636.3.3.2		not-accessible	A list of Juniper's extension to the interface entries. The number of entries is given by the value of ifNumber. This table contains additional objects for the interface table to facilitate the identification of interfaces and its mapping into the Chassis MIB tables.
NUM ifHCIn1SecRate	1.3.6.1.4.1.2636.3.3.1.1.7	CounterBasedGauge64	read-only	The number of bits per second (bps), delivered by this (sub-)layer to its next higher (sub-)layer. This object is a 64 bit version of ifIn1SecRate.
NUM ifHCOut1SecRate	1.3.6.1.4.1.2636.3.3.1.1.8	CounterBasedGauge64	read-only	The number of bits per second (bps), delivered by this (sub-)layer to its next lower (sub-)layer. This object is a 64 bit version of ifOut1SecRate.
G32 ifIn1SecOctets	1.3.6.1.4.1.2636.3.3.1.1.2	Gauge32	read-only	The number of octets per second (Bps, Bytes per second), delivered by this (sub-)layer to its next higher (sub-)layer.
G32 ifIn1SecPkts	1.3.6.1.4.1.2636.3.3.1.1.3	Gauge32	read-only	The number of packets per second (pps), delivered by this (sub-)layer to its next higher (sub-)layer.
G32 ifIn1SecRate	1.3.6.1.4.1.2636.3.3.1.1.1	Gauge32	read-only	The number of bits per second (bps), delivered by this (sub-)layer to its next higher (sub-)layer.
ifJnx	1.3.6.1.4.1.2636.3.3			The MIB modules extends the ifTable as defined in IF-MIB.
C64 ifJnxBucketDrops	1.3.6.1.4.1.2636.3.3.1.1.22	Counter64	read-only	Bucket drops: Drops due to traffic load exceeding the interface transmit/receive leaky bucket configuration.
C64 ifJnxCarrierTrans	1.3.6.1.4.1.2636.3.3.1.1.26	Counter64	read-only	Carrier transitions: The number of times the interface saw the carrier signal transition.
C64 ifJnxCollisions	1.3.6.1.4.1.2636.3.3.1.1.25	Counter64	read-only	Collisions: The number of output collisions detected on this interface.
C64 ifJnxCrcErrors	1.3.6.1.4.1.2636.3.3.1.1.32	Counter64	read-only	CRC Errors: The number of CRC errors
ifJnxEntry	1.3.6.1.4.1.2636.3.3.1.1		not-accessible	An entry containing additional management information applicable to a particular interface.
NTF ifJnxErrors	1.3.6.1.4.1.2636.3.3.3.0.1			A ifJnxErrors notification is sent when the value of ifJnxCrcErrors or ifJnxFcsErrors increases.
C64 ifJnxFcsErrors	1.3.6.1.4.1.2636.3.3.1.1.33	Counter64	read-only	FCS Errors: The number of FCS errors
C64 ifJnxInDiscards	1.3.6.1.4.1.2636.3.3.1.1.14	Counter64	read-only	Policed Discards: Frames that the incoming packet match code discarded because they were not recognized or of interest.
C64 ifJnxInErrorsEx	1.3.6.1.4.1.2636.3.3.1.1.9	Counter64	read-only	Errors: The sum of the incoming frame aborts and FCS errors.
C32 ifJnxInFifoErrors	1.3.6.1.4.1.2636.3.3.1.1.21	Counter32	read-only	FIFO errors: The number of FIFO errors in the receive direction as reported by the ASIC on the PIC.
C64 ifJnxInFrameErrors	1.3.6.1.4.1.2636.3.3.1.1.10	Counter64	read-only	Framing Errors: The number of input packets which were misaligned.
C64 ifJnxInGiants	1.3.6.1.4.1.2636.3.3.1.1.13	Counter64	read-only	Giants: Frames received that are larger than the giant threshold.
C64 ifJnxInHslCrcErrors	1.3.6.1.4.1.2636.3.3.1.1.15	Counter64	read-only	HS Link CRC Errors: The number of CRC errors on the high-speed links between the ASICs responsible for handling the router interfaces while receiving packets.
C64 ifJnxInHslFifoOverFlows	1.3.6.1.4.1.2636.3.3.1.1.16	Counter64	read-only	HS link FIFO overflows: The number of FIFO overflows on the high-speed links between the ASICs responsible for handling the router interfaces.
C64 ifJnxInInvalidVCs	1.3.6.1.4.1.2636.3.3.1.1.20	Counter64	read-only	Invalid VCs: Number of cells that arrived for a nonexistent virtual circuit.
C64 ifJnxInL2ChanErrors	1.3.6.1.4.1.2636.3.3.1.1.18	Counter64	read-only	L2 channel errors: the number of incoming packets for which the sofware could not find a valid logical interface.
