JUNIPER-CHASSIS-CLUSTER-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › JUNIPER-CHASSIS-CLUSTER-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2013-09-20

Category: Technology: High Availability, Vendor: Juniper

Description: Provides management objects for chassis clustering (high availability) on Juniper Networks SRX firewalls, including redundancy group and node status.

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What Is JUNIPER-CHASSIS-CLUSTER-MIB?

JUNIPER-CHASSIS-CLUSTER-MIB is a Juniper Networks enterprise MIB for monitoring chassis clustering, the high-availability mechanism used primarily on SRX firewalls to pair two chassis into an active/standby (or active/active) redundant unit. It exposes cluster and redundancy-group status, node roles (primary/secondary), and failover-related state so an operator can confirm the cluster is healthy and correctly synchronized. This is fundamentally a hardware/software availability MIB: it directly reports whether a chassis has failed over, whether a node is degraded, and whether data/control planes remain synchronized, making it critical for detecting silent HA failures before they cause an outage. It is a Juniper-specific extension with no dependency on general IETF MIBs, since chassis clustering is a proprietary SRX feature, though it is often monitored alongside JUNIPER-FRU-MIB and interface MIBs for full HA visibility. Typical deployment is paired SRX firewalls in enterprise or data-center edge deployments requiring high availability. Engineers can download the JUNIPER-CHASSIS-CLUSTER-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-CHASSIS-CLUSTER-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 SRX firewall (chassis cluster pair)

Monitoring Examples

An administrator would poll redundancy-group status to confirm which chassis currently holds the primary role and verify both nodes report a healthy, synchronized state, catching a scenario where an unplanned failover has occurred or a redundancy group has become split-brain. No sample objects were extracted for this module, so specific table names cannot be cited, but the module description confirms its scope is chassis-cluster failover and redundancy-group objects. This MIB is essential for HA-pair fault detection rather than general traffic monitoring.

What Can Be Monitored

  • redundancy group status
  • primary/secondary node role
  • failover events
  • cluster synchronization state
Imported Objects

From JUNIPER-JS-SMI

jnxJsChassisClusterOBJECT-IDENTITY

From SNMPv2-SMI

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

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
OIDs

RFC description

Manages chassis clustering for Juniper devices ensuring minimal disruption during failover with cluster status and traps.

Start monitoring Juniper SRX firewall (chassis cluster HA pair) 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-CHASSIS-CLUSTER-MIB