- My traceroute
mtr or My traceroute is a
computer program which combines the functionality of thetraceroute andping programs in a single network diagnostic tool.mtr probes
router s 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.Characteristics
mtr is licensed under the
GNU General Public License (GPL) and it works under modernUnix-like operating systems. It normally works under the text console, but it also has an optionalGTK+ -based graphical interface.mtr relies on
ICMP Time Exceeded (type 11) packets coming back from routers, orICMP Echo Reply packets when the packets have hit their destination host.The tool is often used for network troubleshooting. By showing a list of routers traversed, and the average
round-trip time as well aspacket loss to each router, it allows the user to identify links between two particular routers responsible for certain fractions of the overall latency or packet loss through the network. This can help identify network over utilization problems.Example
My traceroute [v0.71] source-host.mydomain.com Sun Mar 25 00:07:50 2007Keys: Help Display mode Restart statistics Order of fields quit Packets PingsHostname %Loss Rcv Snt Last Best Avg Worst 1. hop1.mydomain.com 0% 11 11 1 1 1 2 2. ae-31-51.ebr1.Chicago1.Level3.n 19% 9 11 3 1 7 14 3. ae-1.ebr2.Chicago1.Level3.net 0% 11 11 7 1 7 14 4. ae-2.ebr2.Washington1.Level3.ne 19% 9 11 19 18 23 31 5. ae-1.ebr1.Washington1.Level3.ne 28% 8 11 22 18 24 30 6. ge-3-0-0-53.gar1.Washington1.Le 0% 11 11 18 18 20 36 7. 63.210.29.230 0% 10 10 19 19 19 19 8. t-3-1.bas1.re2.yahoo.com 0% 10 10 19 18 32 106 9. p25.www.re2.yahoo.com 0% 10 10 19 18 19 19Origins
The original mtr program was written by Matt Kimball in 1997. It was formerly named "Matt's Traceroute" because of that. Roger Wolff took over maintenance of mtr in October 1998. Numerous people made contributions (they are listed in the "AUTHORS" file which is part of the software distribution).
Compare
In
Microsoft Windows , a new utility,pathping , was introduced withWindows NT , combining ping and traceroute functionality in a somewhat similar way.See also
*
Traceroute
*Ping ,fping External links
* [http://www.bitwizard.nl/mtr/ MTR] , BitWizard's MTR page with Unix downloads.
* [http://winmtr.sourceforge.net/ WinMTR] , a GUI compilation of mtr for Microsoft Windows OS's.
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