C64 ifJnxInL2MismatchTimeouts	1.3.6.1.4.1.2636.3.3.1.1.19	Counter64	read-only	L2 mismatch timeouts: The count of malformed or short packets that cause the incoming packet handler to discard the frame as unreadable.
C64 ifJnxInL3Incompletes	1.3.6.1.4.1.2636.3.3.1.1.17	Counter64	read-only	L3 incompletes: The number of incoming packets that fail Layer 3 sanity checks of the header.
C64 ifJnxInPolDrop1SecRate	1.3.6.1.4.1.2636.3.3.4.1.15	Counter64	read-only	Logical Interface Policer Input Drop 1 Sec Rate
C64 ifJnxInPolDropOctets	1.3.6.1.4.1.2636.3.3.4.1.13	Counter64	read-only	Logical Interface Policer Input Drop Bytes
C64 ifJnxInPolDropPkts	1.3.6.1.4.1.2636.3.3.4.1.14	Counter64	read-only	Logical Interface Policer Input Drop Pkts
C64 ifJnxInPolHigh1SecRate	1.3.6.1.4.1.2636.3.3.4.1.12	Counter64	read-only	Logical Interface Policer Input High 1 Sec Rate
C64 ifJnxInPolHighOctets	1.3.6.1.4.1.2636.3.3.4.1.10	Counter64	read-only	Logical Interface Policer Input High Bytes
C64 ifJnxInPolHighPkts	1.3.6.1.4.1.2636.3.3.4.1.11	Counter64	read-only	Logical Interface Policer Input High Pkts
C64 ifJnxInPolLow1SecRate	1.3.6.1.4.1.2636.3.3.4.1.3	Counter64	read-only	Logical Interface Policer Input Low 1 Sec Rate
C64 ifJnxInPolLowOctets	1.3.6.1.4.1.2636.3.3.4.1.1	Counter64	read-only	Logical Interface Policer Input Low Bytes
C64 ifJnxInPolLowPkts	1.3.6.1.4.1.2636.3.3.4.1.2	Counter64	read-only	Logical Interface Policer Input Low Pkts
C64 ifJnxInPolMHigh1SecRate	1.3.6.1.4.1.2636.3.3.4.1.9	Counter64	read-only	Logical Interface Policer Input Medium High 1 Sec Rate
C64 ifJnxInPolMHighOctets	1.3.6.1.4.1.2636.3.3.4.1.7	Counter64	read-only	Logical Interface Policer Input Medium High Bytes
C64 ifJnxInPolMHighPkts	1.3.6.1.4.1.2636.3.3.4.1.8	Counter64	read-only	Logical Interface Policer Input Medium High Pkts
C64 ifJnxInPolMLow1SecRate	1.3.6.1.4.1.2636.3.3.4.1.6	Counter64	read-only	Logical Interface Policer Input Medium Low 1 Sec Rate
C64 ifJnxInPolMLowOctets	1.3.6.1.4.1.2636.3.3.4.1.4	Counter64	read-only	Logical Interface Policer Input Medium Low Bytes
C64 ifJnxInPolMLowPkts	1.3.6.1.4.1.2636.3.3.4.1.5	Counter64	read-only	Logical Interface Policer Input Medium Low Pkts
C64 ifJnxInQDrops	1.3.6.1.4.1.2636.3.3.1.1.11	Counter64	read-only	Drops: The number of packets dropped by the input queue of the I/O Manager ASIC.
C64 ifJnxInRunts	1.3.6.1.4.1.2636.3.3.1.1.12	Counter64	read-only	Runts: Frames received that are smaller than the runt threshold.
ifJnxNotification	1.3.6.1.4.1.2636.3.3.3
ifJnxNotificationPrefix	1.3.6.1.4.1.2636.3.3.3.0
C64 ifJnxOutAgedErrors	1.3.6.1.4.1.2636.3.3.1.1.28	Counter64	read-only	Aged packets: The number of packets that remained in shared packet SDRAM for so long that the system automatically purged them.
C64 ifJnxOutErrors	1.3.6.1.4.1.2636.3.3.1.1.24	Counter64	read-only	Errors: The sum of the outgoing frame aborts and FCS errors.
C32 ifJnxOutFifoErrors	1.3.6.1.4.1.2636.3.3.1.1.29	Counter32	read-only	FIFO errors: The number of FIFO errors in the transmit direction as reported by the ASIC on the PIC.
C32 ifJnxOutHslCrcErrors	1.3.6.1.4.1.2636.3.3.1.1.31	Counter32	read-only	HS Link CRC Errors: The number of CRC errors on the high-speed links between the ASICs responsible for handling the router interfaces while transmitting packets.
