Oxidized is a network device configuration backup tool
Community-based GPL-licensed network monitoring system
A Swiss army knife for your daily Linux network plumbing
Allows you to deploy configuration updates to your Cisco devices
TraceMAC is a command-line Layer 2 traceroute for Cisco switches
Full-Stack Infrastructure Performance Monitoring
Network / Storage Monitoring Solution
Environment to experiment the system on simulated and real networks
Firewall log analyzer
Storage, SAN, LAN Performance Monitoring: IBM,NetApp,Hitachi,HPE,EMC
RCDCap is a remote capture preprocessor
Network Ping time and UPS Logger
Cisco switch port mapper
Copy payload data from Wireshark .pcap files(s) to file
PHP-based looking glass for Cisco, Juniper & Zebra/Quagga routers
TCP and UDP network buffer
OPTOSS Next Gen Network Management System (NG-NetMS)
A simple, handy network addressing multitool with plenty of features.
Neo's Series Technology Document
A small but powerfull application For mass devices config & backup
VPCS
Automatic configuration generation tool for routers
Various TCP/IP servers, clients and network management tools