JUNIPER-PMON-MIB

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Organization: Juniper Networks, Inc.

Last Updated: 2003-07-18

Category: Vendor: Juniper

Description: Juniper Networks MIB for passive monitoring (PMON) interface traffic statistics sampling on Juniper routing platforms.

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What Is JUNIPER-PMON-MIB?

JUNIPER-PMON-MIB is a Juniper Networks, Inc. proprietary MIB for the Passive Monitoring PIC, a line card that captures and exports flow records without participating in forwarding. Its objects cover current-active/total flow counts, total flow packets/bytes with 10-second averages, expired/aged/exported flow counts and exported-packet count, and an error table (flow-allocation/free failures, free-list failures, no-memory drops, not-IP/not-IPv4 drops, too-small drops, current/last overload state and time/date). As a performance MIB it lets an administrator watch flow-table capacity and overload events on a Juniper Passive Monitoring PIC. It is deployed on Juniper Networks routers with a Passive Monitoring PIC. Engineers can download the JUNIPER-PMON-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-PMON-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 (Passive Monitoring PIC)

Monitoring Examples

An administrator checks jnxPMonCurrentOverload and jnxPMonFlowAllocFailures to diagnose a Passive Monitoring PIC that has exhausted its flow table on a Juniper router.

What Can Be Monitored

flow-table capacity, export counts, and overload events

Imported Objects

From IF-MIB

ifDescr	OBJECT-TYPE
ifIndex	OBJECT-TYPE

From JUNIPER-SMI

jnxMibs	OBJECT-IDENTITY
jnxPMonNotifications	OBJECT-IDENTITY

From SNMPv2-SMI

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

From SNMPv2-TC

DateAndTime
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using jnxPMonFlowAllocFailures OID:

