MTU discovery
Thread Starter
Joined: Nov 2000
Posts: 2,018
Likes: 73
From: Pewsey, UK
MTU discovery
Sorry to be a real geek, but does anyone out there know of a software tool which is standalone, runs on Windows 2000, and finds the lowest MTU in a routed path ?
It's for work !! I'm trying to find an answer on Tek-Tips but no joy so far.
It's for work !! I'm trying to find an answer on Tek-Tips but no joy so far.
Joined: Mar 2002
Posts: 448
Likes: 0
From: London, UK
Not all pretty and gooey, sorry, GUI 
but how about using "ping" in a DOS window ?
Ping a host at the other end of the link under observation. Use the -l bufsiz option to set a max length buffer, and the -f "do not fragment" option to force it to maintain the packet size. Reduce the bufsiz until you don't get an error -- the bufsiz is then equal to MTU
Converting this to a small batch file for convenience is left as an exercise for the reader
but how about using "ping" in a DOS window ?Ping a host at the other end of the link under observation. Use the -l bufsiz option to set a max length buffer, and the -f "do not fragment" option to force it to maintain the packet size. Reduce the bufsiz until you don't get an error -- the bufsiz is then equal to MTU
Converting this to a small batch file for convenience is left as an exercise for the reader
Joined: Jun 2000
Posts: 1,003
Likes: 0
From: Geriatrica, UK
Joined: Sep 1998
Posts: 513
Likes: 0
From: Sydney, Australia
The Nr Fairy
Ummmm....
I'm not sure if this answers your original query, but it may be worthwhile looking here - iSpeed
There is an MTU discovery option in the prog.
I have used it to successfully tweak old dial-up connections and also my new ADSL connection. It's good stuff.
AA
I'm not sure if this answers your original query, but it may be worthwhile looking here - iSpeed
There is an MTU discovery option in the prog.
I have used it to successfully tweak old dial-up connections and also my new ADSL connection. It's good stuff.
AA
