Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
iperf - A TCP, UDP, and SCTP network bandwidth measurement tool
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
JPerf - This project gives a better UI and new functionalities to the initial JPerf 1.
RANCID - RANCID - Really Awesome New Cisco confIg Differ.
NetStress - NetStress is a user-friendly benchmarking tool that is mostly used by networking professionals to measure the network performance of both wired and wireless connections.