Juniper-REDUNDANCY-MIB

All MIBs › Juniper-REDUNDANCY-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2003-12-12

Category: Technology: High Availability, Vendor: Juniper

Description: MIB from Juniper Networks for tracking the redundancy and failover state of routing engines and interface modules on E-series equipment.

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What Is Juniper-REDUNDANCY-MIB?

Juniper-REDUNDANCY-MIB is a Juniper Networks enterprise MIB for monitoring the redundancy and failover state of routing engines and interface modules on Juniper E-series routers. It exposes which slot is currently active versus standby, the state of each, the reason for the last reset, and timing/type details of the last system activation event. It is explicitly used to monitor hardware status: active/standby slot identity and state directly reflect the health of redundant hardware, juniRedundancyLastResetReason diagnoses unplanned failovers, and juniRedundancyHaActiveTime tracks uptime of the currently active routing engine. It is a self-contained Juniper enterprise MIB without a strong dependency on an external standards-based MIB. It is deployed on E-series routers configured with redundant routing engines or interface modules for high availability, and administrators can get a Juniper-REDUNDANCY-MIB download to load it directly into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Juniper-REDUNDANCY-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 E-series routers (redundant routing engines/interface modules)

Monitoring Examples

An admin compares juniRedundancyActiveSlot/juniRedundancyActiveSlotState against juniRedundancyStandbySlot/juniRedundancyStandbySlotState to confirm which routing engine is currently active and healthy. juniRedundancyLastResetReason and juniRedundancyLastSystemActivationTime are checked after an unplanned failover to diagnose its cause, while juniRedundancyHaActiveTime shows how long the current active engine has been running since the last switchover.

What Can Be Monitored

active/standby slot identity
active/standby slot state
last reset reason
last activation time/type
HA active time
redundancy mode configuration

Imported Objects

From Juniper-MIBs

juniMibs

MODULE-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-MIB

sysUpTime

OBJECT-TYPE

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

DateAndTime
DisplayString
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using juniRedundancyHistoryReloads OID:

