mrtg ☆

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Description:
Multi router traffic grapher

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Networking

Tags: networking monitoring snmp graphing traffic

Install: brew install mrtg

About:
MRTG (Multi Router Traffic Grapher) is a tool to monitor network traffic load and generate visual graphs from SNMP-enabled devices. It logs traffic data via SNMP and creates daily, weekly, monthly, and yearly PNG graphs using GD library. It is widely used for visualizing bandwidth usage on routers, switches, servers, and other network appliances.

Key Features:

SNMP-based traffic monitoring
Generates real-time PNG graphs
Automatic log file rotation and data storage
Web-based interface for easy access
Low system resource usage

Use Cases:

Monitoring bandwidth usage on network routers and switches
Tracking traffic load on servers and network interfaces
Creating historical network performance reports

Alternatives:

Cacti – More advanced graphing and templating, but heavier than MRTG
Zabbix – Full monitoring suite with alerting, more complex setup
rrdtool – Core data logging and graphing engine, MRTG is built on top of it

Version History

Detected	Version	Rev	Change	Commit
Sep 16, 2025 4:24am		0	VERSION_BUMP	30535dc8
Sep 14, 2024 8:13am		0	VERSION_BUMP	c5e0ec2a