"This guide shows how to install and configure Smokeping on
Debian Etch to monitor network latency. From the Smokeping web
site: 'SmokePing is a deluxe latency measurement tool. It can
measure, store and display latency, latency distribution and packet
loss. SmokePing uses RRDtool to maintain a longterm data-store and
to draw pretty graphs, giving up to the minute information on the
state of each network connection...'"