All MIBs › ARISTA-GENERAL-MIB
Organization: Arista Networks, Inc.
Last Updated: 2017-11-06
Category: Vendor: Arista
Description:
Arista EOS general system information including reload cause and feature status.
Imported Objects
From ARISTA-SMI-MIB
| aristaMibs | OBJECT-IDENTITY |
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| OBJECT-GROUP |
From SNMPv2-SMI
| MODULE-IDENTITY | |
| OBJECT-TYPE | |
| Unsigned32 |
From SNMPv2-TC
| DateAndTime |
What Is ARISTA-GENERAL-MIB?
ARISTA-GENERAL-MIB is a vendor-specific MIB from Arista Networks (EOS) providing general, device-wide system information not tied to any single subsystem, most notably a history of reload/reboot causes. It exposes a reload-cause table recording why and when the switch (or a specific unit in a multi-chassis system) last restarted, along with general notification, object, and conformance groupings for broader system status. Its monitoring emphasis is software/hardware status at the whole-device level: aristaReloadCauseDescription and aristaReloadTime let an operator determine whether a switch rebooted due to a software crash, a manual reload, a power event, or a watchdog trigger — critical for distinguishing planned maintenance from an unexpected outage. As a young, evolving module (noted as a "first draft"), it is expected to depend on and complement Arista's broader system/entity MIBs over time. It is deployed on Arista EOS switches, particularly in environments wanting automated root-cause tracking of device restarts across a fleet. Engineers can download the ARISTA-GENERAL-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in ARISTA-GENERAL-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.
What Can Be Monitored
- last reload/reboot cause
- reload timestamp
- per-unit reload history (for multi-unit systems)
Supported Devices
- Arista Networks EOS switch
Monitoring Examples
An administrator would poll aristaReloadCauseTable keyed by aristaReloadUnitIndex and aristaReloadIndex to retrieve aristaReloadCauseDescription and aristaReloadTime for the most recent restart of each unit in a modular or clustered Arista system. A cause description indicating a kernel panic or unexpected power loss, correlated with aristaReloadTime, would trigger escalation as an unplanned outage rather than routine maintenance. Fleet-wide polling of this table across many switches helps identify a batch of devices affected by the same underlying hardware or software issue.
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| aristaGeneralMib | 1.3.6.1.4.1.30065.3.24 | First draft. | ||
| aristaGeneralMibNotifications | 1.3.6.1.4.1.30065.3.24.0 | |||
| aristaGeneralMibObjects | 1.3.6.1.4.1.30065.3.24.1 | |||
| aristaReloadCauseTable | 1.3.6.1.4.1.30065.3.24.1.1 | not-accessible | Information describing the reload cause of each CPU unit. On a modular system, entries for reboot instances of the standby supervisor are present only when the redundancy protocol is stateful switchover (SSO). | |
| aristaReloadCauseEntry | 1.3.6.1.4.1.30065.3.24.1.1.1 | not-accessible | This entry contains reload cause information of a CPU unit for a particular reboot instance. | |
| U32 aristaReloadUnitIndex | 1.3.6.1.4.1.30065.3.24.1.1.1.1 | Unsigned32 | not-accessible | A unique identifier for a CPU unit. On a modular system, it is the slot number of the supervisor. Unit index 0 mirrors the entries of the active supervisor. On a fixed system, unit index 0 is for the whole system. |
| U32 aristaReloadIndex | 1.3.6.1.4.1.30065.3.24.1.1.1.2 | Unsigned32 | not-accessible | A unique key to get the particular reboot instance. Reboot instances are numbered in reverse chronological order, with the latest reboot at index 0. |
| U32 aristaReloadCauseIndex | 1.3.6.1.4.1.30065.3.24.1.1.1.3 | Unsigned32 | not-accessible | A unique key to get one of the causes of a particular reboot instance. |
| OCT aristaReloadCauseDescription | 1.3.6.1.4.1.30065.3.24.1.1.1.4 | OCTET STRING | read-only | Description for the reload cause. |
| DAT aristaReloadTime | 1.3.6.1.4.1.30065.3.24.1.1.1.5 | DateAndTime | read-only | Time when the reload happened. |
| aristaGeneralMibConformance | 1.3.6.1.4.1.30065.3.24.2 | |||
| aristaGeneralMibCompliances | 1.3.6.1.4.1.30065.3.24.2.1 | |||
| aristaGeneralMibCompliance | 1.3.6.1.4.1.30065.3.24.2.1.1 | The compliance statement for Arista switches that support the ARISTA-GENERAL-MIB. | ||
| aristaGeneralMibGroups | 1.3.6.1.4.1.30065.3.24.2.2 | |||
| aristaGeneralMibGroup | 1.3.6.1.4.1.30065.3.24.2.2.1 | The collection of objects that provide reload cause information for the CPU units in the system. |
RFC description
Provides general system management information for Arista switches, including reload causes and CPU unit reboot history.
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