SmokePing

SmokePing is an active network latency measurement tool written in Perl. SmokePing monitors round-trip-time delays, jitters, and packet loss rates against remote hosts over time, and shows historical network latency graphs and charts via web based interface. SmokePing is not a standalone monitoring tool, but rather relies on other third-party tools. That is, it relies on network measurement tools (e.g., ping, fping, curl, dig, ssh) for probing, uses RRDtool to store and visualize time-series measurement data, and runs on a CGI-capable web server for web interface. SmokePing\'s capabilities can be extended via probe-specific plugins which perform different types of probing tasks (e.g., DNS lookup, SSH access, HTTP/LDAP/SMTP/NFS/FTP ping). SmokePing allows master-slave based distributed monitoring setup, where the master coordinates monitoring activities of multiple slaves and collects their measurement data, while the slaves perform latency measurements from multiple distributed locations.