Point to Point testing

Posted on 2012-08-22
Last Modified: 2012-09-18
I want to test our Point to Point network for speed and drops but I am not sure what to really use.  I have continual pings running and some software installed that required a continuous feed but that’s about it.  What else can I use?
Question by:HBMI
    LVL 19

    Expert Comment

    you can try wireshark what is in fact network protocol analyzer you can use (actually not for speed testing, but for network testing).
    LVL 11

    Expert Comment

    Create a test file that's several gigs ( let's say 30 or 40 GB) and see the transfer speed and time. There are many small utilities that will generate files with the desired sized filled with either ones or zeros or random characters.
    LVL 77

    Expert Comment

    by:Rob Williams
    We use NetGong (formerly IPmonitor) to monitor network stability.  It will provide a nice html format report of any disconnects.

    Author Comment

    I downloaded the netgong which looks pretty cool but it looks like the lowest setting is 1 minute where the disconnect could only be out for 1 second.
    LVL 77

    Expert Comment

    by:Rob Williams
    Yes 1 minute is a limitation.  If you feel you need to check every 1ms I posted the following a while back:

    I put the following together. It should test your connection for you (>1/sec), however careful, it is pretty crude. It runs forever until you press Ctrl+C, but it makes no log entries until there is a disconnect. However, if the cable is disconnected for long it will fill the log very quickly. You might want to put some limits on it but I didn't have time right now. To run you need a tiny utility called Alive, as explained in the batch file. Just save with a name like Connect.bat and run by entering Connect <IP address>  e.g.  Connect  It will create a log file in the same folder named IPlog.txt with basic diagnostics as to why the disconnect.
    Hope it is of some help.

    Echo Off
    Set TestIP=%1%
    :: Download a little app called Alive from
    :: Extract the files to a directory with this batch file and run using 'FileName <IP address>'
    ::  (see the Alive.txt file for an explanation of the app)
    Echo Note: This batch file will run FOREVER and if the cable is disconected for any
    Echo  length of time, it will great a very large log very quickly.
    Echo  Press Ctrl+C  to exit

    If Exist IPLog.txt Del IPLog.txt
    Echo IP monitoring started %Date:~0,12% %Time:~0,5% >>IPLog.txt

    ALIVE /Timeout=3 %TestIP%
    If ErrorLevel 255 GoTo E255
    If ErrorLevel 8 GoTo E8
    If ErrorLevel 7 GoTo E7
    If ErrorLevel 6 GoTo E6
    If ErrorLevel 5 GoTo E5
    If ErrorLevel 4 GoTo E4
    If ErrorLevel 3 GoTo E3
    If ErrorLevel 2 GoTo E2
    If ErrorLevel 1 GoTo E1
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Request timed out >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Destination host unreachable >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Destination network unreachable >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Destination protocol unreachable >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Destination port unreachable >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Hardware error >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% TTL expired in transit >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5% Bad Destination  >>IPLog.txt
    GoTo NEXT
    Echo %Date:~0,12%  %Time:~0,5%  Unknown errors  >>IPLog.txt
    GoTo NEXT
    LVL 7

    Accepted Solution

    download iperf onto a PC/laptop at each end of the link.  Then hit the go button.  Get jperf if you like a gui front end.

    If its a bundled link you may need to run with a few parallel streams to max the link out.  TCP generally works, but UDP will push the link harder.

    If other people are depending on this, rent out a tester/analyser - most have a quasi 'RFC2544' test that will report general link capability.

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