NetCut - NetCut is a Software that helps you admin your network by purely on ARP protocol.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
XArp - XArp – Advanced ARP Spoofing Detection XArp performs advanced ARP spoofing detection mechanisms – made to secure your network.
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
Paessler PRTG - An advanced network monitoring solution to monitor network up/downtime, traffic and usage.
Zabbix - Track, record, alert and visualize performance and availability of IT resources