NetNMS software
Go backend and React web UI in a single software. Runs on Linux and Windows. PostgreSQL stores configuration and events, and a built-in time-series database stores metrics.
For ISPs and IT teams
NetNMS software to watch routers, switches, OLTs, ONUs and any SNMP device, including servers with SNMP enabled. Small or large network, with alerts on WhatsApp.
Simulated example: two core routers connect three aggregation switches, which connect OLTs and ONUs. Link colours show utilisation. The demo plays a busy link, a link failure, a WhatsApp alert and a recovery.
Hover a node for details. Click to focus. Drag to move.
Ready-made device templates
Product names belong to their owners and are listed only to show which device templates exist.
Why NetNMS
Many monitoring setups mean installing and joining several components. NetNMS ships as one simple software and covers what ISP and IT teams watch every day.
Go backend and React web UI in a single software. Runs on Linux and Windows. PostgreSQL stores configuration and events, and a built-in time-series database stores metrics.
OLT and ONU status, optical power, BGP sessions, NetFlow and LLDP topology live in one web UI.
WhatsApp, Telegram, e-mail and webhook notifications, with routing by severity, escalation and a delivery log.
Who it is for
NetNMS began with ISP networks. It works for any organisation that runs devices speaking SNMP, from a small office to a large network.
Features
Core monitoring is built and running. Device config backup is on the way.
ONU status, serial numbers and optical Rx/Tx power on GPON and EPON OLTs.
Learn moreSNMP v2c and v3, ICMP up/down with latency and packet loss, interface traffic with 64-bit counters.
Learn moreTop talkers, peers, security findings and flow alert rules. BGP session state, flaps and prefixes.
Learn moreAutomatic LLDP neighbour discovery and network maps with live colours and sub-maps.
Learn moreRules, acknowledge, maintenance windows and history. Send to WhatsApp, Telegram, e-mail or webhook.
Learn moreAvailability, traffic with 95th percentile and SFP health, per site.
Learn moreReceive syslog over UDP or TCP and SNMP v1/v2c traps, with search.
Learn more Coming soonScheduled backups of router, switch and OLT configs with change history.
Learn moreLive network map
Maps use live colours, so a failing link or a down device stands out at once. Click through to the port, the OLT or the ONU.

Real screens
Screenshots from NetNMS watching a real network.





Compare
Zabbix, LibreNMS and Nagios are strong, mature tools with large communities. This is how NetNMS positions itself next to them.
| Topic | NetNMS | Zabbix, LibreNMS, Nagios |
|---|---|---|
| Installation | NetNMS software. PostgreSQL for configuration and events, built-in time-series database. | Mature tools, typically made of several components to install and maintain. |
| ISP features | OLT/ONU, BGP NOC and NetFlow in one UI. | General-purpose monitoring. ISP-specific views may need templates or extra setup. |
| Device templates | Ready templates for Cisco, Huawei, Juniper EX, V-SOL, BDCOM, Grandstream and generic SNMP. | Large template libraries exist. Check support for your exact devices. |
| Alert channels | WhatsApp gateway, Telegram, e-mail and webhook built in. | Many notification methods, set up per tool. |
| Product | Single-vendor product made for ISPs by Anexg Tech. | Open-source projects with large communities. |
| Installation and support | We install it for you in about 10 minutes. Free support by e-mail, phone, WhatsApp, Telegram and WeChat. | Usually installed and maintained by your own team. Support is often through community forums or paid plans. |
| Hardware needs | Low CPU and RAM use, so many devices can be monitored on modest hardware. | Often need more CPU and RAM as the number of devices grows. |
How it works
Our team installs NetNMS on your server, usually in about 10 minutes. You do not have to do anything.
Create sites, import devices from CSV and add SNMP v2c or v3 credentials. Templates are matched automatically.
Use dashboards, maps and reports. Alerts go to WhatsApp, Telegram, e-mail or webhook.
Done for you
You do not install or maintain anything. The Anexg Tech team does it with you, and support is free.
We set up NetNMS on your server for you. Nothing to install or configure on your side.
Updates are free and released fast, so fixes and improvements reach your server quickly.
Reach us by e-mail, phone call, WhatsApp, Telegram or WeChat. Support is free.
If you hit a bug or a problem, we solve it for you at no charge.
Devices from any vendor are supported as long as they speak SNMP. Need a new or unusual device? Tell us and we add support for it.
Where it runs
Run NetNMS on an Ubuntu server of your choice, in the cloud or on site, and reach remote networks over VPN.
We recommend Ubuntu Server for the best results. Any Ubuntu version works. Windows is possible, but we do not prefer it.
Run NetNMS on a cloud server or on a server you own. Both work.
Monitor remote or customer networks through a VPN or a tunnel, or from the customer end with a MikroTik or another VPN router.
NetNMS needs little CPU and RAM, so it can monitor many devices even on modest hardware.
Coming soon
Scheduled backup of router, switch and OLT configurations, with change history, diff and restore help. This is not available yet.
FAQ
NetNMS is a web-based network monitoring system. It is one simple software (Go backend, React web UI) for Linux and Windows, made by Anexg Tech in India.
Internet service providers first. It also suits IT companies and any organisation that wants to monitor a small or large network.
Any device that speaks SNMP v2c or v3, plus ICMP ping up/down. Ready templates exist for Cisco, Huawei (including NE40E), Juniper EX, V-SOL and BDCOM OLTs, Grandstream and generic SNMP.
Yes, when SNMP is enabled on the server. NetNMS reads what the server exposes over SNMP and checks it with ICMP ping.
Yes. GPON and EPON OLT and ONU monitoring shows ONU status, serial and optical Rx/Tx power. Some devices do not expose optical power over SNMP.
Through a WhatsApp gateway, Telegram, e-mail or webhook, routed by severity, with escalation, grouping and a delivery log.
An Ubuntu Server is recommended, and any Ubuntu version works. Windows is possible, but we do not prefer it. NetNMS uses PostgreSQL for configuration and events and has its own built-in time-series database for metrics. It needs little CPU and RAM, and it can run on a cloud server too. We install it for you.
Not yet. It is planned and marked Coming soon.
We do. Our team installs NetNMS on your server, usually in about 10 minutes, so you do not have to do anything. Updates and support are free.
Any device from any vendor that speaks SNMP, including routers, switches, OLTs, ONUs and servers with SNMP enabled. If you need a new or unusual device, tell us and we add support for it.
Yes. NetNMS can monitor remote networks through a VPN or a tunnel, or from the customer end with a MikroTik or another VPN router. This also works when NetNMS runs on a cloud server.
Tell us about your network and we will arrange a demo.