---
type: Monitoring Guide
title: "SNMP Router Monitoring: Interfaces, CPU & Uptime"
description: "Monitor a router with SNMP — portable IF-MIB interface stats, sysUpTime reachability, and vendor-specific CPU/memory OIDs for Cisco, MikroTik and Juniper."
resource: "https://snmp-monitoring.info/monitoring/network/router/"
tags: [monitoring]
timestamp: 2026-07-11T00:00:00Z
---

# SNMP Router Monitoring: Interfaces, CPU & Uptime

Monitor a router with SNMP — portable IF-MIB interface stats, sysUpTime reachability, and vendor-specific CPU/memory OIDs for Cisco, MikroTik and Juniper.

## Related concepts

- Up: [SNMP Network Monitoring: Interfaces, Bandwidth & Errors](/monitoring/network/index.md)

## Frequently asked questions

### How do I monitor a router with SNMP?

Walk the IF-MIB for per-interface traffic, errors and status (portable across every vendor), read sysUpTime for reachability and reboot detection, and pull CPU/memory from the router's vendor-specific enterprise MIB. Fingerprint the box with sysDescr first so you know which vendor objects to poll.

### What OID is router CPU?

There isn't a single universal one. Router CPU is vendor-specific, living under each vendor's enterprise tree at 1.3.6.1.4.1 — Cisco, MikroTik and Juniper each expose it differently. Identify the platform via sysObjectID/sysDescr, then use that vendor's documented CPU object rather than assuming one OID works everywhere.

### Can SNMP monitor BGP or OSPF on a router?

Yes, where the platform implements the relevant protocol MIBs — for example a BGP peer table exposing neighbour state, or OSPF neighbour objects. Availability and detail vary by vendor and MIB support, so check what your specific router exposes before building alerts on it.

### Which MIB gives router interface traffic?

The standard IF-MIB (1.3.6.1.2.1.2 and the extended 1.3.6.1.2.1.31). It's implemented consistently across router vendors, which is why interface monitoring is portable while CPU and memory are not.

## Source

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