Kashif Hafeez

STFC RAL

GridPP43 – August 2019

LibreNMS at the Tier 1

Contents

• Why LibreNMS.

• What is LibreNMS.

• Installing LibreNMS.

• Adding devices.

• Our Setup.

• Maps.

• VMware integration.

• Future use.

Librenms vs observium

What is LibreNMS

• SNMP-based auto-discovering network monitoring system.

• Written in PHP as a web application.

• Use MySQL/MariaDB and RRD backend.

• Community-based fork of the last GPL-licensed version of Observium.

• Includes support for a wide range of hardware.

• Over 100 vendors supported.

• Routers, Switches, Access Points, Security gateways. Hosts, Printers, … range of server/network devices

Vendors3Com Brocade Engenius Lantronix NRG Siklu

ADTRAN Brother Enterasys Lenovo OKI Sentry3

Acceidan Buffalo Epson Lexmark OpenBSD Solaris

Aerohive Calix Extreme Liebert Oracle SonicWALL

AKCP Cambium F5 Networks LigoWave PacketShaper SpeedTouch

Alcatel-Lucent Canon Fastback Linux Palo Supermicro

Allied Canopy Fiberstore Maipu Papouch Symbol

APC Telesis Check FiberHome Mellanox PBN Telco

Apple Cisco Point Force10 Meraki Perle TPLink

Areca Cisco Fortinet MGE Powercode Tranzeo

Arista Citrix FreeBSD Microsemi Powerwalker Tripp

Aruba Cometsystem Gamatronic Mikrotik Prestige Ubiquiti

Audiocodes Comware Hikvision MRVLD Proxim Viprinet

Avaya D-Link HP Multimatic Proxmox VMware

Avocent Datacom Huawei NetApp Quanta VRP

AVTECH Deliberant HW NetBSD Radlan Vyatta

Axis Dell IBM NETGEAR Raritan VyOS

Barracuda Delta Infoblox NetMan Redback Watchguard

BCM963 DEVELOP iPoMan Netonix Ricoh WebPower

BDCom DKT ITWatchDogs Netopia Riverbed Windows

Bintec Eaton Comega Juniper NetVision Ruckus Xerox

Bluecat EDS Konica NetWare SAF Xirrus

BNT EMC Kyocera Nokia Samsung ZTE

Features

• Auto discovery• Alerting• Multiple environment sensors support• VLAN, ARP and FDB table collection• Customizable Dashboards• Distributed Polling• NetFlow, sFlow, IPFIX (NfSen)• Service monitoring (Nagios Plugins)• Syslog (Integrated, Graylog)• Traffic Billing (Quota, 95th Percentile)• Two Factor Authentication• Multiple Authentication Methods (MySQL, LDAP, Active Directory, HTTP)• API• Device Backup integration (Oxidized, RANCID)• Auto Updating• Multiple protocols data collection (STP, OSPF, BGP etc)

Installing LibreNMS

• Docker image

• Virtual machine images

• Manually (Ubuntu, RHEL/Centos)

• Migrating from Observium. (scripts available in installation folder)

For further information please visit:

https://docs.librenms.org/Installation/

Adding Device

• CLI./addhost.php yourhostname [community] [v1|v2c] [port] [udp|udp6|tcp|tcp6]

Example:/opt/librenms/addhost.php scarray-vmware2 community v2c STFC

• WebUI

• Ping Only Device

• Auto-discovery

• API

Hostname can be resolved using DNS or local /etc/hosts file.

Our Setup

• Two systems (VMs) for production and development use.

• Configured with dual network interfaces. Data and management.

• Install via Aquilon.

• Taking regular snapshots of the VMs and backup config files and rrd data.

• 292 Devices added so far.

• Include servers, switches, PDUs, storage arrays etc.

• Divided in different device groups.

• IPv6 interface (not configured yet)

MapsAvailabilityNetwork

Weathermap

Vmware hypervisor and shared storage

Vmware VMs monitoring

Future use

• Capacity planning (Distributed-Poller)

LibreNMS has the ability to distribute polling of devices to other machines. These machines can be in a different physical location and therefore minimize network latency for devices that are a considerable distance away or are behind NAT firewalls.

• Oxidized integration

A system for automatically extracting, storing, and comparing configuration files from network devices.

• SmokePING

Its a tool which lets us keep track of network latency, and visualise this through RRD graphs.

• Network-Weathermap with LibreNMS

Allow you to build network maps to help visualize network traffic flow rates.