Thursday, April 7, 2011

mtr: Linux Network Diagnostic Tool

MTR combines the functionality of the traceroute and ping programs in a single net-work diagnostic tool. MTR is networking tools available on Linux. As mtr starts, it investigates the network connection between the host mtr runs on and a user-specified destination host.

MTR probes routers on the route path by limiting the number of hops individual packets may traverse, and listening to responses of their expiry. It will regularly repeat this process, usually once per second, and keep track of the response times of the hops along the path.

It investigates the network connection between the host mtr runs on and certain HOSTNAME by sending packets with purposly low TTLs. It continues to send packets with low TTL, noting the response time of the intervening routers. This allows mtr to print the response percentage and response times of the internet route to HOSTNAME. A sudden increase in packetloss or response time is often an indication of a bad (or simply overloaded) link.

#mtr google.com



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