mtr combines the functionality of the 'traceroute' and 'ping' programs in a single network
diagnostic tool.
As mtr starts, it investigates the network connection between the host mtr runs on and a
user-specified 
destination host. After it determines the address of each network hop between the machines, it sends
a 
sequence ICMP ECHO requests to each one to determine the quality of the link to each machine. 
As it does this, it prints running statistics about each machine.

MTR - Matt's Traceroute internal-Version v0.84
source: ftp://ftp.bitwizard.nl/mtr/mtr-0.84.tar.gz