One small binary
Go backend and React web UI in a single binary. Runs on Linux and Windows. PostgreSQL stores configuration and events, and a built-in time-series database stores metrics.
For ISPs and IT teams
Network monitoring for ISPs and IT teams
One small binary to watch routers, switches, OLTs, ONUs and any SNMP device, including servers with SNMP enabled. Small or large network, with alerts on WhatsApp.
- SNMP v2c / v3
- OLT · ONU
- NetFlow · BGP
Live demo preview (simulated data)
- Normal
- High
- Down
WhatsApp alert sent to the NOC team
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.
Traffic
3.6 GbpsAlerts
- Link recovered: AGG-C ↔ OLT-4
- WhatsApp alert sent to the NOC team
- Link down: AGG-C ↔ OLT-4
Hover a node for details. Click to focus. Drag to move.
Ready-made device templates
- Cisco
- Huawei
- Juniper EX
- V-SOL
- BDCOM
- Grandstream
- Generic SNMP
Product names belong to their owners and are listed only to show which device templates exist.
Why NetNMS
Monitoring that stays simple
Many monitoring setups mean installing and joining several components. NetNMS ships as one small binary and covers what ISP and IT teams watch every day.
Made for ISP networks
OLT and ONU status, optical power, BGP sessions, NetFlow and LLDP topology live in one web UI.
Alerts where your team is
WhatsApp, Telegram, e-mail and webhook notifications, with routing by severity, escalation and a delivery log.
- 1sLive traffic graph for any port
- 4Notification channels
- 7Device template families
- 2Operating systems for the server
Who it is for
For ISPs and for IT teams
NetNMS began with ISP networks. It works for any organisation that runs devices speaking SNMP, from a small office to a large network.
Internet service providers
- GPON and EPON OLT and ONU status with optical Rx/Tx power
- BGP sessions and a NetFlow / BGP NOC view
- LLDP topology maps with live link colours
- Availability and 95th percentile traffic reports
IT companies and enterprises
- Routers, switches and any device that speaks SNMP v2c or v3
- Linux and Windows servers with SNMP enabled, plus ICMP ping up/down
- From a small office to a large multi-site network
- Syslog and SNMP trap receivers in the same place
Features
Everything in one web UI
Core monitoring is built and running. Device config backup is on the way.
OLT and ONU monitoring
ONU status, serial numbers and optical Rx/Tx power on GPON and EPON OLTs.
Learn moreSNMP and ping monitoring
SNMP v2c and v3, ICMP up/down with latency and packet loss, interface traffic with 64-bit counters.
Learn moreNetFlow and BGP
Top talkers, peers, security findings and flow alert rules. BGP session state, flaps and prefixes.
Learn moreTopology maps
Automatic LLDP neighbour discovery and network maps with live colours and sub-maps.
Learn moreAlerts and notifications
Rules, acknowledge, maintenance windows and history. Send to WhatsApp, Telegram, e-mail or webhook.
Learn moreReports
Availability, traffic with 95th percentile and SFP health, per site.
Learn moreSyslog and SNMP traps
Receive syslog over UDP or TCP and SNMP v1/v2c traps, with search.
Learn more Coming soonDevice config backup
Scheduled backups of router, switch and OLT configs with change history.
Learn moreLive network map
See what is wrong, and where
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.
- LLDP neighbours are discovered automatically and drawn as links between ports.
- Link colours follow utilisation and status.
- Sub-maps and a background image let you match your own sites.
- Open any port to watch a live 1-second traffic graph.
Illustration with sample values, not a real screenshot. Real screenshots will replace these.
In the dashboard
Clear views for daily work
Tables and graphs made for people who watch a network all day.
ONU status and optical power
Check ONU status and optical Rx power in one table.
| ONU | Status | Rx power |
|---|---|---|
| ONU-3-1 | Online | -19.8 dBm |
| ONU-3-2 | Online | -21.4 dBm |
| ONU-3-3 | Offline | - |
| ONU-4-1 | Online | -18.9 dBm |
| ONU-4-2 | Online | -20.6 dBm |
BGP sessions
State, flaps and prefixes for each peer.
| Peer | State | Prefixes |
|---|---|---|
| AS64496 | Established | 120 |
| AS64497 | Established | 48 |
| AS64498 | Established | 906 |
WhatsApp alerts
Alert messages go straight to your team's WhatsApp.
ALERT: Link down AGG-B ↔ OLT-3
Recovered: AGG-B ↔ OLT-3
Compare
A simpler, ISP-focused choice
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 | One small binary. 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. |
How it works
Up and running in three steps
Install
Run the single NetNMS binary on Linux or Windows.
Add devices
Create sites, import devices from CSV and add SNMP v2c or v3 credentials. Templates are matched automatically.
Watch and get alerts
Use dashboards, maps and reports. Alerts go to WhatsApp, Telegram, e-mail or webhook.
Coming soon
Device config backup
Scheduled backup of router, switch and OLT configurations, with change history, diff and restore help. This is not available yet.
FAQ
Common questions
What is NetNMS?
NetNMS is a web-based network monitoring system. It is one small binary (Go backend, React web UI) for Linux and Windows, made by Anexg Tech in India.
Who is NetNMS for?
Internet service providers first. It also suits IT companies and any organisation that wants to monitor a small or large network.
Which devices can it monitor?
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.
Can it monitor Linux and Windows servers?
Yes, when SNMP is enabled on the server. NetNMS reads what the server exposes over SNMP and checks it with ICMP ping.
Does it monitor OLTs and ONUs?
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.
How does it send alerts?
Through a WhatsApp gateway, Telegram, e-mail or webhook, routed by severity, with escalation, grouping and a delivery log.
What do I need to run it?
Linux or Windows and PostgreSQL for configuration and events. NetNMS has its own built-in time-series database for metrics.
Is device config backup available?
Not yet. It is planned and marked Coming soon.
See NetNMS on your network
Tell us about your network and we will arrange a demo.