---
type: Monitoring Guide
title: "How to Monitor Server Uptime via SNMP"
description: "How to Monitor Server Uptime via SNMP"
resource: "https://snmp-monitoring.info/monitoring/server/uptime/"
tags: [monitoring]
timestamp: 2026-07-10T00:00:00Z
---

# How to Monitor Server Uptime via SNMP

How to Monitor Server Uptime via SNMP

## Related concepts

- Up: [SNMP Server Monitoring: CPU, RAM, Disk & Uptime](/monitoring/server/index.md)

## Frequently asked questions

### What OID is uptime in SNMP?

sysUpTime 1.3.6.1.2.1.1.3.0 (agent) and hrSystemUptime 1.3.6.1.2.1.25.1.1.0 (host). Pick deliberately.

### sysUpTime vs hrSystemUptime?

Agent/SNMP engine vs host boot. See the table above.

### How do I convert TimeTicks to seconds?

Divide by 100.

### How do I detect a reboot via SNMP?

Watch for a sudden drop in hrSystemUptime versus the previous sample (accounting for wrap), ideally confirmed across polls.

## Source

Concept generated from https://snmp-monitoring.info/monitoring/server/uptime/ — the SNMP Monitoring vendor-neutral knowledge base. Content is limited to what that page states (no external claims added here).