C64 ifJnxOutHslFifoUnderFlows	1.3.6.1.4.1.2636.3.3.1.1.30	Counter64	read-only	HS link FIFO underflows: The number of FIFO underflows on the high-speed links between the ASICs responsible for handling the router interfaces.
C64 ifJnxOutPolDrop1SecRate	1.3.6.1.4.1.2636.3.3.4.1.30	Counter64	read-only	Logical Interface Policer Output Drop 1 Sec Rate
C64 ifJnxOutPolDropOctets	1.3.6.1.4.1.2636.3.3.4.1.28	Counter64	read-only	Logical Interface Policer Output Drop Bytes
C64 ifJnxOutPolDropPkts	1.3.6.1.4.1.2636.3.3.4.1.29	Counter64	read-only	Logical Interface Policer Output Drop Pkts
C64 ifJnxOutPolHigh1SecRate	1.3.6.1.4.1.2636.3.3.4.1.27	Counter64	read-only	Logical Interface Policer Output High 1 Sec Rate
C64 ifJnxOutPolHighOctets	1.3.6.1.4.1.2636.3.3.4.1.25	Counter64	read-only	Logical Interface Policer Output High Bytes
C64 ifJnxOutPolHighPkts	1.3.6.1.4.1.2636.3.3.4.1.26	Counter64	read-only	Logical Interface Policer Output High Pkts
C64 ifJnxOutPolLow1SecRate	1.3.6.1.4.1.2636.3.3.4.1.18	Counter64	read-only	Logical Interface Policer Output Low 1 Sec Rate
C64 ifJnxOutPolLowOctets	1.3.6.1.4.1.2636.3.3.4.1.16	Counter64	read-only	Logical Interface Policer Output Low Bytes
C64 ifJnxOutPolLowPkts	1.3.6.1.4.1.2636.3.3.4.1.17	Counter64	read-only	Logical Interface Policer Output Low Pkts
C64 ifJnxOutPolMHigh1SecRate	1.3.6.1.4.1.2636.3.3.4.1.24	Counter64	read-only	Logical Interface Policer Output Medium High 1 Sec Rate
C64 ifJnxOutPolMHighOctets	1.3.6.1.4.1.2636.3.3.4.1.22	Counter64	read-only	Logical Interface Policer Output Medium High Bytes
C64 ifJnxOutPolMHighPkts	1.3.6.1.4.1.2636.3.3.4.1.23	Counter64	read-only	Logical Interface Policer Output Medium High Pkts
C64 ifJnxOutPolMLow1SecRate	1.3.6.1.4.1.2636.3.3.4.1.21	Counter64	read-only	Logical Interface Policer Output Medium Low 1 Sec Rate
C64 ifJnxOutPolMLowOctets	1.3.6.1.4.1.2636.3.3.4.1.19	Counter64	read-only	Logical Interface Policer Output Medium Low Bytes
C64 ifJnxOutPolMLowPkts	1.3.6.1.4.1.2636.3.3.4.1.20	Counter64	read-only	Logical Interface Policer Input Medium Low Pkts
C64 ifJnxOutQDrops	1.3.6.1.4.1.2636.3.3.1.1.27	Counter64	read-only	Drops: The number of packets dropped by the output queue of the I/O Manager ASIC.
ifJnxPolEntry	1.3.6.1.4.1.2636.3.3.4.1		not-accessible	An entry containing additional management information applicable to a particular interface.
ifJnxPolTable	1.3.6.1.4.1.2636.3.3.4		not-accessible	A list of Juniper's extension to the interface entries. The number of entries is given by the value of ifNumber. This table contains additional objects for the interface table.
C32 ifJnxSramErrors	1.3.6.1.4.1.2636.3.3.1.1.23	Counter32	read-only	SRAM errors: This counter increments when a hardware error has occurred in the SRAM on the PIC.
ifJnxTable	1.3.6.1.4.1.2636.3.3.1		not-accessible	A list of Juniper's extension to the interface entries. The number of entries is given by the value of ifNumber. This table contains additional objects for the interface table.
G32 ifOut1SecOctets	1.3.6.1.4.1.2636.3.3.1.1.5	Gauge32	read-only	The number of octets per second (Bps, Bytes per second), delivered by this (sub-)layer to its next lower (sub-)layer.
G32 ifOut1SecPkts	1.3.6.1.4.1.2636.3.3.1.1.6	Gauge32	read-only	The number of packets per second (pps), delivered by this (sub-)layer to its next lower (sub-)layer.
G32 ifOut1SecRate	1.3.6.1.4.1.2636.3.3.1.1.4	Gauge32	read-only	The number of bits per second (bps), delivered by this (sub-)layer to its next lower (sub-)layer.

RFC description

Juniper interface extension MIB for enhanced interface statistics and performance monitoring.

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Download JUNIPER-IF-MIB