Select a Juniper Networks router with Passive Monitoring PIC 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 jnxPMonFlowAllocFailures into the Find box to locate it in the OID tree, then select it and click OK. The number of flow allocation failures. 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 Counter32-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
jnxPMon	1.3.6.1.4.1.2636.3.19			This is Juniper Networks' implementation of enterprise specific MIB for Passive Monitoring PIC
jnxPMonFlowTable	1.3.6.1.4.1.2636.3.19.1		not-accessible	a list of flow entry for Passive Monitoring PIC
jnxPMonFlowEntry	1.3.6.1.4.1.2636.3.19.1.1		not-accessible	An entry containing management information applicable to a particular monitor interfaces.
G32 jnxPMonCurrentActiveFlows	1.3.6.1.4.1.2636.3.19.1.1.1	Gauge32	read-only	The number of flows currently active.
C32 jnxPMonTotalFlows	1.3.6.1.4.1.2636.3.19.1.1.2	Counter32	read-only	The cumulative number of total flows.
C64 jnxPMonTotalFlowsPackets	1.3.6.1.4.1.2636.3.19.1.1.3	Counter64	read-only	The number of total flows packets.
G32 jnxPMonTenSecondAverageFlowPackets	1.3.6.1.4.1.2636.3.19.1.1.4	Gauge32	read-only	The number of flow packets per second in 10 second average.
C64 jnxPMonTotalFlowsBytes	1.3.6.1.4.1.2636.3.19.1.1.5	Counter64	read-only	The number of total flows bytes.
G32 jnxPMonTenSecondAverageFlowBytes	1.3.6.1.4.1.2636.3.19.1.1.6	Gauge32	read-only	The number of flow bytes per second in 10 second average.
C32 jnxPMonTotalFlowsExpired	1.3.6.1.4.1.2636.3.19.1.1.7	Counter32	read-only	The cumulative number of total flows expired.
C32 jnxPMonTotalFlowsAged	1.3.6.1.4.1.2636.3.19.1.1.8	Counter32	read-only	The cumulative number of total flows aged.
C32 jnxPMonTotalFlowsExported	1.3.6.1.4.1.2636.3.19.1.1.9	Counter32	read-only	The cumulative number of total flows exported.
C32 jnxPMonTotalFlowsPacketsExported	1.3.6.1.4.1.2636.3.19.1.1.10	Counter32	read-only	The cumulative number of total flows packets exported.
jnxPMonErrorTable	1.3.6.1.4.1.2636.3.19.2		not-accessible	a list of error entry for Passive Monitoring PIC
jnxPMonErrorEntry	1.3.6.1.4.1.2636.3.19.2.1		not-accessible	An entry containing management information applicable to a particular monitor interfaces.
C32 jnxPMonFlowAllocFailuresEx	1.3.6.1.4.1.2636.3.19.2.1.1	Counter32	read-only	The number of flow allocation failures.
C32 jnxPMonFlowFreeFailures	1.3.6.1.4.1.2636.3.19.2.1.2	Counter32	read-only	The number of flow free failures.
C32 jnxPMonFreeListFailures	1.3.6.1.4.1.2636.3.19.2.1.3	Counter32	read-only	The number of free list failures.
C64 jnxPMonNoMemDrops	1.3.6.1.4.1.2636.3.19.2.1.4	Counter64	read-only	The number of packet drops due to low/no memory.
C64 jnxPMonNotIPDrops	1.3.6.1.4.1.2636.3.19.2.1.5	Counter64	read-only	The number of packet drops due to not IP.
C64 jnxPMonNotIPv4Drops	1.3.6.1.4.1.2636.3.19.2.1.6	Counter64	read-only	The number of packet drops due to not IPv4.
C64 jnxPMonTooSmallDrops	1.3.6.1.4.1.2636.3.19.2.1.7	Counter64	read-only	The number of packet drops due to too small on header.
JNX jnxPMonCurrentOverload	1.3.6.1.4.1.2636.3.19.2.1.8	JnxPMonOverloadId	read-only	Identifies current overload conditions that exist on this interface.
JNX jnxPMonLastOverload	1.3.6.1.4.1.2636.3.19.2.1.9	JnxPMonOverloadId	read-only	Identifies the last overload condition to change on this interface.
TIK jnxPMonLastOverloadTime	1.3.6.1.4.1.2636.3.19.2.1.10	TimeTicks	read-only	The value of sysUpTime when the management subsystem last learned of a change to the overload condition on this interface.
DAT jnxPMonLastOverloadDate	1.3.6.1.4.1.2636.3.19.2.1.11	DateAndTime	read-only	The system date and time when the management subsystem last learned of a change to the overload condition on this interface.
INT jnxPMonLastOverloadEvent	1.3.6.1.4.1.2636.3.19.2.1.12	INTEGER	read-only	This indicates whether the last overload event set a new overload condition or cleared an existing condition.
jnxPMonMemoryTable	1.3.6.1.4.1.2636.3.19.3		not-accessible	a list of memory entry for Passive Monitoring PIC
jnxPMonMemoryEntry	1.3.6.1.4.1.2636.3.19.3.1		not-accessible	An entry containing management information applicable to a particular monitor interfaces.
C64 jnxPMonFlowTotalAlloc	1.3.6.1.4.1.2636.3.19.3.1.1	Counter64	read-only	The number of flow records allocated.
C64 jnxPMonFlowTotalFree	1.3.6.1.4.1.2636.3.19.3.1.2	Counter64	read-only	The number of flow records freed.
C64 jnxPMonFlowMaxAlloc	1.3.6.1.4.1.2636.3.19.3.1.3	Counter64	read-only	The number of maximum flow records allocated.
G32 jnxPMonAllocPerSecond	1.3.6.1.4.1.2636.3.19.3.1.4	Gauge32	read-only	The number of flow records allocated per second.
G32 jnxPMonFreePerSecond	1.3.6.1.4.1.2636.3.19.3.1.5	Gauge32	read-only	The number of flow records freed per second.
G32 jnxPMonTotalMemoryUsed	1.3.6.1.4.1.2636.3.19.3.1.6	Gauge32	read-only	The total amount of memory currently used in KBbytes.
G32 jnxPMonTotalMemoryFree	1.3.6.1.4.1.2636.3.19.3.1.7	Gauge32	read-only	The total amount of memory currently freed in KBbytes.
jnxPMonNotificationPrefix	1.3.6.1.4.1.2636.4.7.0
NTF jnxPMonOverloadSet	1.3.6.1.4.1.2636.4.7.0.1			Notification of a new overload condition on a Passive Monitoring interface.
NTF jnxPMonOverloadCleared	1.3.6.1.4.1.2636.4.7.0.2			Notification of a cleared overload condition on a Passive Monitoring interface.

RFC description

Juniper Networks' Performance Monitoring MIB that enables real-time access to performance monitoring data over SNMP, including support for RPM (Real-Time Performance Monitoring) measurements such as jitter, latency, and packet loss metrics.

Start monitoring Juniper Networks router with Passive Monitoring PIC with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download JUNIPER-PMON-MIB