Select a Juniper E-series router (redundant routing engines/interface modules) 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 juniRedundancyHistoryReloads into the Find box to locate it in the OID tree, then select it and click OK. Indicates the number of reloads since the system is powered on. 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 the count changes from its expected baseline, since that would indicate the underlying set of items changed unexpectedly. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
juniRedundancyMIB	1.3.6.1.4.1.4874.2.2.74			The redundancy configuration MIB for Juniper Networks enterprise.
juniRedundancyNotifications	1.3.6.1.4.1.4874.2.2.74.0
NTF juniRedundancyColdSwitchoverNotification	1.3.6.1.4.1.4874.2.2.74.0.1			This notification is generated in a dual SRP system when control transfers from one to SRP to the other in file system synchronization mode or when high availability is not operational. This notification is sent by the newly active SRP immediately following the switchover in which configuration is preserved but volatile state is lost.
NTF juniRedundancyWarmSwitchoverNotification	1.3.6.1.4.1.4874.2.2.74.0.2			This notification is generated in a dual SRP system when control transfers from one SRP to the other and high availability is operational. This notification is sent by the newly active SRP immediately following the switchover in which configuration and volatile state are preserved.
NTF juniRedundancyStateEnabledNotification	1.3.6.1.4.1.4874.2.2.74.0.3			A state change notification sent by active SRP whenever system enters 'active' state.
NTF juniRedundancyStateDisabledNotification	1.3.6.1.4.1.4874.2.2.74.0.4			A state change notification sent by active SRP whenever system enters 'disabled' state.
NTF juniRedundancyStatePendingNotification	1.3.6.1.4.1.4874.2.2.74.0.5			A state change notification sent by active SRP whenever system enters 'pending' state.
NTF juniRedundancyModeNotification	1.3.6.1.4.1.4874.2.2.74.0.6			A mode change notification sent by active SRP whenever redundancy mode of the system is changed from 'fileSystemSynchronization' to 'highAvailability' and vice versa.
juniRedundancyObjects	1.3.6.1.4.1.4874.2.2.74.1
juniRedundancyStatus	1.3.6.1.4.1.4874.2.2.74.1.1
I32 juniRedundancyActiveSlot	1.3.6.1.4.1.4874.2.2.74.1.1.1	Integer32	read-only	A unique identifier for active SRP slot.
JUN juniRedundancyActiveSlotState	1.3.6.1.4.1.4874.2.2.74.1.1.2	JuniRedundancyState	read-only	The current state of redundancy on active SRP.
I32 juniRedundancyStandbySlot	1.3.6.1.4.1.4874.2.2.74.1.1.3	Integer32	read-only	A unique identifier for standby SRP slot.
JUN juniRedundancyStandbySlotState	1.3.6.1.4.1.4874.2.2.74.1.1.4	JuniRedundancyState	read-only	The current state of redundancy on standby SRP.
JUN juniRedundancyLastResetReason	1.3.6.1.4.1.4874.2.2.74.1.1.5	JuniRedundancyResetReason	read-only	The reason for the last SRP reset.
TIK juniRedundancyLastSystemActivationTime	1.3.6.1.4.1.4874.2.2.74.1.1.6	TimeTicks	read-only	The value of sysUptime when the system is operational either following a reload or a switchover. The value 0 is a special value to indicate 'from reset'.
JUN juniRedundancyLastSystemActivationType	1.3.6.1.4.1.4874.2.2.74.1.1.7	JuniRedundancySystemActivationType	read-only	The type of last SRP activation when the system became operational.
TIK juniRedundancyHaActiveTime	1.3.6.1.4.1.4874.2.2.74.1.1.8	TimeTicks	read-only	The value of sysUptime when active SRP enters 'active' state as indicated in juniRedundancyActiveSlotState object. The value is 0 in file system synchronization redundancy mode.
juniRedundancyCfg	1.3.6.1.4.1.4874.2.2.74.1.2
T/F juniRedundancyNotifsEnabled	1.3.6.1.4.1.4874.2.2.74.1.2.1	TruthValue	read-write	Allows enabling and disabling of redundancy subsystem notifications.
JUN juniRedundancyCfgRedundancyMode	1.3.6.1.4.1.4874.2.2.74.1.2.2	JuniRedundancyMode	read-write	Indicates the redundancy mode configured on the system.
juniRedundancyHistory	1.3.6.1.4.1.4874.2.2.74.1.3
I32 juniRedundancySystemActivationHistoryTableMaxLength	1.3.6.1.4.1.4874.2.2.74.1.3.1	Integer32	read-write	Maximum number of entries allowed in juniRedundancySystemActivationHistoryTable. A value of 0 will result in no history being displayed in juniRedundancySystemActivationHistoryTable.
JUN juniRedundancySystemActivationHistoryCommand	1.3.6.1.4.1.4874.2.2.74.1.3.2	JuniRedundancyHistoryCommand	read-write	A control variable to perform certain operations on juniRedundancySystemActivationHistoryTable.
juniRedundancySystemActivationHistoryTable	1.3.6.1.4.1.4874.2.2.74.1.3.3		not-accessible	A table that tracks the history of all reloads and switchovers that have occurred since system is powered on. The maximum number of entries permissible in this table is defined by juniRedundancySystemActivationHistoryTableMaxLength. When the number of entries in the table reaches the maximum limit, the next entry would replace the oldest existing entry in the table.
juniRedundancySystemActivationHistoryEntry	1.3.6.1.4.1.4874.2.2.74.1.3.3.1		not-accessible	The entries in this table contain the reload and switchover information. Each entry in the table is indexed by juniRedundancySystemActivationHistoryIndex. The index wraps around to 1 after reaching the maximum value.
I32 juniRedundancySystemActivationHistoryIndex	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.1	Integer32	not-accessible	An integer value for the purpose of indexing system activation history table. After reaching maximum value as indicated by juniRedundancySystemActivationHistoryTableMaxLength, it wraps around to 1.
JUN juniRedundancyHistoryResetType	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.2	JuniRedundancyResetType	read-only	Indicates the nature of the reset - reload or switchover - and the slot types involved. Depending on the value of this object, certain elements of JuniRedundancySystemActivationHistoryEntry will not be applicable.
JUN juniRedundancyHistoryActivationType	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.3	JuniRedundancySystemActivationType	read-only	Indicates the activation type of the particular historical system activation entry with respect to the slot types involved.
I32 juniRedundancyHistoryPrevActiveSlot	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.4	Integer32	read-only	Indicates the slot number of active SRP or line card that went down.
STR juniRedundancyHistoryPrevActiveRelease	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.5	DisplayString	read-only	Indicates the system-wide boot release file name of the slot indicated by juniRedundancyHistoryPrevActiveSlot.
I32 juniRedundancyHistoryCurrActiveSlot	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.6	Integer32	read-only	Indicates the slot number of standby SRP or spare line card that took over.
STR juniRedundancyHistoryCurrActiveRelease	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.7	DisplayString	read-only	Indicates the system-wide boot release file name of the slot indicated by juniRedundancyHistoryCurrActiveSlot.
JUN juniRedundancyHistoryResetReason	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.8	JuniRedundancyResetReason	read-only	Indicates the reason for reload or switchover of the slots involved.
DAT juniRedundancyHistoryActivationTime	1.3.6.1.4.1.4874.2.2.74.1.3.3.1.9	DateAndTime	read-only	Indicates the date and time when the reload or switchover of the slots occurred.
I32 juniRedundancyHistoryReloadsEx	1.3.6.1.4.1.4874.2.2.74.1.3.4	Integer32	read-only	Indicates the number of reloads since the system is powered on.
I32 juniRedundancyHistoryColdSwitchovers	1.3.6.1.4.1.4874.2.2.74.1.3.5	Integer32	read-only	Indicates the number of cold switchovers since the system is powered on.
I32 juniRedundancyHistoryWarmSwitchovers	1.3.6.1.4.1.4874.2.2.74.1.3.6	Integer32	read-only	Indicates the number of warm switchovers since the system is powered on.
juniRedundancyMIBConformance	1.3.6.1.4.1.4874.2.2.74.2
juniRedundancyMIBCompliances	1.3.6.1.4.1.4874.2.2.74.2.1
juniRedundancyMIBCompliance	1.3.6.1.4.1.4874.2.2.74.2.1.1			The compliance statement for system redundancy support.
juniRedundancyMIBGroups	1.3.6.1.4.1.4874.2.2.74.2.2
juniRedundancyStatusGroup	1.3.6.1.4.1.4874.2.2.74.2.2.1			The collection of redundancy status objects.
juniRedundancyCfgGroup	1.3.6.1.4.1.4874.2.2.74.2.2.2			The collection of redundancy configuration objects.
juniRedundancyHistoryGroup	1.3.6.1.4.1.4874.2.2.74.2.2.3			The collection of redundancy history objects.
juniRedundancyNotificationGroup	1.3.6.1.4.1.4874.2.2.74.2.2.4			The collection of notifications for redundancy events.

RFC description

Juniper Networks MIB for monitoring redundancy and failover state of routing engine and interface modules on Juniper E-series.

Start monitoring Juniper E-series router (redundant routing engines/interface modules) 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-REDUNDANCY-MIB