JUNIPER-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsJUNIPER-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2013-05-22

Category: Hardware and Environment, Vendor: Juniper

Description: Juniper Networks enterprise MIB providing hardware chassis information, system inventory, and device identification for Junos OS-based routers and switches.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring JUNIPER-MIB with a free 30-day trial of IPNetwork Monitor.

What Is JUNIPER-MIB?

JUNIPER-MIB is Juniper Networks' top-level enterprise MIB module, providing the base framework for hardware chassis information, system inventory, and device identification across Junos OS-based routers and switches. It belongs to the enterprise networking/routing-and-switching technology area. It exposes general categories of data including chassis/hardware inventory, system identification, and the OID registration structure under which Juniper's many device-specific and feature-specific MIBs (interfaces, environment, performance, alarms) are organized. As a foundational module it supports monitoring of hardware status such as chassis component identity and inventory, complementing dependent Juniper MIBs that expose temperature, CPU/memory load, power supply, and fan health in detail. Loading JUNIPER-MIB into a juniper mib browser mainly surfaces this enterprise OID tree and chassis registration structure, since the module itself defines little pollable data beyond that framework. It depends on and interoperates with the standard RFC 2737 ENTITY-MIB and numerous Juniper-specific extension MIBs layered on this enterprise tree. It is deployed in service-provider and enterprise networks running Juniper routers, switches, and security appliances (Junos OS).

IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-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/switches/security appliances running Junos OS (any generation)

Monitoring Examples

No sample objects were supplied for JUNIPER-MIB itself, so a concrete instance-level polling scenario cannot be grounded in verified object names; in practice this module functions as the enterprise-tree anchor, and an operator would poll the dependent Juniper hardware/environment MIBs rooted under this tree for temperature, CPU, and chassis component status rather than polling JUNIPER-MIB directly.

Imported Objects

From JUNIPER-SMI

jnxChassisOKTrapsOBJECT-IDENTITY
jnxChassisTrapsOBJECT-IDENTITY
jnxMibsOBJECT-IDENTITY

From SNMPv2-SMI

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

From SNMPv2-TC

DateAndTime
DisplayString
TEXTUAL-CONVENTION
TimeInterval
TimeStamp

How to Use in IPNetwork Monitor

Example using jnxBoxKernelMemoryUsedPercent OID:

Select a Juniper Networks Junos OS device 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 jnxBoxKernelMemoryUsedPercent into the Find box to locate it in the OID tree, then select it and click OK. It reports the percentage of kernel memory currently in use on this device. 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 an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if kernel memory usage exceeds 90%, since sustained high kernel memory pressure can lead to dropped packets or process instability. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Defines enterprise-specific MIB objects supported by Juniper Networks Junos OS-based devices.

Start monitoring Juniper Networks Junos OS device (top-level enterprise MIB, any generation) 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-MIB